https://bugzilla.novell.com/show_bug.cgi?id=666106 https://bugzilla.novell.com/show_bug.cgi?id=666106#c0 Summary: Oops when MPTSAS raid is in degraded state Classification: openSUSE Product: openSUSE 11.3 Version: Final Platform: x86-64 OS/Version: Linux Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jengelh@medozas.de QAContact: qa@suse.de Found By: Beta-Customer Blocker: --- Observing a NULL deref when the kernel is booted on a degraded hardware raid set on at least two machines. (A third one last booted in synchronized state and showed no oops.) # uname -a Linux xen35 2.6.34.7-0.7-xen #1 SMP 2010-12-13 11:13:53 +0100 x86_64 x86_64 x86_64 GNU/Linux Hardware is a SUN X4100. [ 0.377835] mptsas 0000:02:03.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28 [ 0.377994] mptbase: ioc0: Initiating bringup [ 1.304009] ioc0: LSISAS1064 A3: Capabilities={Initiator} [ 7.304017] mptbase: ioc0: RAID STATUS CHANGE for VolumeID 2 [ 7.304021] mptbase: ioc0: volume is now degraded, enabled, resync in progr ess [ 7.308028] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 [ 7.308396] IP: [<ffffffffa0000212>] scsi_device_lookup+0x22/0x90 [scsi_mod] [ 7.308667] PGD 2e50bb067 PUD 2e5009067 PMD 0 [ 7.309123] Oops: 0000 [#1] SMP [ 7.309463] last sysfs file: [ 7.309587] CPU 0 [ 7.309704] Modules linked in: mptsas(+) mptscsih mptbase scsi_transport_sas scsi_mod [ 7.310610] [ 7.310728] Pid: 82, comm: mpt/0 Not tainted 2.6.34.7-0.7-xen #1 Sun Fire X4100 Server/Sun Fire X4100 Server [ 7.310880] RIP: e030:[<ffffffffa0000212>] [<ffffffffa0000212>] scsi_device_lookup+0x22/0x90 [scsi_mod] [ 7.311145] RSP: e02b:ffff8802e50b7cf0 EFLAGS: 00010286 [ 7.311277] RAX: 00000000000000ff RBX: 0000000000000000 RCX: 0000000000000000 [ 7.311417] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 0000000000000000 [ 7.311557] RBP: ffff8802e50ad5c0 R08: 0000000000000000 R09: 0000000000000001 [ 7.311697] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 7.311838] R13: ffff8802e512e000 R14: 0000000000000105 R15: 0000000000000001 [ 7.311981] FS: 00007f12329f4700(0000) GS:ffff88000200f000(0000) knlGS:0000000000000000 [ 7.312004] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 7.312004] CR2: 0000000000000058 CR3: 00000002e50d0000 CR4: 0000000000000660 [ 7.312004] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 7.312004] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 7.312004] Process mpt/0 (pid: 82, threadinfo ffff8802e50b6000, task ffff8802e63ec200) [ 7.312004] Stack: [ 7.312004] ffff8802e50ad64d ffff8802e50ad5c0 ffff8802e50b7da0 ffff8802e512e000 [ 7.312004] <0> 0000000000000105 ffffffffa0086126 0000000000000000 ffff880200000000 [ 7.312004] <0> ffff8802e50b7d50 ffff880002019c80 ffff8802e50b7d70 ffffffff80036a54 [ 7.312004] Call Trace: [ 7.312004] [<ffffffffa0086126>] mptsas_send_raid_event+0x1a6/0x2a0 [mptsas] [ 7.312004] [<ffffffff800603ac>] run_workqueue+0xec/0x220 [ 7.312004] [<ffffffff8006057b>] worker_thread+0x9b/0x100 [ 7.312004] [<ffffffff80063f3e>] kthread+0x8e/0xa0 [ 7.312004] [<ffffffff80007e04>] kernel_thread_helper+0x4/0x10 [ 7.312004] Code: ff 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 1c 24 48 89 6c 24 08 48 89 fb 4c 89 64 24 10 4c 89 6c 24 18 41 89 f4 4c 89 74 24 20 <48> 8b 7f 58 41 89 d5 41 89 ce e8 4f ea 40 e0 44 89 e6 44 89 f1 [ 7.312004] RIP [<ffffffffa0000212>] scsi_device_lookup+0x22/0x90 [scsi_mod] [ 7.312004] RSP <ffff8802e50b7cf0> [ 7.312004] CR2: 0000000000000058 [ 7.325821] ---[ end trace 58c7baf0246ea174 ]--- [ 7.345076] scsi0 : ioc0: LSISAS1064 A3, FwRev=01040000h, Ports=1, MaxQ=511, IRQ=28 [ 7.373231] mptsas: ioc0: attaching ssp device: fw_channel 0, fw_id 4, phy 2, sas_addr 0x5000cca00075bcb9 [ 7.375586] scsi 0:0:0:0: Direct-Access HITACHI H101414SCSUN146G SA25 PQ: 0 ANSI: 5 [ 7.383266] mptsas: ioc0: attaching ssp device: fw_channel 0, fw_id 3, phy 3, sas_addr 0x5000cca000766139 [ 7.385103] scsi 0:0:1:0: Direct-Access HITACHI H101414SCSUN146G SA25 PQ: 0 ANSI: 5 [ 7.391033] mptsas: ioc0: attaching raid volume, channel 1, id 2 [ 7.493664] scsi 0:1:2:0: Direct-Access LSILOGIC Logical Volume 3000 PQ: 0 ANSI: 2 I would love to try with 2.6.37, but that would depdng on bug #655329. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.