Re: frequent lockups in 3.18rc4
From: Linus Torvalds
Date: Mon Dec 01 2014 - 12:05:13 EST
On Mon, Dec 1, 2014 at 3:48 AM, Will Deacon <will.deacon@xxxxxxx> wrote:
> so for some bizarre reason, child1 (27912) managed to execve oom_score
> from /proc.
That sounds like you have a binfmt that accepts crap. Possibly
ARM-specific, although more likely it's just a misc script.
> We can see the child that did the execve has somehow gained its own
> child process (27921) that we're unable to backtrace. I can't see any
> clone/fork syscalls in the log for 27912.
Well, it wouldn't be trinity any more, it would likely be some execve
script (think "/bin/sh", except likely through binfmt_misc).
Do you have anything in /proc/sys/fs/binfmt_misc? I don't see anything
else that would trigger it.
This doesn't really look anything like DaveJ's issue, but who knows..
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