| Commit message (Collapse) | Author | Age | Files | Lines |
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We need commit f8f6ae5d077a ("mm: always have io_remap_pfn_range() set
pgprot_decrypted()") to be able to merge Jason's cleanup patch.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Fixes to the ftrace test and several fixes from Tommi Rantala for
various other tests"
* tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: binderfs: use SKIP instead of XFAIL
selftests: clone3: use SKIP instead of XFAIL
selftests: core: use SKIP instead of XFAIL in close_range_test.c
selftests: proc: fix warning: _GNU_SOURCE redefined
selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c
selftests: pidfd: add CONFIG_CHECKPOINT_RESTORE=y to config
selftests: pidfd: skip test on kcmp() ENOSYS
selftests: pidfd: use ksft_test_result_skip() when skipping test
selftests/harness: prettify SKIP message whitespace again
selftests: pidfd: fix compilation errors due to wait.h
selftests: filter kselftest headers from command in lib.mk
selftests/ftrace: check for do_sys_openat2 in user-memory test
selftests/ftrace: Use $FUNCTION_FORK to reference kernel fork function
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XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.
Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.
Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.
Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Makefile already contains -D_GNU_SOURCE, so we can remove it from the
*.c files.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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kcmp is not used in pidfd_setns_test.c, so do not include <linux/kcmp.h>
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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kcmp syscall is used in pidfd_getfd_test.c, so add
CONFIG_CHECKPOINT_RESTORE=y to config to ensure kcmp is available.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Skip test if kcmp() is not available, for example if kernel is compiled
without CONFIG_CHECKPOINT_RESTORE=y.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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There's planned tests != run tests in pidfd_test when some test is
skipped:
$ ./pidfd_test
TAP version 13
1..8
[...]
# pidfd_send_signal signal recycled pid test: Skipping test
# Planned tests != run tests (8 != 7)
# Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0
Fix by using ksft_test_result_skip():
$ ./pidfd_test
TAP version 13
1..8
[...]
ok 8 # SKIP pidfd_send_signal signal recycled pid test: Unsharing pid namespace not permitted
# Totals: pass:7 fail:0 xfail:0 xpass:0 skip:1 error:0
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
replaced XFAIL with SKIP in the output. Add one more space to make the
output aligned and pretty again.
Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Drop unneeded <linux/wait.h> header inclusion to fix pidfd compilation
errors seen in Fedora 32:
In file included from pidfd_open_test.c:9:
../../../../usr/include/linux/wait.h:17:16: error: expected identifier before numeric constant
17 | #define P_ALL 0
| ^
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit 1056d3d2c97e ("selftests: enforce local header dependency in
lib.mk") added header dependency to the rule, but as the rule uses $^,
the headers are added to the compiler command line.
This can cause unexpected precompiled header files being generated when
compilation fails:
$ echo { >> openat2_test.c
$ make
gcc -Wall -O2 -g -fsanitize=address -fsanitize=undefined openat2_test.c
tools/testing/selftests/kselftest_harness.h tools/testing/selftests/kselftest.h helpers.c
-o tools/testing/selftests/openat2/openat2_test
openat2_test.c:313:1: error: expected identifier or ‘(’ before ‘{’ token
313 | {
| ^
make: *** [../lib.mk:140: tools/testing/selftests/openat2/openat2_test] Error 1
$ file openat2_test*
openat2_test: GCC precompiled header (version 014) for C
openat2_test.c: C source, ASCII text
Fix it by filtering out the headers, so that we'll only pass the actual
*.c files in the compiler command line.
Fixes: 1056d3d2c97e ("selftests: enforce local header dependency in lib.mk")
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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More recent libc implementations are now using openat/openat2 system
calls so also add do_sys_openat2 to the tracing so that the test
passes on these systems because do_sys_open may not be called.
Thanks to Masami Hiramatsu for the help on getting this fix to work
correctly.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit cad6967ac108 ("fork: introduce kernel_clone()") replaced "_do_fork()"
with "kernel_clone()". The ftrace selftests reference the fork function in
several of the tests. The rename will make the tests break, but if those
names are changed in the tests, they would then break on older kernels. The
same set of tests should pass older kernels if they have previously passed.
Obviously, a new test may not work on older kernels if the test was added
due to a bug or a new feature.
The setup of ftracetest will now create a $FUNCTION_FORK bash variable
that will contain "_do_fork" for older kernels and "kernel_clone" for newer
ones. It figures out the proper name by examining /proc/kallsyms.
Note, available_filter_functions could also be used, but because some tests
should be able to pass without function tracing enabled, it could not be
used.
Fixes: eea11285dab3 ("tracing: switch to kernel_clone()")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.10-rc3, including fixes from wireless, can, and
netfilter subtrees.
Current merge window - bugs in new features:
- can: isotp: isotp_rcv_cf(): enable RX timeout handling in
listen-only mode
Previous releases - regressions:
- mac80211:
- don't require VHT elements for HE on 2.4 GHz
- fix regression where EAPOL frames were sent in plaintext
- netfilter:
- ipset: Update byte and packet counters regardless of whether
they match
- ip_tunnel: fix over-mtu packet send by allowing fragmenting even if
inner packet has IP_DF (don't fragment) set in its header (when
TUNNEL_DONT_FRAGMENT flag is not set on the tunnel dev)
- net: fec: fix MDIO probing for some FEC hardware blocks
- ip6_tunnel: set inner ipproto before ip6_tnl_encap to un-break gso
support
- sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian
platforms, sparse-related fix used the wrong integer size
Previous releases - always broken:
- netfilter: use actual socket sk rather than skb sk when routing
harder
- r8169: work around short packet hw bug on RTL8125 by padding frames
- net: ethernet: ti: cpsw: disable PTPv1 hw timestamping
advertisement, the hardware does not support it
- chelsio/chtls: fix always leaking ctrl_skb and another leak caused
by a race condition
- fix drivers incorrectly writing into skbs on TX:
- cadence: force nonlinear buffers to be cloned
- gianfar: Account for Tx PTP timestamp in the skb headroom
- gianfar: Replace skb_realloc_headroom with skb_cow_head for PTP
- can: flexcan:
- remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A
- add ECC initialization for VF610 and LX2160A
- flexcan_remove(): disable wakeup completely
- can: fix packet echo functionality:
- peak_canfd: fix echo management when loopback is on
- make sure skbs are not freed in IRQ context in case they need to
be dropped
- always clone the skbs to make sure they have a reference on the
socket, and prevent it from disappearing
- fix real payload length return value for RTR frames
- can: j1939: return failure on bind if netdev is down, rather than
waiting indefinitely
Misc:
- IPv6: reply ICMP error if the first fragment don't include all
headers to improve compliance with RFC 8200"
* tag 'net-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (66 commits)
ionic: check port ptr before use
r8169: work around short packet hw bug on RTL8125
net: openvswitch: silence suspicious RCU usage warning
chelsio/chtls: fix always leaking ctrl_skb
chelsio/chtls: fix memory leaks caused by a race
can: flexcan: flexcan_remove(): disable wakeup completely
can: flexcan: add ECC initialization for VF610
can: flexcan: add ECC initialization for LX2160A
can: flexcan: remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A
can: mcp251xfd: remove unneeded break
can: mcp251xfd: mcp251xfd_regmap_nocrc_read(): fix semicolon.cocci warnings
can: mcp251xfd: mcp251xfd_regmap_crc_read(): increase severity of CRC read error messages
can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on
can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping
can: peak_usb: add range checking in decode operations
can: xilinx_can: handle failure cases of pm_runtime_get_sync
can: ti_hecc: ti_hecc_probe(): add missed clk_disable_unprepare() in error path
can: isotp: padlen(): make const array static, makes object smaller
can: isotp: isotp_rcv_cf(): enable RX timeout handling in listen-only mode
can: isotp: Explain PDU in CAN_ISOTP help text
...
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If netfilter changes the packet mark, the packet is rerouted. The
ip_route_me_harder family of functions fails to use the right sk, opting
to instead use skb->sk, resulting in a routing loop when used with
tunnels. With the next change fixing this issue in netfilter, test for
the relevant condition inside our test suite, since wireguard was where
the bug was discovered.
Reported-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit fixes from Shuah Khan:
"Several kunit_tool and documentation fixes"
* tag 'linux-kselftest-kunit-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tools: fix kunit_tool tests for parsing test plans
Documentation: kunit: Update Kconfig parts for KUNIT's module support
kunit: test: fix remaining kernel-doc warnings
kunit: Don't fail test suites if one of them is empty
kunit: Fix kunit.py --raw_output option
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Some tests logs for kunit_tool tests are missing their test plans
causing their tests to fail; fix this by adding the test plans.
Fixes: 45dcbb6f5ef7 ("kunit: test: add test plan to KUnit TAP format")
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Empty test suite is okay test suite.
Don't fail the rest of the test suites if one of them is empty.
Fixes: 6ebf5866f2e8 ("kunit: tool: add Python wrappers for running KUnit tests")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Due to the raw_output() function on kunit_parser.py actually being a
generator, it only runs if something reads the lines it returns. Since
we no-longer do that (parsing doesn't actually happen if raw_output is
enabled), it was not printing anything.
Fixes: 45ba7a893ad8 ("kunit: kunit_tool: Separate out config/build/exec/parse")
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
"Only fixes and a sync of the headers so that the perf build is silent:
- Fix visibility attribute in python module init code with newer gcc
- Fix DRAM_BW_Use 0 issue for CLX/SKX in intel JSON vendor event
files
- Fix the build on new fedora by removing LTO compiler options when
building perl support
- Remove broken __no_tail_call attribute
- Fix segfault when trying to trace events by cgroup
- Fix crash with non-jited BPF progs
- Increase buffer size in TUI browser, fixing format truncation
- Fix printing of build-id for objects lacking one
- Fix byte swapping for ino_generation field in MMAP2 perf.data
records
- Fix byte swapping for CGROUP perf.data records, for cross arch
analysis of perf.data files
- Fix the fast path of feature detection
- Update kernel header copies"
* tag 'perf-tools-for-v5.10-2020-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (23 commits)
tools feature: Fixup fast path feature detection
perf tools: Add missing swap for cgroup events
perf tools: Add missing swap for ino_generation
perf tools: Initialize output buffer in build_id__sprintf
perf hists browser: Increase size of 'buf' in perf_evsel__hists_browse()
tools include UAPI: Update linux/mount.h copy
tools headers UAPI: Update tools's copy of linux/perf_event.h
tools kvm headers: Update KVM headers from the kernel sources
tools UAPI: Update copy of linux/mman.h from the kernel sources
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools x86 headers: Update required-features.h header from the kernel
tools x86 headers: Update cpufeatures.h headers copies
tools headers UAPI: Update fscrypt.h copy
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
tools headers UAPI: Sync prctl.h with the kernel sources
perf scripting python: Avoid declaring function pointers with a visibility attribute
perf tools: Remove broken __no_tail_call attribute
perf vendor events: Fix DRAM_BW_Use 0 issue for CLX/SKX
perf trace: Fix segfault when trying to trace events by cgroup
perf tools: Fix crash with non-jited bpf progs
...
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22dd1ac91a776752 ("tools: Remove feature-libelf-mmap feature detection")
correctly simplified the this feature detection, but forgot to remove
the call to the removed function in the main() function for the
test-all.c fast path feature detection, making it fail and thus do all
the feature detection individually, fix it.
$ cat /tmp/build/perf/feature/test-all.make.output
test-all.c: In function ‘main’:
test-all.c:188:2: error: implicit declaration of function ‘main_test_libelf_mmap’; did you mean ‘main_test_libelf’? [-Werror=implicit-function-declaration]
188 | main_test_libelf_mmap();
| ^~~~~~~~~~~~~~~~~~~~~
| main_test_libelf
cc1: all warnings being treated as errors
$ vim tools/build/feature/test-all.c
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;make V=1 -k O=/tmp/build/perf -C tools/perf install-bin ; perf test python
<SNIP>
$ cat /tmp/build/perf/feature/test-all.make.output
$
Fixes: 22dd1ac91a776752 ("tools: Remove feature-libelf-mmap feature detection")
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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It was missed to add a swap function for PERF_RECORD_CGROUP.
Fixes: ba78c1c5461c ("perf tools: Basic support for CGROUP event")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20201102140228.303657-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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We are missing swap for ino_generation field.
Fixes: 5c5e854bc760 ("perf tools: Add attr->mmap2 support")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201101233103.3537427-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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We display garbage for undefined build_id objects, because we don't
initialize the output buffer.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201101233103.3537427-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Making perf with gcc-9.1.1 generates the following warning:
CC ui/browsers/hists.o
ui/browsers/hists.c: In function 'perf_evsel__hists_browse':
ui/browsers/hists.c:3078:61: error: '%d' directive output may be \
truncated writing between 1 and 11 bytes into a region of size \
between 2 and 12 [-Werror=format-truncation=]
3078 | "Max event group index to sort is %d (index from 0 to %d)",
| ^~
ui/browsers/hists.c:3078:7: note: directive argument in the range [-2147483648, 8]
3078 | "Max event group index to sort is %d (index from 0 to %d)",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:937,
from ui/browsers/hists.c:5:
IOW, the string in line 3078 might be too long for buf[] of 64 bytes.
Fix this by increasing the size of buf[] to 128.
Fixes: dbddf1747441 ("perf report/top TUI: Support hotkeys to let user select any event for sorting")
Signed-off-by: Song Liu <songliubraving@fb.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: stable@vger.kernel.org # v5.7+
Link: http://lore.kernel.org/lkml/20201030235431.534417-1-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
dab741e0e02bd3c4 ("Add a "nosymfollow" mount option.")
That ends up adding support for the new MS_NOSYMFOLLOW mount flag:
$ tools/perf/trace/beauty/mount_flags.sh > before
$ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h
$ tools/perf/trace/beauty/mount_flags.sh > after
$ diff -u before after
--- before 2020-11-03 08:51:28.117997454 -0300
+++ after 2020-11-03 08:51:38.992218869 -0300
@@ -7,6 +7,7 @@
[32 ? (ilog2(32) + 1) : 0] = "REMOUNT",
[64 ? (ilog2(64) + 1) : 0] = "MANDLOCK",
[128 ? (ilog2(128) + 1) : 0] = "DIRSYNC",
+ [256 ? (ilog2(256) + 1) : 0] = "NOSYMFOLLOW",
[1024 ? (ilog2(1024) + 1) : 0] = "NOATIME",
[2048 ? (ilog2(2048) + 1) : 0] = "NODIRATIME",
[4096 ? (ilog2(4096) + 1) : 0] = "BIND",
$
So now one can use it in --filter expressions for tracepoints.
This silences this perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mattias Nissler <mnissler@chromium.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The diff is just tabs versus spaces, trivial.
This silences this perf tools build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Some should cause changes in tooling, like the one adding LAST_EXCP, but
the way it is structured end up not making that happen.
The new SVM_EXIT_INVPCID should get used by arch/x86/util/kvm-stat.c,
in the svm_exit_reasons table.
The tools/perf/trace/beauty part has scripts to catch changes and
automagically create tables, like tools/perf/trace/beauty/kvm_ioctl.sh,
but changes are needed to make tools/perf/arch/x86/util/kvm-stat.c catch
those automatically.
These were handled by the existing scripts:
$ tools/perf/trace/beauty/kvm_ioctl.sh > before
$ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
$ tools/perf/trace/beauty/kvm_ioctl.sh > after
$ diff -u before after
--- before 2020-11-03 08:43:52.910728608 -0300
+++ after 2020-11-03 08:44:04.273959984 -0300
@@ -89,6 +89,7 @@
[0xbf] = "SET_NESTED_STATE",
[0xc0] = "CLEAR_DIRTY_LOG",
[0xc1] = "GET_SUPPORTED_HV_CPUID",
+ [0xc6] = "X86_SET_MSR_FILTER",
[0xe0] = "CREATE_DEVICE",
[0xe1] = "SET_DEVICE_ATTR",
[0xe2] = "GET_DEVICE_ATTR",
$
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
$ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h
$
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
$ diff -u before after
--- before 2020-11-03 08:45:55.522225198 -0300
+++ after 2020-11-03 08:46:12.881578666 -0300
@@ -37,4 +37,5 @@
[0x71] = "VDPA_GET_STATUS",
[0x73] = "VDPA_GET_CONFIG",
[0x76] = "VDPA_GET_VRING_NUM",
+ [0x78] = "VDPA_GET_IOVA_RANGE",
};
$
This addresses these perf build warnings:
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/sie.h' differs from latest version at 'arch/s390/include/uapi/asm/sie.h'
diff -u tools/arch/s390/include/uapi/asm/sie.h arch/s390/include/uapi/asm/sie.h
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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e47168f3d1b14af5 ("powerpc/8xx: Support 16k hugepages with 4k pages")
That don't cause any changes in tooling, just addresses this perf build
warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h'
diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
29dcc60f6a19fb0a ("x86/boot/compressed/64: Add stage1 #VC handler")
36e1be8ada994d50 ("perf/x86/amd/ibs: Fix raw sample data accumulation")
59a854e2f3b90ad2 ("perf/x86/intel: Support TopDown metrics on Ice Lake")
7b2c05a15d29d057 ("perf/x86/intel: Generic support for hardware TopDown metrics")
99e40204e014e066 ("x86/msr: Move the F15h MSRs where they belong")
b57de6cd16395be1 ("x86/sev-es: Add SEV-ES Feature Detection")
ed7bde7a6dab521e ("cpufreq: intel_pstate: Allow enable/disable energy efficiency")
f0f2f9feb4ee6f28 ("x86/msr-index: Define an IA32_PASID MSR")
That cause these changes in tooling:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
--- before 2020-10-19 13:27:33.195274425 -0300
+++ after 2020-10-19 13:27:44.144507610 -0300
@@ -113,6 +113,8 @@
[0x00000309] = "CORE_PERF_FIXED_CTR0",
[0x0000030a] = "CORE_PERF_FIXED_CTR1",
[0x0000030b] = "CORE_PERF_FIXED_CTR2",
+ [0x0000030c] = "CORE_PERF_FIXED_CTR3",
+ [0x00000329] = "PERF_METRICS",
[0x00000345] = "IA32_PERF_CAPABILITIES",
[0x0000038d] = "CORE_PERF_FIXED_CTR_CTRL",
[0x0000038e] = "CORE_PERF_GLOBAL_STATUS",
@@ -222,6 +224,7 @@
[0x00000774] = "HWP_REQUEST",
[0x00000777] = "HWP_STATUS",
[0x00000d90] = "IA32_BNDCFGS",
+ [0x00000d93] = "IA32_PASID",
[0x00000da0] = "IA32_XSS",
[0x00000dc0] = "LBR_INFO_0",
[0x00000ffc] = "IA32_BNDCFGS_RSVD",
@@ -279,6 +282,7 @@
[0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE",
[0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA",
[0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL",
+ [0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB",
[0xc0010131 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV",
[0xc0010140 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_OSVW_ID_LENGTH",
[0xc0010141 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_OSVW_STATUS",
$
Which causes these parts of tools/perf/ to be rebuilt:
CC /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o
DESCEND plugins
GEN /tmp/build/perf/python/perf.so
INSTALL trace_plugins
LD /tmp/build/perf/trace/beauty/tracepoints/perf-in.o
LD /tmp/build/perf/trace/beauty/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/per
At some point these should just be tables read by perf on demand.
This addresses this perf tools build warning:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
ecac71816a1829c0 ("x86/paravirt: Use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT")
That don entail any changes in tooling, just addressing these perf tools
build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/required-features.h' differs from latest version at 'arch/x86/include/asm/required-features.h'
diff -u tools/arch/x86/include/asm/required-features.h arch/x86/include/asm/required-features.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
5866e9205b47a983 ("x86/cpu: Add hardware-enforced cache coherency as a CPUID feature")
ff4f82816dff28ff ("x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions")
360e7c5c4ca4fd8e ("x86/cpufeatures: Add SEV-ES CPU feature")
18ec63faefb3fd31 ("x86/cpufeatures: Enumerate TSX suspend load address tracking instructions")
e48cb1a3fb916500 ("x86/resctrl: Enumerate per-thread MBA controls")
Which don't cause any changes in tooling, just addresses these build
warnings:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Cc: Kyung Min Park <kyung.min.park@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To get the changes from:
c7f0207b613033c5 ("fscrypt: make "#define fscrypt_policy" user-only")
That don't cause any changes in tools/perf, only addresses this perf
tools build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h'
diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes in:
13149e8bafc46572 ("drm/i915: add syncobj timeline support")
cda9edd02425d790 ("drm/i915: introduce a mechanism to extend execbuf2")
That don't result in any changes in tooling, just silences this perf
build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To get the changes in:
1c101da8b971a366 ("arm64: mte: Allow user control of the tag check mode via prctl()")
af5ce95282dc99d0 ("arm64: mte: Allow user control of the generated random tags via prctl()")
Which don't cause any change in tooling, only addresses this perf build
warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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attribute
To avoid this:
util/scripting-engines/trace-event-python.c: In function 'python_start_script':
util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
1595 | PyMODINIT_FUNC (*initfunc)(void);
| ^~~~~~~~~~~~~~
That started breaking when building with PYTHON=python3 and these gcc
versions (I haven't checked with the clang ones, maybe it breaks there
as well):
# export PERF_TARBALL=http://192.168.86.5/perf/perf-5.9.0.tar.xz
# dm fedora:33 fedora:rawhide
1 107.80 fedora:33 : Ok gcc (GCC) 10.2.1 20201005 (Red Hat 10.2.1-5), clang version 11.0.0 (Fedora 11.0.0-1.fc33)
2 92.47 fedora:rawhide : Ok gcc (GCC) 10.2.1 20201016 (Red Hat 10.2.1-6), clang version 11.0.0 (Fedora 11.0.0-1.fc34)
#
Avoid that by ditching that 'initfunc' function pointer with its:
#define Py_EXPORTED_SYMBOL _attribute_ ((visibility ("default")))
#define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject*
And just call PyImport_AppendInittab() at the end of the ifdef python3
block with the functions that were being attributed to that initfunc.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The GCC specific __attribute__((optimize)) attribute does not what is
commonly expected and is explicitly recommended against using in
production code by the GCC people.
Unlike what is often expected, it doesn't add to the optimization flags,
but it fully replaces them, loosing any and all optimization flags
provided by the compiler commandline.
The only guaranteed upon means of inhibiting tail-calls is by placing a
volatile asm with side-effects after the call such that the tail-call simply
cannot be done.
Given the original commit wasn't specific on which calls were the problem, this
removal might re-introduce the problem, which can then be re-analyzed and cured
properly.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20201028081123.GT2628@hirez.programming.kicks-ass.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Ian reports an issue that the metric DRAM_BW_Use often remains 0.
The metric expression for DRAM_BW_Use on CLX/SKX:
"( 64 * ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) / 1000000000 ) / duration_time"
The counts of uncore_imc/cas_count_read/ and uncore_imc/cas_count_write/
are scaled up by 64, that is to turn a count of cache lines into bytes,
the count is then divided by 1000000000 to give GB.
However, the counts of uncore_imc/cas_count_read/ and
uncore_imc/cas_count_write/ have been scaled yet.
The scale values are from sysfs, such as
/sys/devices/uncore_imc_0/events/cas_count_read.scale.
It's 6.103515625e-5 (64 / 1024.0 / 1024.0).
So if we use original metric expression, the result is not correct.
But the difficulty is, for SKL client, the counts are not scaled.
The metric expression for DRAM_BW_Use on SKL:
"64 * ( arb@event\\=0x81\\,umask\\=0x1@ + arb@event\\=0x84\\,umask\\=0x1@ ) / 1000000 / duration_time / 1000"
root@kbl-ppc:~# perf stat -M DRAM_BW_Use -a -- sleep 1
Performance counter stats for 'system wide':
190 arb/event=0x84,umask=0x1/ # 1.86 DRAM_BW_Use
29,093,178 arb/event=0x81,umask=0x1/
1,000,703,287 ns duration_time
1.000703287 seconds time elapsed
The result is expected.
So the easy way is just change the metric expression for CLX/SKX.
This patch changes the metric expression to:
"( ( ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) * 1048576 ) / 1000000000 ) / duration_time"
1048576 = 1024 * 1024.
Before (tested on CLX):
root@lkp-csl-2sp5 ~# perf stat -M DRAM_BW_Use -a -- sleep 1
Performance counter stats for 'system wide':
765.35 MiB uncore_imc/cas_count_read/ # 0.00 DRAM_BW_Use
5.42 MiB uncore_imc/cas_count_write/
1001515088 ns duration_time
1.001515088 seconds time elapsed
After:
root@lkp-csl-2sp5 ~# perf stat -M DRAM_BW_Use -a -- sleep 1
Performance counter stats for 'system wide':
767.95 MiB uncore_imc/cas_count_read/ # 0.80 DRAM_BW_Use
5.02 MiB uncore_imc/cas_count_write/
1001900010 ns duration_time
1.001900010 seconds time elapsed
Fixes: 038d3b53c284 ("perf vendor events intel: Update CascadelakeX events to v1.08")
Fixes: b5ff7f2799a4 ("perf vendor events: Update SkylakeX events to v1.21")
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20201023005334.7869-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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# ./perf trace -e sched:sched_switch -G test -a sleep 1
perf: Segmentation fault
Obtained 11 stack frames.
./perf(sighandler_dump_stack+0x43) [0x55cfdc636db3]
/lib/x86_64-linux-gnu/libc.so.6(+0x3efcf) [0x7fd23eecafcf]
./perf(parse_cgroups+0x36) [0x55cfdc673f36]
./perf(+0x3186ed) [0x55cfdc70d6ed]
./perf(parse_options_subcommand+0x629) [0x55cfdc70e999]
./perf(cmd_trace+0x9c2) [0x55cfdc5ad6d2]
./perf(+0x1e8ae0) [0x55cfdc5ddae0]
./perf(+0x1e8ded) [0x55cfdc5ddded]
./perf(main+0x370) [0x55cfdc556f00]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe6) [0x7fd23eeadb96]
./perf(_start+0x29) [0x55cfdc557389]
Segmentation fault
#
It happens because "struct trace" in option->value is passed to the
parse_cgroups function instead of "struct evlist".
Fixes: 9ea42ba4411ac ("perf trace: Support setting cgroups as targets")
Signed-off-by: Stanislav Ivanichkin <sivanichkin@yandex-team.ru>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
Link: http://lore.kernel.org/lkml/20201027094357.94881-1-sivanichkin@yandex-team.ru
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The addr in PERF_RECORD_KSYMBOL events for non-jited bpf progs points to
the bpf interpreter, ie. within kernel text section. When processing the
unregister event, this causes unexpected removal of vmlinux_map,
crashing perf later in cleanup:
# perf record -- timeout --signal=INT 2s /usr/share/bcc/tools/execsnoop
PCOMM PID PPID RET ARGS
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.208 MB perf.data (5155 samples) ]
perf: tools/include/linux/refcount.h:131: refcount_sub_and_test: Assertion `!(new > val)' failed.
Aborted (core dumped)
# perf script -D|grep KSYM
0 0xa40 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_f958f6eb72ef5af6
0 0xab0 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_8c42dee26e8cd4c2
0 0xb20 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_f958f6eb72ef5af6
108563691893 0x33d98 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3b0 len 0 type 1 flags 0x0 name bpf_prog_bc5697a410556fc2_syscall__execve
108568518458 0x34098 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3f0 len 0 type 1 flags 0x0 name bpf_prog_45e2203c2928704d_do_ret_sys_execve
109301967895 0x34830 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3b0 len 0 type 1 flags 0x1 name bpf_prog_bc5697a410556fc2_syscall__execve
109302007356 0x348b0 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3f0 len 0 type 1 flags 0x1 name bpf_prog_45e2203c2928704d_do_ret_sys_execve
perf: tools/include/linux/refcount.h:131: refcount_sub_and_test: Assertion `!(new > val)' failed.
Here the addresses match the bpf interpreter:
# grep -e ffffffffa9b6b530 -e ffffffffa9b6b3b0 -e ffffffffa9b6b3f0 /proc/kallsyms
ffffffffa9b6b3b0 t __bpf_prog_run224
ffffffffa9b6b3f0 t __bpf_prog_run192
ffffffffa9b6b530 t __bpf_prog_run32
Fix by not allowing vmlinux_map to be removed by PERF_RECORD_KSYMBOL
unregister event.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201016114718.54332-1-tommi.t.rantala@nokia.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
ecb8ac8b1f146915 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")
That addresses these perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes in:
85367030a6c7ef33 ("libbpf: Centralize poisoning and poison reallocarray()")
7d9c71e10baa3496 ("libbpf: Extract generic string hashing function for reuse")
That don't entail any changes in tools/perf.
This addresses this perf build warning:
Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h
Not a kernel ABI, its just that this uses the mechanism in place for
checking kernel ABI files drift.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To avoid breaking the build by mixing files compiled with things coming
from distro specific compiler options for perl with the rest of perf,
i.e. to avoid this:
`.gnu.debuglto_.debug_macro' referenced in section `.gnu.debuglto_.debug_macro' of /tmp/build/perf/util/scripting-engines/perf-in.o: defined in discarded section `.gnu.debuglto_.debug_macro[wm4.stdcpredef.h.19.8dc41bed5d9037ff9622e015fb5f0ce3]' of /tmp/build/perf/util/scripting-engines/perf-in.o
Noticed on Fedora 33.
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1593431
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://src.fedoraproject.org/rpms/kernel-tools/c/589a32b62f0c12516ab7b34e3dd30d450145bfa4?branch=master
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pull documentation build warning fixes from Jonathan Corbet:
"This contains a series of warning fixes from Mauro; once applied, the
number of warnings from the once-noisy docs build process is nearly
zero.
Getting to this point has required a lot of work; once there,
hopefully we can keep things that way.
I have packaged this as a separate pull because it does a fair amount
of reaching outside of Documentation/. The changes are all in comments
and in code placement. It's all been in linux-next since last week"
* tag 'docs-5.10-warnings' of git://git.lwn.net/linux: (24 commits)
docs: SafeSetID: fix a warning
amdgpu: fix a few kernel-doc markup issues
selftests: kselftest_harness.h: fix kernel-doc markups
drm: amdgpu_dm: fix a typo
gpu: docs: amdgpu.rst: get rid of wrong kernel-doc markups
drm: amdgpu: kernel-doc: update some adev parameters
docs: fs: api-summary.rst: get rid of kernel-doc include
IB/srpt: docs: add a description for cq_size member
locking/refcount: move kernel-doc markups to the proper place
docs: lockdep-design: fix some warning issues
MAINTAINERS: fix broken doc refs due to yaml conversion
ice: docs fix a devlink info that broke a table
crypto: sun8x-ce*: update entries to its documentation
net: phy: remove kernel-doc duplication
mm: pagemap.h: fix two kernel-doc markups
blk-mq: docs: add kernel-doc description for a new struct member
docs: userspace-api: add iommu.rst to the index file
docs: hwmon: mp2975.rst: address some html build warnings
docs: net: statistics.rst: remove a duplicated kernel-doc
docs: kasan.rst: add two missing blank lines
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The kernel-doc markups there is violating the expected
syntax, causing it to not parse the name of the
markup identifier properly, preventing it to check
if the kernel-doc matches the #define below each
markup.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/697640045663f1366beb15e76e78b420dac5f5a2.1603791716.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Add a test case to ensure an event is observed by at least one poller
when an epoll timeout is used.
Signed-off-by: Guantao Liu <guantaol@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lkml.kernel.org/r/20201028180202.952079-2-soheil.kdev@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Since commit 9a40401cfa13 ("lib/scatterlist: Do not limit max_segment to
PAGE_ALIGNED values") the max_segment input to sg_alloc_table_from_pages()
does not have to be any special value. The new algorithm will always
create something less than what the user provides. Thus eliminate this
confusing constant.
- vmwgfx should use the HW capability, not mix in the OS page size for
calling dma_set_max_seg_size()
- i915 uses i915_sg_segment_size() both for sg_alloc_table_from_pages
and for some open coded sgl construction. This doesn't change the value
since rounddown(size, UINT_MAX) == SCATTERLIST_MAX_SEGMENT
- drm_prime_pages_to_sg uses it as a default if max_segment is zero,
UINT_MAX is fine to use directly.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Qian Cai <cai@lca.pw>
Cc: "Ursulin, Tvrtko" <tvrtko.ursulin@intel.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/0-v1-44733fccd781+13d-rm_scatterlist_max_jgg@nvidia.com
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- selftest fix
- force PTE mapping on device pages provided via VFIO
- fix detection of cacheable mapping at S2
- fallback to PMD/PTE mappings for composite huge pages
- fix accounting of Stage-2 PGD allocation
- fix AArch32 handling of some of the debug registers
- simplify host HYP entry
- fix stray pointer conversion on nVHE TLB invalidation
- fix initialization of the nVHE code
- simplify handling of capabilities exposed to HYP
- nuke VCPUs caught using a forbidden AArch32 EL0
x86:
- new nested virtualization selftest
- miscellaneous fixes
- make W=1 fixes
- reserve new CPUID bit in the KVM leaves"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: vmx: remove unused variable
KVM: selftests: Don't require THP to run tests
KVM: VMX: eVMCS: make evmcs_sanitize_exec_ctrls() work again
KVM: selftests: test behavior of unmapped L2 APIC-access address
KVM: x86: Fix NULL dereference at kvm_msr_ignored_check()
KVM: x86: replace static const variables with macros
KVM: arm64: Handle Asymmetric AArch32 systems
arm64: cpufeature: upgrade hyp caps to final
arm64: cpufeature: reorder cpus_have_{const, final}_cap()
KVM: arm64: Factor out is_{vhe,nvhe}_hyp_code()
KVM: arm64: Force PTE mapping on fault resulting in a device mapping
KVM: arm64: Use fallback mapping sizes for contiguous huge page sizes
KVM: arm64: Fix masks in stage2_pte_cacheable()
KVM: arm64: Fix AArch32 handling of DBGD{CCINT,SCRext} and DBGVCR
KVM: arm64: Allocate stage-2 pgd pages with GFP_KERNEL_ACCOUNT
KVM: arm64: Drop useless PAN setting on host EL1 to EL2 transition
KVM: arm64: Remove leftover kern_hyp_va() in nVHE TLB invalidation
KVM: arm64: Don't corrupt tpidr_el2 on failed HVC call
x86/kvm: Reserve KVM_FEATURE_MSI_EXT_DEST_ID
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