Re: [xen-unstable test] 102372: tolerable FAIL

From: Dario Faggioli <dario.faggioli@citrix.com>
To: osstest service owner <osstest-admin@xenproject.org>,
	xen-devel@lists.xensource.com
Cc: George Dunlap <George.Dunlap@citrix.com>, Wei Liu <wei.liu@citrix.com>
Subject: Re: [xen-unstable test] 102372: tolerable FAIL
Date: Sat, 19 Nov 2016 01:05:21 +0100	[thread overview]
Message-ID: <1479513921.3832.97.camel@citrix.com> (raw)
In-Reply-To: <osstest-102372-mainreport@xen.org>

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On Fri, 2016-11-18 at 12:55 +0000, osstest service owner wrote:
> flight 102372 xen-unstable real [real]
> http://logs.test-lab.xenproject.org/osstest/logs/102372/
> 
> Failures :-/ but no regressions.
> 
> Tests which are failing intermittently (not blocking):
>  test-armhf-armhf-xl-credit2  16 guest-start.2              fail pass
> in 102338
> 
This crashed with this:

Nov 18 06:36:23.857699 (XEN)    c0b884a0 0030400e 00000000 4005fe00 4005fefc 4005ff1c 002d5ef4 00000001
Nov 18 06:36:23.864822 (XEN)    0030d694 002d1f00 00000000 00284880 dabcda80 4005ff3c 002338d4 0030d694
Nov 18 06:36:23.871821 (XEN)    002d1f00 00000000 db050000 c0b884a0 c0b88538 4005ff44 00233968 4005ff54
Nov 18 06:36:23.878950 (XEN)    00261084 dabcda80 00000000 4005ff58 002649d0 20070113 00000cc9 dabcda80
Nov 18 06:36:23.886071 (XEN)    00000cc8 dabcda80 00000000 00000000 db050000 c0b884a0 c0b88538 dabcda80
Nov 18 06:36:23.893195 (XEN)    dabcdf34 00000000 ffffffff 0002e4ad c082d474 20070193 c2c2c2c2 be866bc4
Nov 18 06:36:23.900321 (XEN)    c0c5f480 c02130c0 db083de0 c0279614 c0c5f48c c0213240 c0c5f498 c02132e0
Nov 18 06:36:23.907444 (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 c2c2c2c2 60070013
Nov 18 06:36:23.914577 (XEN)    00070193 800f0093 60070193 00000000 c2c2c2c2 c2c2c2c2 c2c2c2c2
Nov 18 06:36:23.920830 (XEN) Xen call trace:
Nov 18 06:36:23.922820 (XEN)    [<0022af78>] sched_credit2.c#runq_tickle+0x3e8/0x61c (PC)
Nov 18 06:36:23.928698 (XEN)    [<0022aedc>] sched_credit2.c#runq_tickle+0x34c/0x61c (LR)
Nov 18 06:36:23.934575 (XEN)    [<0022b644>] sched_credit2.c#csched2_context_saved+0x128/0x1a4
Nov 18 06:36:23.940944 (XEN)    [<0023303c>] context_saved+0x7c/0xa4
Nov 18 06:36:23.945084 (XEN)    [<0024f660>] domain.c#schedule_tail+0x2b4/0x308
Nov 18 06:36:23.950076 (XEN)    [<0024faac>] context_switch+0x80/0x94
Nov 18 06:36:23.954216 (XEN)    [<0022ff48>] schedule.c#schedule+0x76c/0x7ec
Nov 18 06:36:23.958951 (XEN)    [<002338d4>] softirq.c#__do_softirq+0xcc/0xec
Nov 18 06:36:23.963821 (XEN)    [<00233968>] do_softirq+0x18/0x28
Nov 18 06:36:23.967697 (XEN)    [<00261084>] leave_hypervisor_tail+0x58/0x88
Nov 18 06:36:23.972444 (XEN)    [<002649d0>] entry.o#return_to_guest+0xc/0xb8
Nov 18 06:36:23.977324 (XEN) 
Nov 18 06:36:23.977945 (XEN) 
Nov 18 06:36:23.978695 (XEN) ****************************************
Nov 18 06:36:23.982824 (XEN) Panic on CPU 1:
Nov 18 06:36:23.984822 (XEN) Assertion '!is_idle_vcpu(cur->vcpu)' failed at sched_credit2.c:1009
Nov 18 06:36:23.991326 (XEN) ****************************************

I think know what the problem is.

I will have a look on Monday. It should be easy enough to fix.

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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