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SubjectRe: bug in memcg oom-killer results in a hung syscall in another process in the same cgroup
>> Could you post the stack trace of the hung oom victim? Also could you
>> post the full kernel log?

With strace, when running 500 concurrent mem-hog tasks on the same
kernel, 33 of them failed with:

strace: ../sysdeps/nptl/fork.c:136: __libc_fork: Assertion
`THREAD_GETMEM (self, tid) != ppid' failed.

Which is: https://sourceware.org/bugzilla/show_bug.cgi?id=15392
And discussed before at: https://lkml.org/lkml/2015/2/6/470 but that
patch was not accepted.

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