Re: [Xen-devel] vcpu migration Xen crash in 4.1

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> On 18.03.11 at 17:48, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> wrote:
> I'm having numerous watchdog-induced crashes with Xen 4.1.  Here is an
> example.  This happens on either of my two Dell R310s but not
> (apparently) on other machines.  Here is an example:

Looks like 4.1 is missing -unstable 23043:3caed2112c65.

Jan

> Mar 18 16:22:52.141183 (XEN) Watchdog timer detects that CPU3 is stuck!
> Mar 18 16:23:58.689745 (XEN) ----[ Xen-4.1.0-rc7  x86_32p  debug=n  Not 
> tainted ]----
> Mar 18 16:23:58.689846 (XEN) CPU:    3
> Mar 18 16:23:58.704363 (XEN) EIP:    e008:[<ff116120>] 
> _csched_cpu_pick+0xc0/0x3e0
> Mar 18 16:23:58.704434 (XEN) EFLAGS: 00000046   CONTEXT: hypervisor
> Mar 18 16:23:58.709625 (XEN) eax: 00000000   ebx: 00000002   ecx: 00000004   
> edx: 00000004
> Mar 18 16:23:58.709690 (XEN) esi: ff2e7e6c   edi: ff2e7e7c   ebp: 00000006   
> esp: ff2e7e40
> Mar 18 16:23:58.721258 (XEN) cr0: 8005003b   cr4: 000026f0   cr3: 00286c80   
> cr2: dd8f64b4
> Mar 18 16:23:58.721325 (XEN) ds: e010   es: e010   fs: 0000   gs: 0033   ss: 
> e010   cs: e008
> Mar 18 16:23:58.729310 (XEN) Xen stack trace from esp=ff2e7e40:
> Mar 18 16:23:58.729368 (XEN)    ff2e7e9c ff2e7e9c ff2e7e6c 00000080 00000080 
> 0000e010 00000000 ff2723b0
> Mar 18 16:23:58.741268 (XEN)    01000000 00000005 00000001 000000c0 00000000 
> 00000000 00000000 00000030
> Mar 18 16:23:58.749754 (XEN)    00000000 00000000 00000000 000000fb 00000000 
> 00000000 00000000 00000003
> Mar 18 16:23:58.749825 (XEN)    00000000 00000000 00000000 ff2e1024 ff2ec024 
> 00000003 00000000 ff11f6e6
> Mar 18 16:23:58.761276 (XEN)    ff20b9a0 ff286000 ff271820 ff271820 ff286000 
> 00000206 ff2e1024 ff2ea000
> Mar 18 16:23:58.769645 (XEN)    ff2e7efc 00000003 ff286000 ff14ab79 ff286000 
> 00000080 00000000 00000000
> Mar 18 16:23:58.781243 (XEN)    00000000 00000000 00000000 ff2ea000 ff286000 
> 00000003 00000000 ff11edda
> Mar 18 16:23:58.781313 (XEN)    ff286000 ff2ea000 6a1a3faa 00000018 00000000 
> ff2ec030 00000002 00000018
> Mar 18 16:23:58.789653 (XEN)    ff2ec030 6a1e908d 6a1a3faa 00000018 ff2ec080 
> ff2ec020 ff286150 c9c1c070
> Mar 18 16:23:58.801316 (XEN)    ff271900 6a1a36c7 ff2ea000 ffffffff ffffffff 
> ff271900 ffbeec08 00000003
> Mar 18 16:23:58.801400 (XEN)    ffffffff ff2e7fb0 bf819718 ff120244 00000003 
> ff1db38b ff145bf4 00000000
> Mar 18 16:23:58.809665 (XEN)    ff286000 0000007b 0000007b ff1db406 00000000 
> 00000011 00005949 00000001
> Mar 18 16:23:58.821253 (XEN)    00000000 bf819718 00000000 00f90000 08052958 
> 00000073 00000283 bf819718
> Mar 18 16:23:58.829247 (XEN)    0000007b 0000007b 0000007b 00000000 00000033 
> 00000003 ff2ea000 0007a800
> Mar 18 16:23:58.829318 (XEN) Xen call trace:
> Mar 18 16:23:58.837508 (XEN)    [<ff116120>] _csched_cpu_pick+0xc0/0x3e0
> Mar 18 16:23:58.837566 (XEN)    [<ff11f6e6>] vcpu_migrate+0xd6/0x200
> Mar 18 16:23:58.837623 (XEN)    [<ff14ab79>] context_switch+0xd9/0x1d0
> Mar 18 16:23:58.849259 (XEN)    [<ff11edda>] schedule+0x28a/0x610
> Mar 18 16:23:58.849314 (XEN)    [<ff120244>] __do_softirq+0x54/0x90
> Mar 18 16:23:58.857446 (XEN)    [<ff1db38b>] hypercall+0x8b/0x92
> Mar 18 16:23:58.857499 (XEN)    [<ff145bf4>] 
> smp_apic_timer_interrupt+0x44/0x70
> Mar 18 16:23:58.857558 (XEN)    [<ff1db406>] process_softirqs+0x6/0x10
> Mar 18 16:23:58.869265 (XEN)    
> Mar 18 16:23:58.869303 (XEN) 
> Mar 18 16:23:58.869337 (XEN) ****************************************
> Mar 18 16:23:58.869389 (XEN) Panic on CPU 3:
> Mar 18 16:23:58.877386 (XEN) FATAL TRAP: vector = 2 (nmi)
> Mar 18 16:23:58.877436 (XEN) [error_code=0000] , IN INTERRUPT CONTEXT
> Mar 18 16:23:58.877490 (XEN) ****************************************
> Mar 18 16:23:58.885257 (XEN) 
> Mar 18 16:23:58.885293 (XEN) Reboot in five seconds...
> 
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