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..

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at