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SubjectRe: memory-cgroup bug
On Fri 23-11-12 10:44:23, azurIt wrote:
[...]
> # gdb vmlinux
> GNU gdb (GDB) 7.0.1-debian
> Copyright (C) 2009 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /root/bug/dddddddd/vmlinux...(no debugging symbols found)...done.
> (gdb) disassemble mem_cgroup_handle_oom
> No symbol table is loaded. Use the "file" command.
>
>
>
> # objdump -d vmlinux | grep mem_cgroup_handle_oom
> <no output>

Hmm, strange so the function is on the stack but it has been inlined?
Doesn't make much sense to me.

> i can recompile the kernel if anything needs to be added into it.

If you could instrument mem_cgroup_handle_oom with some printks (before
we take the memcg_oom_lock, before we schedule and into
mem_cgroup_out_of_memory)
--
Michal Hocko
SUSE Labs


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