On 10/14/2015 12:24 AM, Jungseok Lee wrote:
On Oct 8, 2015, at 7:01 PM, AKASHI Takahiro wrote:
Hi Akashi,
Function graph tracer modifies a return address (LR) in a stack frame
to hook a function return. This will result in many useless entries
(return_to_handler) showing up in a stack tracer's
On Oct 8, 2015, at 7:01 PM, AKASHI Takahiro wrote:
Hi Akashi,
> Function graph tracer modifies a return address (LR) in a stack frame
> to hook a function return. This will result in many useless entries
> (return_to_handler) showing up in a stack tracer's output.
>
> This patch replaces such en
Hi AKASHI,
[auto build test ERROR on v4.3-rc4 -- if it's inappropriate base, please ignore]
config: arm64-allmodconfig (attached as .config)
reproduce:
wget
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
-O ~/bin/make.cross
chmod +x ~/bin/ma
Function graph tracer modifies a return address (LR) in a stack frame
to hook a function return. This will result in many useless entries
(return_to_handler) showing up in a stack tracer's output.
This patch replaces such entries with originals values preserved in
current->ret_stack[].
Signed-off
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