Messages in this thread | | | Date | Fri, 28 Apr 2017 10:44:26 +0800 | From | Ye Xiaolong <> | Subject | Re: [lkp-robot] [perf] 924726b2b5: double_fault:#[##] |
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On 04/27, Sebastian Andrzej Siewior wrote: >On 2017-04-27 10:58:36 [+0800], kernel test robot wrote: >> >> FYI, we noticed the following commit: >> >> commit: 924726b2b5e5000dfb8eb6032651baed1b1bdc6c ("perf: Cure hotplug lock ordering issues") >> https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git smp/hotplug > >I can't find that commit in tip so I used > 14aff62ede39 ("perf: Cure hotplug lock ordering issues") > >which should be the same thing.
Yes, git patch-id tells they are the same thing.
> >> in testcase: boot >> >> on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M > >I booted this. I grabbed the command line the yaml file attached and >quantal-core-x86_64.cgz from github. > >> [ 203.023547] mmap: trinity-c0 (2509) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. >> [child0:2509] uid changed! Was: 0, now 252 >> [child1:2511] child exiting. >> Bailing main loop. Exit reason: UID changed. >> [watchdog] [2502] Watchdog exiting >> [ 204.078036] double fault: 0000 [#1] SMP DEBUG_PAGEALLOC >> [ 204.078036] double fault: 0000 [#1] SMP DEBUG_PAGEALLOC > >I don't see that. >
I can't reproduce it either after I rebuilt kernel for commit 14aff62ede39 for 6 times test.
>> To reproduce: >> >> git clone https://github.com/01org/lkp-tests.git >> cd lkp-tests >> bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email > >I tried that, too. The difference between running qemu manually and this >seems that the manual approach runs the kernel a few times while this >aborts after the first run. I attached my manual run. It looks similar >(including the trinity segfault) but the kernels runs smooth. > >You don't seem to inject / load the kernels modules you compile.
Yes, as 0day built a large number of kernel everyday, we won't upload kernel images and modules to github, it depends user to generate and append it to initrd.
Thanks, Xiaolong
> >> Thanks, >> Xiaolong > >Sebastian
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