linux-kernel - Re: [lkp] [x86,vdso] 6c5548f6d7: autotest.signaltest.fail

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Message-ID: <CALCETrVpEmE4ZOqocbs5u7B7tkKYAhNV8-j_-OamMYadTuXnyw@mail.gmail.com>
Date:	Tue, 29 Dec 2015 05:15:56 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	kernel test robot <ying.huang@...ux.intel.com>
Cc:	Andy Lutomirski <luto@...nel.org>, LKP <lkp@...org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [lkp] [x86,vdso] 6c5548f6d7: autotest.signaltest.fail

On Mon, Dec 28, 2015 at 7:16 PM, kernel test robot
<ying.huang@...ux.intel.com> wrote:
> FYI, we noticed the below changes on
>
> https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/vdso
> commit 6c5548f6d716edd2e88add5e7826d15acae30108 ("x86,vdso: Use .fault instead of remap_pfn_range for the vvar mapping")

Nice catch!

I haven't reproduced this, but I think it's a race, and I updated the
branch with a fix.

--Andy

>
>
> 2015-12-28 18:41:40 client/autotest-local run signaltest
> 18:41:40 INFO | Writing results to /lkp/benchmarks/autotest/client/results/default
> 18:41:40 ERROR| Could not determine initlevel, assuming 2
> 18:41:40 INFO | START   ----    ----    timestamp=1451299300    localtime=Dec 28 18:41:40
> 18:41:40 INFO |         START   signaltest      signaltest      timestamp=1451299300    localtime=Dec 28 18:41:40
> 18:41:41 WARNI| Could not find GDB installed. Crash handling will operate with limited functionality
> 18:41:41 ERROR| [stderr] signaltest.c: In function 'signalthread':
> 18:41:41 ERROR| [stderr] signaltest.c:133:27: warning: null argument where non-null required (argument 1) [-Wnonnull]
> 18:41:41 ERROR| [stderr]     gettimeofday(0,(struct timezone *)1);
> 18:41:41 ERROR| [stderr]                            ^
> 18:41:41 ERROR| [stderr] signaltest.c:179:5: warning: null argument where non-null required (argument 1) [-Wnonnull]
> 18:41:41 ERROR| [stderr]      gettimeofday(0,0);
> 18:41:41 ERROR| [stderr]      ^
> 18:41:41 ERROR| Exception escaping from test:
> Traceback (most recent call last):
>   File "/lkp/benchmarks/autotest/client/shared/test.py", line 411, in _exec
>     _call_test_function(self.execute, *p_args, **p_dargs)
>   File "/lkp/benchmarks/autotest/client/shared/test.py", line 823, in _call_test_function
>     return func(*args, **dargs)
>   File "/lkp/benchmarks/autotest/client/tests/signaltest/signaltest.py", line 19, in execute
>     utils.system(self.srcdir + '/signaltest ' + args)
>   File "/lkp/benchmarks/autotest/client/shared/utils.py", line 1230, in system
>     verbose=verbose).exit_status
>   File "/lkp/benchmarks/autotest/client/shared/utils.py", line 916, in run
>     "Command returned non-zero exit status")
> CmdError: Command </lkp/benchmarks/autotest/client/tmp/signaltest/src/signaltest -t 10 -l 100000> failed, rc=-7, Command returned non-zero exit status
> * Command:
>     /lkp/benchmarks/autotest/client/tmp/signaltest/src/signaltest -t 10 -l
>     100000
> Exit status: -7
> Duration: 0.0431470870972
>
> 18:41:41 WARNI| Programs crashed during test execution
> 18:41:41 WARNI| Please verify /lkp/benchmarks/autotest/client/results/default/signaltest/debug/crash.signaltest.814 for more info
> 18:41:41 INFO | System log file not found (looked for ['/var/log/messages', '/var/log/syslog'])
> 18:41:41 ERROR| child process failed
> 18:41:41 INFO |                 ERROR   signaltest      signaltest      timestamp=1451299301    localtime=Dec 28 18:41:41       Command </lkp/benchmarks/autotest/client/tmp/signaltest/src/signaltest -t 10 -l 100000> failed, rc=-7, Command returned non-zero exit status
>   * Command:
>       /lkp/benchmarks/autotest/client/tmp/signaltest/src/signaltest -t 10 -l
>       100000
>   Exit status: -7
>   Duration: 0.0431470870972
>
> 18:41:41 INFO |         END ERROR       signaltest      signaltest      timestamp=1451299301    localtime=Dec 28 18:41:41
> 18:41:41 INFO | END GOOD        ----    ----    timestamp=1451299301    localtime=Dec 28 18:41:41
> 18:41:41 INFO | Report successfully generated at /lkp/benchmarks/autotest/client/results/default/job_report.html
>
>
>
> To reproduce:
>
>         git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
>         cd lkp-tests
>         bin/lkp install job.yaml  # job file is attached in this email
>         bin/lkp run     job.yaml
>
>
>
> Thanks,
> Ying Huang



-- 
Andy Lutomirski
AMA Capital Management, LLC
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