Messages in this thread | | | From | Dale Blount <> | Subject | Re: PROBLEM: null pointer dereference in cfq dispatch requests (2.6.21-rc2 and 2.6.20) | Date | Wed, 21 Mar 2007 13:07:11 +0000 (UTC) |
| |
> I'm puzzled why this is hitting Dan, but no one else has reported > anything. Dan, did 2.6.19 work for you?
Actually, I believe it is happening to me too. This is on a 4-disk raid5 with one failed disk on two 2-port sata_sil pci controller cards.
The BUG below is from 2.6.20.3, but I will try 2.6.21-rc4 tonight. The disk didn't fail until 2.6.20, so I don't know if 2.6.19 would have worked or not.
BUG: unable to handle kernel NULL pointer dereference at virtual address 0000005c printing eip: *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: ipv6 raid456 xor md_mod e1000 usbcore ext3 jbd mbcache sata_sil sd_mod sr_mod cdrom generic ide_core ata_piix libata CPU: 0 EIP: 0060:[<c0220a29>] Not tainted VLI EFLAGS: 00010086 (2.6.20-ARCH #1) EIP is at cfq_dispatch_insert+0x19/0x70 eax: c2bc1340 ebx: 00000000 ecx: 00000049 edx: 00000000 esi: c298802c edi: f7c17cc0 ebp: 00e47352 esp: f18addfc ds: 007b es: 007b ss: 0068 Process rsync (pid: 3698, ti=f18ac000 task=dfe97570 task.ti=f18ac000) Stack: 00000000 c298ce3c f7c17cc0 00e47352 c0220bd9 00000040 c2b3cd40 c2b3c4a8 cafa6500 c0294750 00000000 00000000 00000004 d8ed1480 00000000 cafa6500 c298802c c29f0800 c2b3c000 c298802c c0215690 00000000 c0294750 cafa6500 Call Trace: [<c0220bd9>] cfq_dispatch_requests+0xf9/0x4e0 [<c0294750>] scsi_done+0x0/0x20 [<c0215690>] elv_next_request+0x20/0x1d0 [<c0294750>] scsi_done+0x0/0x20 [<c0294ab6>] scsi_dispatch_cmd+0x146/0x230 [<c0299904>] scsi_request_fn+0x194/0x2d0 [<c0219518>] blk_run_queue+0x58/0x70 [<c0298460>] scsi_next_command+0x30/0x50 [<c029866b>] scsi_end_request+0xab/0xe0 [<c0298776>] scsi_io_completion+0x86/0x370 [<f882c770>] ata_hsm_qc_complete+0x90/0x110 [libata] [<f88127eb>] sd_rw_intr+0x2b/0x200 [sd_mod] [<c02945a9>] scsi_finish_command+0x49/0x60 [<c0219d88>] blk_done_softirq+0x58/0x70 [<c012bc12>] __do_softirq+0x82/0xf0 [<c012bcb7>] do_softirq+0x37/0x40 [<c012bee5>] irq_exit+0x45/0x50 [<c0105dc5>] do_IRQ+0x45/0x80 [<c0103c0f>] common_interrupt+0x23/0x28 ======================= Code: ae 40 ee ff e9 25 ff ff ff 0f 0b eb fe 0f 0b eb fe 90 83 ec 10 89 1c 24 89 d3 89 74 24 04 89 c6 89 7c 24 08 89 6c 24 0c 8b 40 0c <8b> 7a 5c 8b 68 04 89 d0 e8 7a fe ff ff 8b 43 14 89 da 25 01 80 EIP: [<c0220a29>] cfq_dispatch_insert+0x19/0x70 SS:ESP 0068:f18addfc <0>Kernel panic - not syncing: Fatal exception in interrupt
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |