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[Xen-devel] Re: [linux test] 6623: regressions - FAIL



Ian Jackson writes ("[linux test] 6623: regressions - FAIL"):
>  test-amd64-i386-xl-credit2    9 guest-start           fail REGR. vs. 6615

Scheduler-related Xen crash, in xen-unstable 23073:3831bd253e02,
during vcpu migration.  I thought we'd nailed all of these by now ?

Ian.

Mar 24 03:54:19.911141 (XEN) Xen BUG at sched_credit2.c:811
Mar 24 03:54:20.347779 (XEN) ----[ Xen-4.2-unstable  x86_64  debug=y  Not 
tainted ]----
Mar 24 03:54:20.347829 (XEN) CPU:    3
Mar 24 03:54:20.355774 (XEN) RIP:    e008:[<ffff82c4801199ab>] 
__runq_deassign+0x25/0x6f
Mar 24 03:54:20.355798 (XEN) RFLAGS: 0000000000010002   CONTEXT: hypervisor
Mar 24 03:54:20.370765 (XEN) rax: 0000000000000002   rbx: ffff83022f69eed0   
rcx: ffff8302259f82d0
Mar 24 03:54:20.370800 (XEN) rdx: 0000000000000080   rsi: ffff8300cf2e2000   
rdi: ffff83022f69eed0
Mar 24 03:54:20.378776 (XEN) rbp: ffff8302259afcc8   rsp: ffff8302259afcc0   
r8:  ffff83022f69eed0
Mar 24 03:54:20.387765 (XEN) r9:  000000000000003e   r10: ffff82c480217440   
r11: 0000000000000000
Mar 24 03:54:20.387799 (XEN) r12: 0000000000000080   r13: ffff8302259f824c   
r14: 000000000000b99c
Mar 24 03:54:20.395777 (XEN) r15: ffff8302259f8010   cr0: 000000008005003b   
cr4: 00000000000026f0
Mar 24 03:54:20.410767 (XEN) cr3: 000000022f8a3000   cr2: 00000000c01d1ff8
Mar 24 03:54:20.410796 (XEN) ds: e021   es: e021   fs: 00d8   gs: 0000   ss: 
0000   cs: e008
Mar 24 03:54:20.418768 (XEN) Xen stack trace from rsp=ffff8302259afcc0:
Mar 24 03:54:20.418796 (XEN)    0000000000000000 ffff8302259afcd8 
ffff82c480119a39 ffff8302259afd48
Mar 24 03:54:20.427772 (XEN)    ffff82c48011adfd ffff8302259afd18 
ffff8300cf2e2000 ffff82c4802441c0
Mar 24 03:54:20.435763 (XEN)    ffff83022f69eed0 00000000802441c0 
ffff8302259f8010 ffff8302259f8238
Mar 24 03:54:20.435798 (XEN)    ffff8302259f82d4 ffff8302259f82d4 
0000000000000003 ffff8302259f82d4
Mar 24 03:54:20.447774 (XEN)    0000000000000000 ffff8302259afdc8 
ffff82c480122d23 0000000000000086
Mar 24 03:54:20.455767 (XEN)    ffff82c4802d0b40 ffff82c4802d0b40 
ffff82c4802d0b40 ffff82c4802d0b40
Mar 24 03:54:20.455807 (XEN)    ffff8300cf2e2000 0000000000000246 
0000000000000000 ffff8300cf2e2168
Mar 24 03:54:20.467773 (XEN)    ffff8302259f82d4 ffff82c4802d0b40 
ffff8300cf2e2000 ffff82c4802c0100
Mar 24 03:54:20.478767 (XEN)    ffff8300cf2e2000 ffff8302259afdf8 
ffff82c480123230 0000000000000000
Mar 24 03:54:20.478802 (XEN)    0000000000000000 0000000000000000 
ffff83022f69c000 ffff8302259afe78
Mar 24 03:54:20.490777 (XEN)    ffff82c48010499d ffff8302259afe38 
ffff82c480106f4d ffff8302259afe28
Mar 24 03:54:20.498767 (XEN)    ffff8300cf2e2000 ffffffffffffffda 
00000000c167fe4c ffff8302259afef8
Mar 24 03:54:20.498803 (XEN)    ffff82c480107bb9 ffff8302259afe58 
00000000ffffffea 0000000000000000
Mar 24 03:54:20.510770 (XEN)    0000000000000000 ffff83022f69c000 
0000000000000007 ffff8302259afef8
Mar 24 03:54:20.518775 (XEN)    ffff82c4801381f8 ffff8302259e8840 
ffff8300cf2e2000 0000000000000003
Mar 24 03:54:20.518815 (XEN)    ffff82c4802b0880 ffff830200000002 
ffffffffffffffff ffff8302259afef8
Mar 24 03:54:20.523781 (XEN)    ffff82c48012387f ffff82c480159ba8 
ffff8300cf2e2000 0000000000000000
Mar 24 03:54:20.538773 (XEN)    0000000000000000 0000000000000000 
0000000000000000 00007cfdda6500c7
Mar 24 03:54:20.546760 (XEN)    ffff82c48020e591 00000000c1002307 
0000000000000018 0000000000000000
Mar 24 03:54:20.546795 (XEN)    0000000000000000 0000000000000000 
0000000000000000 00000000c167ffac
Mar 24 03:54:20.555769 (XEN) Xen call trace:
Mar 24 03:54:20.555790 (XEN)    [<ffff82c4801199ab>] __runq_deassign+0x25/0x6f
Mar 24 03:54:20.563762 (XEN)    [<ffff82c480119a39>] runq_deassign+0x44/0x46
Mar 24 03:54:20.563792 (XEN)    [<ffff82c48011adfd>] csched_cpu_pick+0x29f/0x2b0
Mar 24 03:54:20.575758 (XEN)    [<ffff82c480122d23>] vcpu_migrate+0x171/0x2a7
Mar 24 03:54:20.575780 (XEN)    [<ffff82c480123230>] 
vcpu_force_reschedule+0xac/0xc1
Mar 24 03:54:20.583758 (XEN)    [<ffff82c48010499d>] do_vcpu_op+0x2ca/0x446
Mar 24 03:54:20.583779 (XEN)    [<ffff82c4801381f8>] compat_vcpu_op+0x158/0x280
Mar 24 03:54:20.598766 (XEN)    [<ffff82c48020e591>] compat_hypercall+0xa1/0xfa
Mar 24 03:54:20.598798 (XEN)
Mar 24 03:54:20.598818 (XEN)
Mar 24 03:54:20.598828 (XEN) ****************************************
Mar 24 03:54:20.603767 (XEN) Panic on CPU 3:
Mar 24 03:54:20.603787 (XEN) Xen BUG at sched_credit2.c:811
Mar 24 03:54:20.603815 (XEN) ****************************************
Mar 24 03:54:20.611775 (XEN)
Mar 24 03:54:20.611792 (XEN) Reboot in five seconds...

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