More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed

From: Eric W. Biederman
Date: Mon Jul 25 2016 - 15:10:06 EST


kernel test robot <xiaolong.ye@xxxxxxxxx> writes:

> FYI, we noticed the following commit:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git for-testing
> commit 54cc07a761deb38318aca64ddf07fc45157c85e0 ("fs: Call d_automount with the filesystems creds")
>
> in testcase: boot
>
> on test machine: 1 threads qemu-system-x86_64 -enable-kvm -cpu Westmere with 320M memory
>
> caused below changes:
>
>
> +-------------------------+------------+------------+
> | | 8175435777 | 54cc07a761 |
> +-------------------------+------------+------------+
> | boot_successes | 102 | 16 |
> | boot_failures | 0 | 3 |
> | BUG:kernel_test_crashed | 0 | 3 |
> | timestamp.last | 0 | 54.951425 |
> +-------------------------+------------+------------+
>
>
>
> [ 19.206454] VFS: Warning: trinity-c0 using old stat() call. Recompile your binary.
>
> Elapsed time: 70
> BUG: kernel test crashed

What application generated the line "BUG: kernel test crashed."
What flavor of crash was this?

Given the last boot test failure that was reported to me was about 10
commits after the problem commit I unfortunately can't take it at face
value that the appropriate commit has been pinpointed.

If you could give me enough information to dig into this that would
be great. Otherwise I am going to have to proceed forward on the basis
that this is a testing robot failure, and that the people who maintain
the testing robot don't care enough to look after it.

Eric