[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] blktap problem: Re: BUG: unable to handle kernel NULL pointer dereference (4.0.1 w/2.6.32.36)
2011/6/11 Pasi Kärkkäinen <pasik@xxxxxx>: > Hello, > I added Daniel as CC, maybe he has some ideas about this one. > What do you do when this crash happens? How to reproduce it? It's the third time and all times it happened in the night. I have set kernel.panic=20 so when this happen, the box simply reboot. I would say it's random. The output I post was captured with netconsole Some hardware info: description: System product: S3420GP vendor: Intel Corporation version: .................... serial: ............ width: 64 bits capabilities: smbios-2.5 dmi-2.5 vsyscall64 vsyscall32 configuration: administrator_password=disabled boot=normal chassis=server fr ontpanel_password=disabled keyboard_password=disabled power-on_password=disabled uuid=0FD8E440-1952-11E0-B578-001E6702C2CA *-core description: Motherboard product: S3420GP vendor: Intel Corporation physical id: 0 *-memory description: System Memory physical id: 2e slot: System board or motherboard size: 16GiB *-cpu:0 description: CPU product: Intel(R) Xeon(R) CPU X3430 @ 2.40GHz vendor: Intel Corp. physical id: 3b bus info: cpu@0 version: Intel(R) Xeon(R) CPU X3430 @ 2.40GHz slot: CPU1 size: 2400MHz capacity: 4GHz width: 64 bits clock: 133MHz *-storage description: RAID bus controller product: 9690SA SAS/SATA-II RAID PCIe vendor: 3ware Inc physical id: 0 bus info: pci@0000:01:00.0 logical name: scsi0 version: 01 width: 64 bits clock: 33MHz capabilities: storage pm msi pciexpress bus_master cap_list rom emulated configuration: driver=3w-9xxx latency=0 resources: irq:16 memory:b0000000-b1ffffff(prefetchable) memory: b3a00000-b3a00fff ioport:2000(size=256) memory:b3a20000-b3a3ffff(prefetchable) In the beginning I experienced controller reset but last lsi firmware seems to fix that. Maybe it's related to this bug.. > > -- Pasi > > On Sat, Jun 11, 2011 at 04:17:44AM -0700, quartex wrote: >> I have updated to 2.6.32.41 but it happened again. >> >> [491154.766766] BUG: unable to handle kernel NULL pointer dereference >> at 0000000000000320 >> [491154.767477] IP: [<ffffffff8128cbc3>] blktap_device_end_request+0x4a/0x71 >> [491154.767844] PGD 3db17067 PUD 3cebe067 PMD 0 >> [491154.768219] Oops: 0000 [#1] SMP >> [491154.768572] last sysfs file: /sys/devices/vbd-4-51713/statistics/wr_sect >> [491154.768942] CPU 3 >> [491154.769295] Modules linked in: netconsole [last unloaded: >> scsi_wait_scan] >> [491154.769683] Pid: 4392, comm: tapdisk2 Not tainted 2.6.32.36 #4 S3420GP >> [491154.770056] RIP: e030:[<ffffffff8128cbc3>] [<ffffffff8128cbc3>] >> blktap_device_end_request+0x4a/0x71 >> [491154.770767] RSP: e02b:ffff88003cd33ca8 EFLAGS: 00010046 >> [491154.771133] RAX: 0000000000000000 RBX: ffff88003df60d20 RCX: >> 0000000000000000 >> [491154.771824] RDX: 00000000000000a1 RSI: 0000000000000001 RDI: >> 0000000000000004 >> [491154.772524] RBP: ffff88003cd33cc8 R08: 0000000000000000 R09: >> ffff88003cd33b08 >> [491154.773222] R10: 0000000000000001 R11: ffffffff00001000 R12: >> ffff88003ccadb20 >> [491154.773915] R13: ffff88003d8e3c00 R14: 0000000000000000 R15: >> 0000000000000002 >> [491154.774622] FS: 00007f152f810740(0000) GS:ffff88002808f000(0000) >> knlGS:0000000000000000 >> [491154.775325] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b >> [491154.775683] CR2: 0000000000000320 CR3: 000000003b095000 CR4: >> 0000000000002660 >> [491154.776380] DR0: 0000000000000000 DR1: 0000000000000000 DR2: >> 0000000000000000 >> [491154.777079] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: >> 0000000000000400 >> [491154.777770] Process tapdisk2 (pid: 4392, threadinfo >> ffff88003cd32000, task ffff88003d833c80) >> [491154.778476] Stack: >> [491154.778821] ffff88003d8e3c00 0000000000000000 ffff88003ccadb20 >> 0000000000e5386f >> [491154.779220] <0> ffff88003cd33e58 ffffffff8128beab 000000003cd33ce8 >> ffffffff81aab128 >> [491154.779956] <0> 000000013d743ac0 ffff88003d7439a0 000000019681a000 >> ffff88003fffc800 >> [491154.780987] Call Trace: >> [491154.781334] [<ffffffff8128beab>] blktap_ring_ioctl+0x12d/0x23f >> [491154.781676] [<ffffffff811d503b>] ? avc_has_perm+0x57/0x69 >> [491154.782017] [<ffffffff811d6322>] ? inode_has_perm+0x5f/0x61 >> [491154.782368] [<ffffffff810e13b3>] ? generic_file_aio_write+0x8c/0xa9 >> [491154.782718] [<ffffffff8111fd46>] vfs_ioctl+0x6a/0x82 >> [491154.783072] [<ffffffff81120248>] do_vfs_ioctl+0x473/0x4b9 >> [491154.783426] [<ffffffff811202df>] sys_ioctl+0x51/0x74 >> [491154.783781] [<ffffffff8103ccc2>] system_call_fastpath+0x16/0x1b >> [491154.784142] Code: e6 4c 89 >> [491154.795155] [<ffffffff81120248>] do_vfs_ioctl+0x473/0x4b9 >> >> >> >> >> >> -- >> View this message in context: >> http://xen.1045712.n5.nabble.com/BUG-unable-to-handle-kernel-NULL-pointer-dereference-4-0-1-w-2-6-32-36-tp4432056p4478572.html >> Sent from the Xen - Dev mailing list archive at Nabble.com. >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-devel > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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