[Xen-users] Unable to handle paging request

["Rishi Gokhale" <Rishi.Gokhale@xxxxxxxxxxxxxxxxxx>]

Hey Guys,

 

I am using the xen 2.6.11.12 xen kernel to run a xen system. Am pretty new to xen and xen administration.

 

I have a script that builds rpms. So basically the things happening are

 

Tarring some code

Compiling it

And packaging it into rpms.

 

While this script is running I sometimes get Unable to handle paging request issues that crash the xen client, the logs are as follows

 

Jan  2 19:40:15  server sshd(pam_unix)[10954]: session opened for user tabasco2 by (uid=500)

Jan  2 19:42:19 server kernel: Unable to handle kernel paging request at virtual address c00cf680

Jan  2 19:42:19 server kernel:  printing eip:

Jan  2 19:42:19 server kernel: c0144c78

Jan  2 19:42:19 server kernel: *pde = ma 0af0f067 pa 005e0067

Jan  2 19:42:19 server kernel: *pte = ma 0a7a0063 pa 000cf063

Jan  2 19:42:19 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:19 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:19 server kernel:  [<c01452f4>] __blk_queue_bounce+0x1d4/0x260

Jan  2 19:42:19 server kernel:  [<c01453b6>] blk_queue_bounce+0x36/0x50

Jan  2 19:42:19 server kernel:  [<c0290a7c>] __make_request+0x4c/0x550

Jan  2 19:42:19 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:19 server kernel:  [<c0291332>] generic_make_request+0x92/0x200

Jan  2 19:42:19 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c010dbce>] do_IRQ+0x1e/0x30

Jan  2 19:42:20 server kernel:  [<c0105eb3>] evtchn_do_upcall+0x83/0xa0

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c013a511>] mempool_alloc+0x81/0x1f0

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c02914fa>] submit_bio+0x5a/0xf0

Jan  2 19:42:20 server kernel:  [<c0274040>] memmove+0x50/0x70

Jan  2 19:42:20 server kernel:  [<c015e6eb>] bio_alloc+0x16b/0x1e0

Jan  2 19:42:20 server kernel:  [<c015a6c0>] end_buffer_write_sync+0x0/0x70

Jan  2 19:42:20 server kernel:  [<c015def5>] submit_bh+0xe5/0x130

Jan  2 19:42:20 server kernel:  [<c015dfc2>] ll_rw_block+0x82/0xb0

Jan  2 19:42:20 server kernel:  [<c01d6d1e>] journal_commit_transaction+0xa3e/0x1250

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c01d996d>] kjournald+0xdd/0x290

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c0109172>] ret_from_fork+0x6/0x1c

Jan  2 19:42:20 server kernel:  [<c01d9870>] commit_timeout+0x0/0x10

Jan  2 19:42:20 server kernel:  [<c01d9890>] kjournald+0x0/0x290

Jan  2 19:42:20 server kernel:  [<c01071e5>] kernel_thread_helper+0x5/0x10

Jan  2 19:42:20 server kernel: Oops: 0003 [#1]

Jan  2 19:42:20 server kernel: PREEMPT

Jan  2 19:42:20 server kernel: CPU:    0

Jan  2 19:42:20 server kernel: EIP:    0061:[<c0144c78>]    Not tainted VLI

Jan  2 19:42:20 server kernel: EFLAGS: 00010206   (2.6.11.12-4-xenU)

Jan  2 19:42:20 server kernel: EIP is at kmap_high+0x1b8/0x210

Jan  2 19:42:20 server kernel: eax: 64eb5063   ebx: fb9a0000   ecx: 000001a0   edx: 0005a63a

Jan  2 19:42:20 server kernel: esi: c1b4c740   edi: 00000063   ebp: c00cf000   esp: f36efc04

Jan  2 19:42:20 server kernel: ds: 007b   es: 007b   ss: 0069

Jan  2 19:42:20 server kernel: Process kjournald (pid: 819, threadinfo=f36ee000 task=f19d8a00)

Jan  2 19:42:20 server kernel: Stack: c1b4c740 00000000 00000000 f19d8a00 c0132b40 f36efc38 f36efc38 c1d2af00

Jan  2 19:42:20 server kernel:        00000220 00000000 00000000 f19d8a00 c0132b40 f36efc38 f36efc38 00000010

Jan  2 19:42:20 server kernel:        fb9a0000 00000000 f30c4be0 ed9ae480 c05f6f60 f30c4bf0 c01452f4 c1b4c740

Jan  2 19:42:20 server kernel: Call Trace:

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c01452f4>] __blk_queue_bounce+0x1d4/0x260

Jan  2 19:42:20 server kernel:  [<c01453b6>] blk_queue_bounce+0x36/0x50

Jan  2 19:42:20 server kernel:  [<c0290a7c>] __make_request+0x4c/0x550

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c0291332>] generic_make_request+0x92/0x200

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c010dbce>] do_IRQ+0x1e/0x30

Jan  2 19:42:20 server kernel:  [<c0105eb3>] evtchn_do_upcall+0x83/0xa0

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c013a511>] mempool_alloc+0x81/0x1f0

Jan  2 19:42:20 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:20 server kernel:  [<c02914fa>] submit_bio+0x5a/0xf0

Jan  2 19:42:20 server kernel:  [<c0274040>] memmove+0x50/0x70

Jan  2 19:42:20 server kernel:  [<c015e6eb>] bio_alloc+0x16b/0x1e0

Jan  2 19:42:20 server kernel:  [<c015a6c0>] end_buffer_write_sync+0x0/0x70

Jan  2 19:42:20 server kernel:  [<c015def5>] submit_bh+0xe5/0x130

Jan  2 19:42:20 server kernel:  [<c015dfc2>] ll_rw_block+0x82/0xb0

Jan  2 19:42:20 server kernel:  [<c01d6d1e>] journal_commit_transaction+0xa3e/0x1250

Jan  2 19:42:21 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:21 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:21 server kernel:  [<c01d996d>] kjournald+0xdd/0x290

Jan  2 19:42:21 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:21 server kernel:  [<c0132b40>] autoremove_wake_function+0x0/0x60

Jan  2 19:42:21 server kernel:  [<c0109172>] ret_from_fork+0x6/0x1c

Jan  2 19:42:21 server kernel:  [<c01d9870>] commit_timeout+0x0/0x10

Jan  2 19:42:21 server kernel:  [<c01d9890>] kjournald+0x0/0x290

Jan  2 19:42:21 server kernel:  [<c01071e5>] kernel_thread_helper+0x5/0x10

Jan  2 19:42:21 server kernel: Code: c0 c1 ff 05 c1 e7 0c 09 c7 f7 c7 01 00 00 00 89 f8 74 18 a1 44 db 3f c0 89 fa c1 ea 0c 81 e7 ff 0f 0

0 00 8b 04 90 c1 e0 0c 09 f8 <89> 44 8d 00 a1 60 fc 40 c0 bd 01 00 00 00 89 5c 24 04 89 34 24

Jan  2 19:42:21 server kernel:  <6>note: kjournald[819] exited with preempt_count 1

Jan  2 19:46:26 server syslogd 1.4.1: restart.

Jan  2 19:46:26 server syslog: syslogd startup succeeded

 

 

Any help on how to troubleshoot this issue will be greatly appreciated.

 

Rishi

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