[Xen-devel] Re: [xen-unstable bisection] complete test-i386-i386-pair

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

xen.org writes ("[xen-unstable bisection] complete test-i386-i386-pair"):
> *** Found and reproduced problem changeset ***
> 
>   Bug is in tree:  xen http://xenbits.xen.org/staging/xen-unstable.hg
>   Bug introduced:  1c8789852eaf
>   Bug not present: 8269826353d8
> 
> 
>   changeset:   23990:1c8789852eaf
>   user:        Jan Beulich <jbeulich@xxxxxxxx>
>   date:        Fri Oct 21 09:44:47 2011 +0200
>       
>       x86/hpet: allocate CPU masks dynamically
>       
>       Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>       Acked-by: Keir Fraser <keir@xxxxxxx>

Looking at the log, it seems that both the source and destination host
for the migration test crashed.

http://www.chiark.greenend.org.uk/~xensrcts/logs/9471/test-i386-i386-pair/info.html

Oct 23 01:36:23.433334 (XEN) ----[ Xen-4.2-unstable  x86_32p  debug=y  Not 
tainted ]----
Oct 23 01:36:44.057278 (XEN) CPU:    0
Oct 23 01:36:44.057308 (XEN) EIP:    e008:[<ff146151>] 
__find_first_bit+0x1d/0x3c
Oct 23 01:36:44.069240 (XEN) EFLAGS: 00010246   CONTEXT: hypervisor
Oct 23 01:36:44.069273 (XEN) eax: 00000000   ebx: 00000000   ecx: 00000001   
edx: 00000045
Oct 23 01:36:44.077245 (XEN) esi: ff2180e0   edi: 00000000   ebp: ff253e34   
esp: ff253e2c
Oct 23 01:36:44.077282 (XEN) cr0: 8005003b   cr4: 000426f0   cr3: 00bdf220   
cr2: 00000000
Oct 23 01:36:44.089247 (XEN) ds: e010   es: e010   fs: 00d8   gs: 0000   ss: 
e010   cs: e008
Oct 23 01:36:44.097240 (XEN) Xen stack trace from esp=ff253e2c:
Oct 23 01:36:44.097271 (XEN)    00000002 ffbe4080 ff253e94 ff17fccc 00000000 
00000002 bbcbc1c2 00000045
Oct 23 01:36:44.109238 (XEN)    ff253fb0 ffbe4094 f3520d09 00000045 ff253ebc 
ff11649d ffbfdddc ff27f180
Oct 23 01:36:44.109278 (XEN)    00000000 00000000 00000000 00000000 00989680 
ff27fa80 bbcbc1c2 00000000
Oct 23 01:36:44.117253 (XEN)    ff2180e0 ff290080 ff253eb4 ff17f3e5 ffbe4080 
ff14539a ff29d000 ff253f58
Oct 23 01:36:44.129244 (XEN)    00000002 ff253ebc ff253ee4 ff1695e0 ff290080 
ff290080 ff253ee4 ff14fff5
Oct 23 01:36:44.129284 (XEN)    ff290080 00000000 00000082 ff253ee4 00000000 
ff2180e0 ff253f54 ff154841
Oct 23 01:36:44.137258 (XEN)    00000000 00000000 ff253f60 00000045 00000000 
ffbdf000 0000001d ff27f020
Oct 23 01:36:44.149240 (XEN)    ffbdf0c8 ff27f100 f30ab8f7 ff290094 00000000 
00000000 00000000 ffbd9a80
Oct 23 01:36:44.157243 (XEN)    ff27f100 ff264200 ffffffff ff253fb0 ff253f7c 
ff120011 00000000 ff253fb0
Oct 23 01:36:44.157281 (XEN)    0000e010 0000e010 00dac08b ff14cf86 ff253f60 
ff253fb0 ff27f100 00000000
Oct 23 01:36:44.169273 (XEN)    ff253fb0 ffffffff ff253f8c ff27f080 00f00000 
ff14915d 0000e008 00000246
Oct 23 01:36:44.177260 (XEN)    ff253fac ff14ab2c ff253fb8 ff253fa8 ff120083 
deadbeef ff29d000 ffbdf000
Oct 23 01:36:44.177301 (XEN)    ff253e38 deadbeef deadbeef 00000000 00000000 
c166d350 c1663f94 00000000
Oct 23 01:36:44.189249 (XEN)    00f90000 c10023a7 00000061 00000246 c1663f84 
00000069 0000007b 0000007b
Oct 23 01:36:44.197254 (XEN)    000000d8 00000000 00000000 ff29d000 00000000
Oct 23 01:36:44.197285 (XEN) Xen call trace:
Oct 23 01:36:44.209234 (XEN)    [<ff146151>] __find_first_bit+0x1d/0x3c
Oct 23 01:36:44.209267 (XEN)    [<ff17fccc>] handle_hpet_broadcast+0x87/0x263
Oct 23 01:36:44.217247 (XEN)    [<ff17f3e5>] hpet_legacy_irq_tick+0x37/0x45
Oct 23 01:36:44.217281 (XEN)    [<ff1695e0>] timer_interrupt+0x23/0x194
Oct 23 01:36:44.217314 (XEN)    [<ff154841>] do_IRQ+0x4c8/0x573
Oct 23 01:36:44.229241 (XEN)    [<ff14cf86>] common_interrupt+0x56/0x60
Oct 23 01:36:44.229274 (XEN)    [<ff14915d>] default_idle+0x5f/0x64
Oct 23 01:36:44.237248 (XEN)    [<ff14ab2c>] idle_loop+0x41/0x51
Oct 23 01:36:44.237280 (XEN)    
Oct 23 01:36:44.237302 (XEN) Pagetable walk from 00000000:
Oct 23 01:36:44.237334 (XEN)  L3[0x000] = 0000000123a91001 0001bf95
Oct 23 01:36:44.249238 (XEN)  L2[0x000] = 0000000000000000 ffffffff 
Oct 23 01:36:44.249269 (XEN) 
Oct 23 01:36:44.249290 (XEN) ****************************************
Oct 23 01:36:44.257243 (XEN) Panic on CPU 0:
Oct 23 01:36:44.257269 (XEN) FATAL PAGE FAULT
Oct 23 01:36:44.257294 (XEN) [error_code=0000]
Oct 23 01:36:44.257325 (XEN) Faulting linear address: 00000000
Oct 23 01:36:44.269239 (XEN) ****************************************
Oct 23 01:36:44.269269 (XEN) 
Oct 23 01:36:44.269290 (XEN) Reboot in five seconds...

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