[42949379.700000] sda: assuming drive cache: write through [42949379.700000] sda: assuming drive cache: write through [42949388.750000] piix4_smbus 0000:00:07.3: Host SMBus controller not enabled! [42949436.140000] ------------[ cut here ]------------ [42949436.140000] kernel BUG at drivers/md/kcopyd.c:145! [42949436.140000] invalid operand: 0000 [#1] [42949436.140000] SMP [42949436.140000] Modules linked in: dm_snapshot ipv6 af_packet dm_mod md_mod lp tsdev floppy parport_pc parport i2c_piix4 i2c_core psmouse serio_raw pcnet32 mii pcspkr shpchp pci_hotplug intel_agp agpgart sg evdev ext3 jbd ide_generic sd_mod mptspi mptscsih mptbase scsi_mod ide_cd cdrom piix generic thermal processor fan capability commoncap vga16fb vgastate fbcon tileblit font bitblit softcursor [42949436.140000] CPU: 0 [42949436.140000] EIP: 0060:[] Not tainted VLI [42949436.140000] EFLAGS: 00010287 (2.6.15-23-server) [42949436.140000] EIP is at client_free_pages+0x33/0x40 [dm_mod] [42949436.140000] eax: 00000100 ebx: ce4413e0 ecx: cdeb0e00 edx: 00000000 [42949436.140000] esi: d09eb080 edi: 00000000 ebp: 00000000 esp: cf453ec0 [42949436.140000] ds: 007b es: 007b ss: 0068 [42949436.140000] Process lvremove (pid: 3570, threadinfo=cf452000 task=cf7bca70) [42949436.140000] Stack: d0a01b3f ce4413e0 d0a031ab ce4413e0 cff6c7c0 d08b7a8e ce4413e0 ce233280 [42949436.140000] d09eb080 cdc7cd80 d09fd0f7 d09eb080 cdc7cd80 ce4416c0 00000004 cf452000 [42949436.140000] d09ff619 cdc7cd80 00000000 d0a09be0 d099a000 d09ffec7 ce4416c0 00000000 [42949436.140000] Call Trace: [42949436.140000] [] dm_io_put+0xf/0x30 [dm_mod] [42949436.140000] [] kcopyd_client_destroy+0x1b/0x32 [dm_mod] [42949436.140000] [] snapshot_dtr+0x6e/0x80 [dm_snapshot] [42949436.140000] [] table_destroy+0x47/0xa0 [dm_mod] [42949436.140000] [] __hash_remove+0x79/0xa0 [dm_mod] [42949436.140000] [] dev_remove+0x47/0xd0 [dm_mod] [42949436.140000] [] ctl_ioctl+0x10c/0x160 [dm_mod] [42949436.140000] [] dev_remove+0x0/0xd0 [dm_mod] [42949436.140000] [] do_ioctl+0x93/0xa0 [42949436.140000] [] vfs_ioctl+0x6b/0x230 [42949436.140000] [] sys_ioctl+0x88/0xa0 [42949436.140000] [] sysenter_past_esp+0x54/0x75 [42949436.140000] Code: 8b 43 10 39 43 14 75 23 8b 43 0c 89 04 24 e8 35 ff ff ff c7 43 0c 00 00 00 00 c7 43 10 00 00 00 00 c7 43 14 00 00 00 00 58 5b c3 <0f> 0b 91 00 e4 34 a0 d0 eb d3 8d 76 00 83 ec 18 31 c0 89 44 24 [42949436.140000] <1>Unable to handle kernel NULL pointer dereference at virtual address 00000004 [42949436.860000] printing eip: [42949436.880000] c015045c [42949436.890000] *pde = 0f122001 [42949436.910000] Oops: 0000 [#2] [42949436.910000] SMP [42949436.910000] Modules linked in: dm_snapshot ipv6 af_packet dm_mod md_mod lp tsdev floppy parport_pc parport i2c_piix4 i2c_core psmouse serio_raw pcnet32 mii pcspkr shpchp pci_hotplug intel_agp agpgart sg evdev ext3 jbd ide_generic sd_mod mptspi mptscsih mptbase scsi_mod ide_cd cdrom piix generic thermal processor fan capability commoncap vga16fb vgastate fbcon tileblit font bitblit softcursor [42949436.910000] CPU: 0 [42949436.910000] EIP: 0060:[] Not tainted VLI [42949436.910000] EFLAGS: 00010286 (2.6.15-23-server) [42949436.910000] EIP is at mempool_free+0x1c/0xa0 [42949436.910000] eax: 00000000 ebx: 00000000 ecx: 00002000 edx: cf2c1de0 [42949436.910000] esi: 00000000 edi: cf2c1de0 ebp: 00000000 esp: cf453bb4 [42949436.910000] ds: 007b es: 007b ss: 0068 [42949436.910000] Process lvremove (pid: 3570, threadinfo=cf452000 task=cf7bca70) [42949436.910000] Stack: 00000000 cf472210 ca526934 00000000 d0a027b0 d0a01bd9 cf2c1de0 00000000 [42949436.910000] cdb998c0 cbdb7ec0 cf2c1de0 d0a01c4b cf2c1de0 00000000 00000000 00000000 [42949436.910000] c4aefb18 cbce8d68 d09fb286 cdb998c0 00002000 00000000 c03fb100 cd6d2640 [42949436.910000] Call Trace: [42949436.910000] [] complete_io+0x0/0xc0 [dm_mod] [42949436.910000] [] dec_count+0x79/0xa0 [dm_mod] [42949436.910000] [] endio+0x4b/0x80 [dm_mod] [42949436.910000] [] clone_endio+0xd6/0x160 [dm_mod] [42949436.910000] [] __end_that_request_first+0x138/0x270 [42949436.910000] [] try_to_wake_up+0x8c/0x430 [42949436.910000] [] scsi_end_request+0x3b/0x130 [scsi_mod] [42949436.910000] [] scsi_io_completion+0x163/0x5b0 [scsi_mod] [42949436.910000] [] sd_rw_intr+0x85/0x3b0 [sd_mod] [42949436.910000] [] scsi_device_unbusy+0x4c/0x80 [scsi_mod] [42949436.910000] [] scsi_finish_command+0x24/0xf0 [scsi_mod] [42949436.910000] [] scsi_softirq+0xe8/0x170 [scsi_mod] [42949436.910000] [] __do_softirq+0x72/0xe0 [42949436.910000] [] do_softirq+0x35/0x40 [42949436.910000] [] apic_timer_interrupt+0x1c/0x24 [42949436.910000] [] die+0x121/0x190 [42949436.910000] [] do_invalid_op+0x0/0xd0 [42949436.910000] [] do_invalid_op+0xb8/0xd0 [42949436.910000] [] client_free_pages+0x33/0x40 [dm_mod] [42949436.910000] [] kmem_freepages+0x8e/0xb0 [42949436.910000] [] slab_destroy+0x45/0xe0 [42949436.910000] [] memmove+0x50/0x64 [42949436.910000] [] cache_flusharray+0x9d/0xf0 [42949436.910000] [] error_code+0x4f/0x54 [42949436.910000] [] client_free_pages+0x33/0x40 [dm_mod] [42949436.910000] [] dm_io_put+0xf/0x30 [dm_mod] [42949436.910000] [] kcopyd_client_destroy+0x1b/0x32 [dm_mod] [42949436.910000] [] snapshot_dtr+0x6e/0x80 [dm_snapshot] [42949436.910000] [] table_destroy+0x47/0xa0 [dm_mod] [42949436.910000] [] __hash_remove+0x79/0xa0 [dm_mod] [42949436.910000] [] dev_remove+0x47/0xd0 [dm_mod] [42949436.910000] [] ctl_ioctl+0x10c/0x160 [dm_mod] [42949436.910000] [] dev_remove+0x0/0xd0 [dm_mod] [42949436.910000] [] do_ioctl+0x93/0xa0 [42949436.910000] [] vfs_ioctl+0x6b/0x230 [42949436.910000] [] sys_ioctl+0x88/0xa0 [42949436.910000] [] sysenter_past_esp+0x54/0x75 [42949436.910000] Code: da 8d b4 26 00 00 00 00 8d bc 27 00 00 00 00 83 ec 14 89 5c 24 08 8b 5c 24 1c 89 7c 24 10 8b 7c 24 18 89 74 24 0c 0f ae f0 89 f6 <8b> 43 04 39 43 08 7d 1a 89 d8 e8 25 66 1b 00 89 c6 8b 43 04 39 [42949436.910000] <0>Kernel panic - not syncing: Fatal exception in interrupt [42949437.860000]