Re: [Xen-devel] Xen unstable crash

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

If you can reproduce this bug, it's worth trying to revert c/s 19285 and try
again:
 hg export 19285 | patch -Rp1
To put the tree back into clean state afterwards:
 hg diff | patch -Rp1

If the bug still reproduces another possible culprit is c/s 19317.

 -- Keir

On 13/03/2009 12:55, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:

> Thanks for the log, seems the count info  is -1UL in such situation, I think
> it may because some change to count_info, and I will try to check it.
> 
> Thanks
> Yunhong Jiang
> 
>> -----Original Message-----
>> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
>> Sent: 2009年3月13日 18:39
>> To: Andrew Lyon; Xen-devel
>> Cc: Jiang, Yunhong
>> Subject: Re: [Xen-devel] Xen unstable crash
>> 
>> Thanks. Our testing has showed this up too. The cause hasn't
>> been tracked
>> down yet unfortunately.
>> 
>> -- Keir
>> 
>> On 13/03/2009 10:33, "Andrew Lyon" <andrew.lyon@xxxxxxxxx> wrote:
>> 
>>> Hi,
>>> 
>>> Running Xen unstable on a Dell Optiplex 755, after starting and
>>> shutting down a few hvm's the system crashes with the following
>>> message:
>>> 
>>> This is with Xensource 2.6.18.8 kernel:
>>> 
>>> (XEN) ** page_alloc.c:407 -- 449/512 ffffffffffffffff
>>> (XEN) Xen BUG at page_alloc.c:409
>>> (XEN) ----[ Xen-3.4-unstable  x86_64  debug=y  Not tainted ]----
>>> (XEN) CPU:    1
>>> (XEN) RIP:    e008:[<ffff828c8011206f>] alloc_heap_pages+0x35a/0x486
>>> (XEN) RFLAGS: 0000000000010286   CONTEXT: hypervisor
>>> (XEN) rax: 0000000000000000   rbx: ffff82840199b820   rcx:
>> 0000000000000001
>>> (XEN) rdx: 000000000000000a   rsi: 000000000000000a   rdi:
>> ffff828c801fedec
>>> (XEN) rbp: ffff830127fdfcb8   rsp: ffff830127fdfc58   r8:
>> 0000000000000004
>>> (XEN) r9:  0000000000000004   r10: 0000000000000010   r11:
>> 0000000000000010
>>> (XEN) r12: ffff828401998000   r13: 00000000000001c1   r14:
>> 0000000000000200
>>> (XEN) r15: 0000000000000000   cr0: 0000000080050033   cr4:
>> 00000000000026f0
>>> (XEN) cr3: 000000011f46e000   cr2: 000000000133a000
>>> (XEN) ds: 0000   es: 0000   fs: 0063   gs: 0000   ss: e010   cs: e008
>>> (XEN) Xen stack trace from rsp=ffff830127fdfc58:
>>> (XEN)    0000000900000001 0000000000000098 0000000000000200
>> 0000000100000001
>>> (XEN)    ffff830127fdfcf8 ffff828c801a5c68 ffff830127fdfccc
>> ffff830127fdff28
>>> (XEN)    0000000000000027 0000000000000000 ffff83011d9c4000
>> 0000000000000000
>>> (XEN)    ffff830127fdfcf8 ffff828c8011383b 0100000400000009
>> ffff830127fdff28
>>> (XEN)    0000000000000006 0000000044803760 00000000448037c0
>> 0000000000000000
>>> (XEN)    ffff830127fdff08 ffff828c80110591 0000000000000000
>> 0000000000000000
>>> (XEN)    0000000000000000 0000000000000000 0000000000000000
>> 0000000000000000
>>> (XEN)    0000000000000200 0000000000000001 0000000000000000
>> 0000000000000001
>>> (XEN)    ffff828c80214d00 ffff830127fdfda8 ffff830127fdfde8
>> ffff828c80115811
>>> (XEN)    0000000000000001 ffff828c80151777 ffff830127fdfda8
>> ffff828c8013c559
>>> (XEN)    0000000000000004 0000020000000001 ffff830127fdfdb8
>> ffff828c8013c5f6
>>> (XEN)    ffff830127fdfde8 ffff828c80107247 ffff830127fdfde8
>> ffff828c8011d73e
>>> (XEN)    0000000000000001 0000000000000000 ffff830127fdfe28
>> ffff83011d9c4000
>>> (XEN)    0000000000000282 0000000400000009 0000000044803750
>> ffff8300cfdfc030
>>> (XEN)    ffff830127ff1f28 0000000000000002 ffff830127fdfe58
>> ffff828c80119cb7
>>> (XEN)    00007cfed8020197 ffff828c80239180 0000000000000002
>> ffff830127fdfe68
>>> (XEN)    ffff828c8011c0c8 ffff828c80239180 ffff830127fdfe78
>> ffff828c8014c173
>>> (XEN)    ffff830127fdfe98 ffff828c801d166d ffff830127fdfe98
>> 00000000000cce00
>>> (XEN)    000000000001f600 ffff828c801d2063 0000000044803750
>> 0000000000000004
>>> (XEN)    0000000000000009 000000000000000a 00002b820b4a5eb7
>> ffff83011d9c4000
>>> (XEN) Xen call trace:
>>> (XEN)    [<ffff828c8011206f>] alloc_heap_pages+0x35a/0x486
>>> (XEN)    [<ffff828c8011383b>] alloc_domheap_pages+0x128/0x17b
>>> (XEN)    [<ffff828c80110591>] do_memory_op+0x988/0x17a7
>>> (XEN)    [<ffff828c801cf1bf>] syscall_enter+0xef/0x149
>>> (XEN)
>>> (XEN)
>>> (XEN) ****************************************
>>> (XEN) Panic on CPU 1:
>>> (XEN) Xen BUG at page_alloc.c:409
>>> (XEN) ****************************************
>>> (XEN)
>>> 
>>> And here again running opensuse 2.6.27 kernel:
>>> 
>>> (XEN) ** page_alloc.c:534 -- 0/1 ffffffffffffffff
>>> (XEN) Xen BUG at page_alloc.c:536
>>> (XEN) ----[ Xen-3.4-unstable  x86_64  debug=y  Not tainted ]----
>>> (XEN) CPU:    1
>>> (XEN) RIP:    e008:[<ffff828c80112d77>] free_heap_pages+0x12f/0x4b8
>>> (XEN) RFLAGS: 0000000000010206   CONTEXT: hypervisor
>>> (XEN) rax: 0000000000000000   rbx: ffff82840236e3e0   rcx:
>> 0000000000000001
>>> (XEN) rdx: ffffffffffffffff   rsi: 000000000000000a   rdi:
>> ffff828c801fedec
>>> (XEN) rbp: ffff830127fdfe90   rsp: ffff830127fdfe40   r8:
>> 0000000000000004
>>> (XEN) r9:  0000000000000004   r10: 0000000000000010   r11:
>> 0000000000000010
>>> (XEN) r12: ffff82840236e3e0   r13: 0000000000000000   r14:
>> 0000000000000000
>>> (XEN) r15: 0080000000000000   cr0: 000000008005003b   cr4:
>> 00000000000026f0
>>> (XEN) cr3: 00000000bf1b2000   cr2: 00000000004878d5
>>> (XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e010   cs: e008
>>> (XEN) Xen stack trace from rsp=ffff830127fdfe40:
>>> (XEN)    0000000000000001 ffff82840236e3e0 0000000127fdfe90
>> 0000000000000001
>>> (XEN)    0000000000000000 0000000000000200 c2c2c2c2c2c2c2c2
>> ffff82840236e3c0
>>> (XEN)    ffff82840236e2e0 ffff830000000000 ffff830127fdfed0
>> ffff828c8011329a
>>> (XEN)    000000985dfe4f8c 0000000000000001 ffff830127fdff28
>> ffff828c80297880
>>> (XEN)    0000000000000002 ffff828c80239100 ffff830127fdff00
>> ffff828c8011ba21
>>> (XEN)    ffff8800e9be5d80 ffff830127fdff28 ffff828c802375b0
>> ffff8300cee8a000
>>> (XEN)    ffff830127fdff20 ffff828c8013ca78 0000000000000001
>> ffff8300cfaee000
>>> (XEN)    ffff830127fdfda8 ffff8800e9be5d80 ffff8800ea1006c0
>> ffffffff8070f1c0
>>> (XEN)    000000000000008f ffff8800c4df3c98 0000000000000184
>> 0000000000000246
>>> (XEN)    ffff8800c4df3d68 ffff8800eab76b00 0000000000000000
>> 0000000000000000
>>> (XEN)    ffffffff802073aa 0000000000000009 00000000deadbeef
>> 00000000deadbeef
>>> (XEN)    0000010000000000 ffffffff802073aa 000000000000e033
>> 0000000000000246
>>> (XEN)    ffff8800c4df3c60 000000000000e02b 7f766dfbff79beef
>> fddffff4f3b9beef
>>> (XEN)    008488008022beef 0001000a0a03beef f7f5ff7b00000001
>> ffff8300cfaee000
>>> (XEN) Xen call trace:
>>> (XEN)    [<ffff828c80112d77>] free_heap_pages+0x12f/0x4b8
>>> (XEN)    [<ffff828c8011329a>] page_scrub_softirq+0x19a/0x23c
>>> (XEN)    [<ffff828c8011ba21>] do_softirq+0x6a/0x77
>>> (XEN)    [<ffff828c8013ca78>] idle_loop+0x9d/0x9f
>>> (XEN)
>>> (XEN)
>>> (XEN) ****************************************
>>> (XEN) Panic on CPU 1:
>>> (XEN) Xen BUG at page_alloc.c:536
>>> (XEN) ****************************************
>>> (XEN)
>>> (XEN) Reboot in five seconds...
>>> 
>>> 
>>> Andy
>>> 
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-devel
>> 
>> 
>> 



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