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    SubjectRe: Kernel Panic in MPT SAS on 2.6.24 (and 2.6.23.14, 2.6.23.9)
    On Wed, 6 Feb 2008 22:04:26 +0100
    Maximilian Wilhelm <max@rfc2324.org> wrote:

    > Hi!
    >
    > While installing my new firewall I got the following kernel panic in
    > the MPT SAS driver which I need for the disks.
    >
    > The first kernel I bootet was 2.6.23.14 which did panic so I tried a
    > 2.6.24 which panics, too. Our usual FAI kernel (2.6.23.9) is also
    > affected.
    >
    > If there is any information you may need to track this down, please
    > let me know.
    >
    > I've put the .config to http://files.rfc2324.org/mptsas_panic/2.6.24-config
    > to limit the size of this mail.
    >
    > ...
    >
    > ide-floppy driver 0.99.newide
    > aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.3 loaded
    > megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
    > megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
    > megasas: 00.00.03.10-rc5 Thu May 17 10:09:32 PDT 2007
    > Driver 'sd' needs updating - please use bus_type methods
    > Fusion MPT base driver 3.04.06
    > Copyright (c) 1999-2007 LSI Corporation
    > Fusion MPT SAS Host driver 3.04.06
    > mptbase: ioc0: Initiating bringup
    > ioc0: LSISAS1068E B3: Capabilities={Initiator}
    > scsi0 : ioc0: LSISAS1068E B3, FwRev=00142e00h, Ports=1, MaxQ=511, IRQ=16
    > scsi 0:0:0:0: Direct-Access SEAGATE ST973402SS S207 PQ: 0 ANSI: 5
    > scsi 0:0:1:0: Direct-Access SEAGATE ST973402SS S207 PQ: 0 ANSI: 5
    > BUG: unable to handle kernel NULL pointer dereference at virtual address 00000010
    > printing eip: c02c0b38 *pde = 00000000
    > Oops: 0000 [#1] SMP
    > Modules linked in:
    >
    > Pid: 1, comm: swapper Not tainted (2.6.24 #1)
    > EIP: 0060:[<c02c0b38>] EFLAGS: 00010246 CPU: 1
    > EIP is at mptsas_probe_expander_phys+0x51/0x4a2
    > EAX: 00000010 EBX: f7457ec0 ECX: f7c3fd9c EDX: 00000004
    > ESI: f7fe7800 EDI: f7fe7800 EBP: f7fe7904 ESP: f7c3fe18
    > DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
    > Process swapper (pid: 1, ti=f7c3e000 task=f7c22ab0 task.ti=f7c3e000)
    > Stack: 0000ffff 00000000 00200200 fffefd74 c02b9cc8 f7fe7800 c04c5280 f7c3fecc
    > 376b1000 00000001 00000000 00000000 00000000 00100100 00200200 00000000
    > 00200200 fffefd74 c02b9cc8 f7fe7800 c04c5280 f7c3fe8c 376b1000 00000001
    > Call Trace:
    > [<c02b9cc8>] mpt_timer_expired+0x0/0x5c
    > [<c02b9cc8>] mpt_timer_expired+0x0/0x5c
    > [<c0280000>] ide_wait_cmd+0x90/0xa0
    > [<c02c2806>] mptsas_probe+0x38a/0x40b
    > [<c0180522>] sysfs_create_link+0xb7/0xf9
    > [<c021ceb6>] pci_device_probe+0x36/0x57
    > [<c023bcd0>] driver_probe_device+0xde/0x15c
    > [<c036d3e5>] klist_next+0x4b/0x6b
    > [<c023bde0>] __driver_attach+0x0/0x79
    > [<c023be26>] __driver_attach+0x46/0x79
    > [<c023b2a8>] bus_for_each_dev+0x33/0x55
    > [<c023bb37>] driver_attach+0x16/0x18
    > [<c023bde0>] __driver_attach+0x0/0x79
    > [<c023b58e>] bus_add_driver+0x6d/0x197
    > [<c021cff2>] __pci_register_driver+0x48/0x74
    > [<c0480bd3>] mptsas_init+0xbf/0xd6
    > [<c046c74e>] kernel_init+0x140/0x2a2
    > [<c01024ca>] ret_from_fork+0x6/0x1c
    > [<c046c60e>] kernel_init+0x0/0x2a2
    > [<c046c60e>] kernel_init+0x0/0x2a2
    > [<c010319f>] kernel_thread_helper+0x7/0x10
    > =======================
    > Code: 85 c0 0f 84 68 04 00 00 8b 54 24 1c 8b 02 89 04 24 31 c9 89 da 89 f8 e8 2b f2 ff ff 89 44 24 2c 85 c0 8b 43 0c 0f 85 39 04 00 00 <0f> b7 00 8b 74 24 1c 89 06 8d 87 24 05 00 00 89 44 24 20 e8 5b
    > EIP: [<c02c0b38>] mptsas_probe_expander_phys+0x51/0x4a2 SS:ESP 0068:f7c3fe18
    > ---[ end trace 50b3e7147499e641 ]---
    > Kernel panic - not syncing: Attempted to kill init!
    >

    Thanks. Cc's added...


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