kernel panic with RIP on mptsas scsi_mod:scsi_device_lookup

Solution Verified - Updated -

Issue

  • kernel panic with RIP on mptsas scsi_mod:scsi_device_lookup

  • Kernel panic with below traces

    Unable to handle kernel NULL pointer dereference at 0000000000000058 RIP:
     [<ffffffff88075135>] :scsi_mod:scsi_device_lookup+0x11/0x62
    PGD 11e9ae067 PUD 11e971067 PMD 0
    Oops: 0000 [1] SMP
    last sysfs file: /block/ram0/dev
    CPU 0
    Modules linked in: mptsas mptscsih mptbase scsi_transport_sas sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
    Pid: 534, comm: mpt/0 Not tainted 2.6.18-194.el5 #1
    RIP: 0010:[<ffffffff88075135>]  [<ffffffff88075135>] :scsi_mod:scsi_device_lookup+0x11/0x62
    Process mpt/0 (pid: 534, threadinfo ffff81011ebfa000, task ffff81011faaf080)
    Stack:  ffff81011e98e13d 0000000000000000 0000000000000001 ffff81011e947000arget> <property>]
     ffff81011e98e0c0 ffffffff880fd5aa 0000000000000003 0000000000000003
     0000000000000105 0000000000000000 0000000000000000 0000000000000000
    Call Trace:es optional keywords or options
     [<ffffffff880fd5aa>] :mptsas:mptsas_firmware_event_work+0x512/0xe75
     [<ffffffff80063ff8>] thread_return+0x62/0xfe is indicated)
     [<ffffffff880fd098>] :mptsas:mptsas_firmware_event_work+0x0/0xe75
     [<ffffffff8004dc37>] run_workqueue+0x94/0xe4
     [<ffffffff8004a472>] worker_thread+0x0/0x122on if this target and its properties
     [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4is property of this target
     [<ffffffff8004a562>] worker_thread+0xf0/0x122targets
     [<ffffffff8008e16d>] default_wake_function+0x0/0xeal notice
     [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4
     [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4
     [<ffffffff80032bdc>] kthread+0xfe/0x132
     [<ffffffff8005efb1>] child_rip+0xa/0x11
     [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4
     [<ffffffff8019e040>] acpi_processor_idle_simple+0x17d/0x30e
     [<ffffffff80032ade>] kthread+0x0/0x132
     [<ffffffff8005efa7>] child_rip+0x0/0x11
    load
    reset
    Code: 48 8b 7f 58 89 cb e8 c8 09 ff f7 89 d9 44 89 e2 44 89 ee 48
    RIP  [<ffffffff88075135>] :scsi_mod:scsi_device_lookup+0x11/0x62
     RSP <ffff81011ebfbcd0>
    CR2: 0000000000000058
     <6>mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=3
    mptbase: ioc0:   PhysDisk is now failed, out of sync
    mptbase: ioc0: RAID STATUS CHANGE for VolumeID 0
    mptbase: ioc0:   volume is now degraded, enabled
    Kernel panic - not syncing: Fatal exception
    

Environment

  • RedHat Enterprise Linux 5

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