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Groups > linux.kernel > #1450625
| From | Fengguang Wu <fengguang.wu@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed |
| Date | 2016-07-26 16:40 +0200 |
| Message-ID | <rZbGy-36b-13@gated-at.bofh.it> (permalink) |
| References | <rYdho-8bU-39@gated-at.bofh.it> <rYTzZ-8r9-45@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi Eric,
Sorry for the delay!
On Mon, Jul 25, 2016 at 01:57:00PM -0500, Eric W. Biederman wrote:
>kernel test robot <xiaolong.ye@intel.com> 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?
It's a simple boot test with a quick trinity run. So there will be
some randomness in this test.
The "BUG: kernel test crashed" means the VM reboots by itself while
the trinity test is running. If the error message is "BUG: kernel boot
crashed" it'd mean VM abnormally reboots before any test is launched.
>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.
I queued more tests in various KVM instances and find the kernel test
crashes can also happen in the parent commit. So it looks like a false
report. Sorry for the noise!
81754357770ebd90 aeaa4a79ff6a5ed912b7362f20
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
5:100 0% 5:100 dmesg.BUG:kernel_test_crashed
:100 1% 1:100 dmesg.Mem-Info
:100 1% 1:100 dmesg.invoked_oom-killer:gfp_mask=0x
Regards,
Fengguang
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed Fengguang Wu <fengguang.wu@intel.com> - 2016-07-26 16:40 +0200
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed ebiederm@xmission.com (Eric W. Biederman) - 2016-07-26 17:10 +0200
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed Fengguang Wu <fengguang.wu@intel.com> - 2016-07-26 17:20 +0200
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed ebiederm@xmission.com (Eric W. Biederman) - 2016-07-26 22:10 +0200
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed Dave Jones <davej@codemonkey.org.uk> - 2016-07-26 23:20 +0200
Re: [LKP] More information please. Re: [fs] 54cc07a761: BUG: kernel test crashed Dave Jones <davej@codemonkey.org.uk> - 2016-07-26 23:20 +0200
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