diff options
| author | Matt Wagantall <mattw@codeaurora.org> | 2014-09-14 17:27:37 -0700 |
|---|---|---|
| committer | Rohit Vaswani <rvaswani@codeaurora.org> | 2016-03-01 12:22:12 -0800 |
| commit | 2d290d9298e4da7438d258f7f89d9183256442b3 (patch) | |
| tree | e118f4d7c3866b05f0c7343a3471ec67b32b8f46 /arch/arm64/kernel/traps.c | |
| parent | f0e6227bd2ed8d4eb7dc535a2a29171847fdc31d (diff) | |
arm64: Don't call dump_mem() on stack memory during __die()
With multiple CPUs online, these memory dumps may consume a very
large amount of log buffer space, pushing out useful information.
Drop the call to dump_mem() for stack memory. The actual string-
formatted call stack will still be printed, which should be sufficient
for identifying the context of a panic. Stack memory can be collected
from full memory ramdumps if needed.
Change-Id: I2d08b49217b3838d3d3e7f8deceb937bb90ffaf7
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Diffstat (limited to 'arch/arm64/kernel/traps.c')
| -rw-r--r-- | arch/arm64/kernel/traps.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index e9b9b5364393..c56a8ae4172c 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -220,9 +220,6 @@ static int __die(const char *str, int err, struct thread_info *thread, TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), thread + 1); if (!user_mode(regs) || in_interrupt()) { - dump_mem(KERN_EMERG, "Stack: ", regs->sp, - THREAD_SIZE + (unsigned long)task_stack_page(tsk), - compat_user_mode(regs)); dump_backtrace(regs, tsk); dump_instr(KERN_EMERG, regs); } |