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[linux-lvm] lvcreate kernel oops 2.6.22



Below is the log of a kernel oops while using lvcreate to make a snapshot. I'm running kernel 2.6.22 with Ubuntu and Xen patches. Approximately 8 snapshots are being created sequentially and at any given time the box has about 10-15 snapshots. Any suggestions on avoiding oopses?

thanks,
Norbert

Aug  6 00:51:02 ram Oops: 0000 [#1]
Aug  6 00:51:02 ram SMP
Aug 6 00:51:02 ram Modules linked in: dm_snapshot ipv6 nfs lockd nfs_acl sunrpc bridge llc dm_mod aoe e1000 uhci_hcd evdev
Aug  6 00:51:02 ram CPU:    0
Aug  6 00:51:02 ram EIP:    0061:[<ee094488>]    Not tainted VLI
Aug  6 00:51:02 ram EFLAGS: 00010202   (2.6.22 #1)
Aug  6 00:51:02 ram EIP is at __map_bio+0x32/0xa4 [dm_mod]
Aug 6 00:51:02 ram eax: ee9110c0 ebx: 00000000 ecx: d6cfbf40 edx: e3ecba40 Aug 6 00:51:02 ram esi: e3ecba40 edi: d6cfbf38 ebp: ee9110c0 esp: e6fb1d34
Aug  6 00:51:02 ram ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0069
Aug 6 00:51:02 ram Process lvcreate (pid: 11382, ti=e6fb0000 task=df9a2ab0 task.ti=e6fb0000) Aug 6 00:51:02 ram Stack: 003ffff8 00000000 00000000 e05865c0 d6cfbf48 e8b129c0 ee094e01 00000000 Aug 6 00:51:02 ram 00000001 00000008 e159c440 c03f5400 c65ee9c0 e05865c0 ffc00008 ffffffff Aug 6 00:51:02 ram c0157006 00000000 ee095f6c d6cfbf38 ee9110c0 ee07e080 e05865c0 00002fbb
Aug  6 00:51:02 ram Call Trace:
Aug  6 00:51:02 ram [<ee094e01>] __split_bio+0x194/0x475 [dm_mod]
Aug  6 00:51:02 ram [<c0157006>] __vunmap+0x62/0xe5
Aug  6 00:51:02 ram [<ee095f6c>] close_dev+0x23/0x2c [dm_mod]
Aug  6 00:51:02 ram [<ee0950fb>] __flush_deferred_io+0x19/0x22 [dm_mod]
Aug  6 00:51:02 ram [<ee09526f>] dm_resume+0x96/0xdf [dm_mod]
Aug  6 00:51:02 ram [<ee09825d>] dev_suspend+0x101/0x178 [dm_mod]
Aug  6 00:51:02 ram [<ee098b38>] ctl_ioctl+0x1eb/0x255 [dm_mod]
Aug  6 00:51:02 ram [<c0171866>] dput+0x83/0xf1
Aug  6 00:51:02 ram [<c016a1df>] __link_path_walk+0xa09/0xc51
Aug  6 00:51:02 ram [<ee09815c>] dev_suspend+0x0/0x178 [dm_mod]
Aug  6 00:51:02 ram [<ee09894d>] ctl_ioctl+0x0/0x255 [dm_mod]
Aug  6 00:51:02 ram [<c016c360>] do_ioctl+0x70/0xa9
Aug  6 00:51:02 ram [<ee09894d>] ctl_ioctl+0x0/0x255 [dm_mod]
Aug  6 00:51:02 ram [<c016c3e9>] vfs_ioctl+0x50/0x26a
Aug  6 00:51:02 ram [<c016c637>] sys_ioctl+0x34/0x51
Aug  6 00:51:02 ram [<c0104a18>] syscall_call+0x7/0xb
Aug  6 00:51:02 ram =======================
Aug 6 00:51:02 ram Code: 89 c5 89 d6 89 cf 8b 4a 20 85 c9 0f 84 88 00 00 00 c7 42 34 fa 44 09 ee 89 7a 3c 8b 07 83 c0 0c f0 ff 00 8b 5d 04 8d 4f 08 89 e8 <ff> 53 1c 89 c2 83 f8 01 74 56 85 c0 78 14 83 f8 02 74 0f 85 c0 Aug 6 00:51:02 ram EIP: [<ee094488>] __map_bio+0x32/0xa4 [dm_mod] SS:ESP 0069:e6fb1d34


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