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xen-devel
[Xen-devel] Dom0 Panics/lockups
Weird issue where on one of my hosts dom0 partially locks up. Whats weird
is that alot of things work still and all domU's are running fine. SSHD
locks up on dom0 and cannot be restarted a xm works fine too. Here is a
dump from dmesg that i think is what started the whole mess.
bwmonitor is a perl script i wrote that basically loops through all chains
(2 chains per domU) running ebtables -L <chain> grabs the rates and writes
them to a database, simple script... From what i can tell this dump looks
like it may be a issue with xen and ebtables?
------------[ cut here ]------------
kernel BUG at arch/i386/mm/pgtable-xen.c:306!
invalid opcode: 0000 [#88]
SMP
Modules linked in: ebt_arp ebt_ip xt_physdev iptable_filter ip_tables
x_tables ebtable_filter ebtables ipv6 binfmt_misc video thermal processor
fan button tery ac ehci_hcd e1000 floppy dm_snapshot dm_zero dm_mirror ext3
mbcache jbd dm_mod 3w_9xxx sd_mod scsi_mod
CPU: 0
EIP: 0061:[<c0111ab5>] Not tainted VLI
EFLAGS: 00010282 (2.6.16-xen0 #2)
EIP is at pgd_ctor+0x30/0x3a
eax: fffffff4 ebx: 00000001 ecx: 00000001 edx: 00000000
esi: c0741ec0 edi: dbde65bc ebp: eaad7dc8 esp: eaad7dbc
ds: 007b es: 007b ss: 0069
Process bwmonitor (pid: 25477, threadinfo=eaad6000 task=e25f4a90)
Stack: <0>d37f0000 00000000 00000020 eaad7de8 c015b53e d37f0000 c0741ec0
00000001
dbde65a0 d37f0000 c073ff00 eaad7e1c c015b749 c0741ec0 dbde65a0
00000001
000000d0 c073ff2c 00000001 000000d0 00000000 ebc30c80 c073ff10
0000000c
Call Trace:
[<c01051c8>] show_stack_log_lvl+0xaa/0xdf
[<c01053d2>] show_registers+0x193/0x20b
[<c01055db>] die+0x10e/0x1a4
[<c01056ef>] do_trap+0x7e/0xb4
[<c0105a25>] do_invalid_op+0xb5/0xbf
[<c0104e37>] error_code+0x2b/0x30
[<c015b53e>] cache_init_objs+0x4f/0x77
[<c015b749>] cache_grow+0x133/0x1ce
[<c015b9ba>] cache_alloc_refill+0x1d6/0x21b
[<c015bc18>] kmem_cache_alloc+0x86/0x8a
[<c0111b03>] pgd_alloc+0x1e/0x315
[<c011ae6d>] mm_init+0x88/0xb3
[<c011b0b8>] dup_mm+0x58/0x311
[<c011b3d4>] copy_mm+0x63/0x82
[<c011bce0>] copy_process+0x3d9/0xe11
[<c011c812>] do_fork+0x69/0x195
[<c010387b>] sys_clone+0x3b/0x3d
[<c0104ca5>] syscall_call+0x7/0xb
Code: 0c 80 3d 84 f3 39 c0 00 74 02 c9 c3 c7 44 24 08 20 00 00 00 c7 44 24
04 00 00 00 00 8b 45 08 89 04 24 e8 ae 39 00 00 85 c0 74 df
c0 c9 c3 55 89 e5 83 ec 08 80 3d 84 f3 39
<0>------------[ cut here ]------------
kernel BUG at arch/i386/mm/pgtable-xen.c:306!
invalid opcode: 0000 [#89]
SMP
Modules linked in: ebt_arp ebt_ip xt_physdev iptable_filter ip_tables
x_tables ebtable_filter ebtables ipv6 binfmt_misc video thermal p
tery ac ehci_hcd e1000 floppy dm_snapshot dm_zero dm_mirror ext3 mbcache jbd
dm_mod 3w_9xxx sd_mod scsi_mod
CPU: 0
EIP: 0061:[<c0111ab5>] Not tainted VLI
EFLAGS: 00010282 (2.6.16-xen0 #2)
EIP is at pgd_ctor+0x30/0x3a
eax: fffffff4 ebx: 00000001 ecx: 00000001 edx: 00000000
esi: c0741ec0 edi: eb7c1e9c ebp: d2ea3dc8 esp: d2ea3dbc
ds: 007b es: 007b ss: 0069
Process bwmonitor (pid: 25480, threadinfo=d2ea2000 task=e99dca50)
Stack: <0>d03b0000 00000000 00000020 d2ea3de8 c015b53e d03b0000 c0741ec0
00000001
eb7c1e80 d03b0000 c073ff00 d2ea3e1c c015b749 c0741ec0 eb7c1e80
00000001
000000d0 c073ff2c 00000001 000000d0 00000000 ebc30040 c073ff10
0000000c
Call Trace:
[<c01051c8>] show_stack_log_lvl+0xaa/0xdf
[<c01053d2>] show_registers+0x193/0x20b
[<c01055db>] die+0x10e/0x1a4
[<c01056ef>] do_trap+0x7e/0xb4
[<c0105a25>] do_invalid_op+0xb5/0xbf
[<c0104e37>] error_code+0x2b/0x30
[<c015b53e>] cache_init_objs+0x4f/0x77
[<c015b749>] cache_grow+0x133/0x1ce
[<c015b9ba>] cache_alloc_refill+0x1d6/0x21b
[<c015bc18>] kmem_cache_alloc+0x86/0x8a
[<c0111b03>] pgd_alloc+0x1e/0x315
[<c011ae6d>] mm_init+0x88/0xb3
[<c011b0b8>] dup_mm+0x58/0x311
[<c011b3d4>] copy_mm+0x63/0x82
[<c011bce0>] copy_process+0x3d9/0xe11
[<c011c812>] do_fork+0x69/0x195
[<c010387b>] sys_clone+0x3b/0x3d
[<c0104ca5>] syscall_call+0x7/0xb
Code: 0c 80 3d 84 f3 39 c0 00 74 02 c9 c3 c7 44 24 08 20 00 00 00 c7 44 24
04 00
c0 c9 c3 55 89 e5 83 ec 08 80 3d 84 f3 39
--
~Shaun
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