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| author | Daniel Jordan <daniel.m.jordan@oracle.com> | 2017-04-10 11:50:52 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-18 13:11:07 -0700 |
| commit | 395102db441abb8fd18fec5dd81428b5120232af (patch) | |
| tree | bcb11efdbc770a327a54259882a776f2a064cd3d /arch | |
| parent | fb5e2154b764812705dce84881319471d27606fb (diff) | |
| download | linux-stable-395102db441abb8fd18fec5dd81428b5120232af.tar.gz linux-stable-395102db441abb8fd18fec5dd81428b5120232af.tar.bz2 linux-stable-395102db441abb8fd18fec5dd81428b5120232af.zip | |
sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL
CONFIG_PROVE_LOCKING_SMALL shrinks the memory usage of lockdep so the
kernel text, data, and bss fit in the required 32MB limit, but this
option is not set for every config that enables lockdep.
A 4.10 kernel fails to boot with the console output
Kernel: Using 8 locked TLB entries for main kernel image.
hypervisor_tlb_lock[2000000:0:8000000071c007c3:1]: errors with f
Program terminated
with these config options
CONFIG_LOCKDEP=y
CONFIG_LOCK_STAT=y
CONFIG_PROVE_LOCKING=n
To fix, rename CONFIG_PROVE_LOCKING_SMALL to CONFIG_LOCKDEP_SMALL, and
enable this option with CONFIG_LOCKDEP=y so we get the reduced memory
usage every time lockdep is turned on.
Tested that CONFIG_LOCKDEP_SMALL is set to 'y' if and only if
CONFIG_LOCKDEP is set to 'y'. When other lockdep-related config options
that select CONFIG_LOCKDEP are enabled (e.g. CONFIG_LOCK_STAT or
CONFIG_PROVE_LOCKING), verified that CONFIG_LOCKDEP_SMALL is also
enabled.
Fixes: e6b5f1be7afe ("config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc")
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 68ac5c7cd982..a59deaef21e5 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -43,7 +43,7 @@ config SPARC select ARCH_HAS_SG_CHAIN select CPU_NO_EFFICIENT_FFS select HAVE_ARCH_HARDENED_USERCOPY - select PROVE_LOCKING_SMALL if PROVE_LOCKING + select LOCKDEP_SMALL if LOCKDEP select ARCH_WANT_RELAX_ORDER config SPARC32 |