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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-12-01 13:32:17 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-12-01 13:32:17 +0100 |
| commit | b934069c991355d27a053a932591c77960f4e414 (patch) | |
| tree | f76b362d58c877e8e73499fec71b5644c28cd7ad /kernel/range.c | |
| parent | 7c81878b34dd1b75dec5c8b68951d1439854d358 (diff) | |
| download | linux-b934069c991355d27a053a932591c77960f4e414.tar.gz linux-b934069c991355d27a053a932591c77960f4e414.tar.bz2 linux-b934069c991355d27a053a932591c77960f4e414.zip | |
[S390] add missing .set function for NT_S390_LAST_BREAK regset
The last breaking event address is a read-only value, the regset misses the
.set function. If a PTRACE_SETREGSET is done for NT_S390_LAST_BREAK we
get an oops due to a branch to zero:
Kernel BUG at 0000000000000002 verbose debug info unavailable
illegal operation: 0001 #1 SMP
...
Call Trace:
(<0000000000158294> ptrace_regset+0x184/0x188)
<00000000001595b6> ptrace_request+0x37a/0x4fc
<0000000000109a78> arch_ptrace+0x108/0x1fc
<00000000001590d6> SyS_ptrace+0xaa/0x12c
<00000000005c7a42> sysc_noemu+0x16/0x1c
<000003fffd5ec10c> 0x3fffd5ec10c
Last Breaking-Event-Address:
<0000000000158242> ptrace_regset+0x132/0x188
Add a nop .set function to prevent the branch to zero.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: stable@kernel.org
Diffstat (limited to 'kernel/range.c')
0 files changed, 0 insertions, 0 deletions