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    SubjectRe: [BUG] linux-next: Tree for March 25 kernel oops, when loading mpt fusion driver - regression
    On Wed, Mar 26, 2008 at 12:14:00PM +0530, Kamalesh Babulal wrote:
    > Hi Stephen,
    >
    > Kernel bug is hit while booting up the next-20080325 kernel with MPT
    > Fusion driver built in.This was reported previously for the
    > next-20080320 kernel
    > http://marc.info/?l=linux-next&m=120601013920868&w=2

    Hi, did you ever get this fixed? I've been having the same problem,
    http://marc.info/?l=linux-scsi&m=121061780821823&w=4
    still exists on 2.6.26-rc8 for me,

    Loading scsi_transport_spi.ko module
    Loading mptscsih.ko module
    Loading mptspi.ko module
    Fusion MPT SPI Host driver 3.04.06
    ACPI: PCI Interrupt 0000:86:01.0[A] -> GSI 32 (level, low) -> IRQ 32
    mptbase: ioc0: Initiating bringup
    ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
    mptbase: ioc0: PCI-MSI enabled
    mptbase: ioc0: Initiating recovery
    BUG: unable to handle kernel NULL pointer dereference at 0000000000000948
    IP: [<ffffffffa00e5e28>] :mptspi:mptspi_dv_renegotiate_work+0x13/0xc3
    PGD 7e981067 PUD 7e982067 PMD 0
    Oops: 0000 [1] SMP
    CPU 1
    Modules linked in: mptspi(+) mptscsih scsi_transport_spi mptbase sd_mod
    scsi_mod
    ext3 jbd ehci_hcd ohci_hcd uhci_hcd
    Pid: 16, comm: events/1 Not tainted 2.6.26-rc8 #2
    RIP: 0010:[<ffffffffa00e5e28>] [<ffffffffa00e5e28>]
    :mptspi:mptspi_dv_renegotia
    te_work+0x13/0xc3
    RSP: 0000:ffff81007f479e50 EFLAGS: 00010286
    RAX: ffffffff802429f7 RBX: ffff81007f479e90 RCX: 0000000000000000
    RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff81007f424138
    RBP: ffff81007f479e80 R08: 0000000000000002 R09: 0000000000000000
    R10: ffffffff802429f7 R11: ffff81007ffddde0 R12: ffff81007ffbcd90
    R13: 0000000000000948 R14: ffffffffa00e5e15 R15: 0000000000000000
    FS: 0000000000680850(0000) GS:ffff81007ff5fbe8(0000)
    knlGS:0000000000000000
    CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    CR2: 0000000000000948 CR3: 000000007e979000 CR4: 00000000000006e0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Process events/1 (pid: 16, threadinfo ffff81007f478000, task
    ffff81007f476480)
    Stack: ffffffffa00e5e15 0000000000000000 ffff81007f479e90
    ffff81007ffbcd90
    ffff81007f424138 ffffffffa00e5e15 ffff81007f479ed0 ffffffff80242a46
    5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a
    Call Trace:
    [<ffffffffa00e5e15>] ? :mptspi:mptspi_dv_renegotiate_work+0x0/0xc3
    [<ffffffffa00e5e15>] ? :mptspi:mptspi_dv_renegotiate_work+0x0/0xc3
    [<ffffffff80242a46>] run_workqueue+0xee/0x1f6
    [<ffffffff802435d3>] worker_thread+0xdb/0xe8
    [<ffffffff80246254>] ? autoremove_wake_function+0x0/0x38
    [<ffffffff802434f8>] ? worker_thread+0x0/0xe8
    [<ffffffff80246131>] kthread+0x49/0x78
    [<ffffffff8020cd98>] child_rip+0xa/0x12
    [<ffffffff80245fac>] ? kthreadd+0x1a6/0x1cb
    [<ffffffff802460e8>] ? kthread+0x0/0x78
    [<ffffffff8020cd8e>] ? child_rip+0x0/0x12


    Code: 8b bc 24 f8 00 00 00 e8 83 f7 ff ff 5a 5b 41 5c 41 5d 41 5e 41 5f c9
    c3 55
    48 89 e5 41 56 41 55 41 54 53 48 83 ec 10 4c 8b 6f 40 <4d> 8b 75 00 e8 6a
    9e 1a
    e0 66 41 83 bd fa 02 00 00 00 49 8b be
    RIP [<ffffffffa00e5e28>] :mptspi:mptspi_dv_renegotiate_work+0x13/0xc3
    RSP <ffff81007f479e50>
    CR2: 0000000000000948
    ---[ end trace 9714d7078ea4157a ]---
    mptbase: ioc0: Initiating recovery
    mptbase: ioc0: Initiating recovery
    mptbase: ioc0: Initiating recovery
    mptbase: ioc0: Initiating recovery
    mptbase: ioc0: Initiating recovery
    scsi0 : ioc0: LSI53C1030 B2, FwRev=01032700h, Ports=1, MaxQ=255, IRQ=8412
    target0:0:0: mptspi: ioc0: dma_alloc_coherent for parameters failed
    mptscsih: ioc0: attempting task abort! (sc=ffff81007f450d80)
    scsi 0:0:0:0: CDB: Inquiry: 12 00 00 00 24 00
    mptbase: ioc0: Initiating recovery
    scsi 0:0:0:0: mptscsih: ioc0: completing cmds: fw_channel 0, fw_id 0,
    sc=ffff81007f450d80, mf = ffff81007ea42ce0, idx=d
    mptscsih: ioc0: Issue of TaskMgmt failed!
    mptscsih: ioc0: task abort: FAILED (sc=ffff81007f450d80)
    mptscsih: ioc0: attempting target reset! (sc=ffff81007f450d80)

    ...



    > Loading mptscsih.ko module
    > Loading mptspi.ko module
    > [ 6.591066] Fusion MPT SPI Host driver 3.04.06
    > [ 6.592181] ACPI: PCI Interrupt 0000:01:01.0[A] -> GSI 22 (level, low) -> IRQ 22
    > [ 6.593991] mptbase: ioc0: Initiating bringup
    > [ 6.718342] ioc0: LSI53C1030 B2: Capabilities={Initiator}
    > [ 6.722484] mptbase: ioc0: PCI-MSI enabled
    > [ 16.902699] mptbase: ioc0: Initiating recovery
    > [ 16.903618] mptbase: ioc0: WARNING - IOC is in FAULT state!!!
    > [ 16.904618] mptbase: ioc0: WARNING - FAULT code = 8112h
    > [ 21.909082] mptbase: ioc0: ERROR - Doorbell ACK timeout (count=4999), IntStatus=80000009!
    > [ 39.152711] mptbase: ioc0: Recovered from IOC FAULT
    > [ 61.630538] BUG: unable to handle kernel NULL pointer dereference at 00000528
    > [ 61.632545] IP: [<f881ccc9>] :mptspi:mptspi_dv_renegotiate_work+0xc/0xab
    > [ 61.634545] *pde = 00000000
    > [ 61.636219] Oops: 0000 [#1] SMP
    > [ 61.636537] last sysfs file: /sys/block/ram15/dev
    > [ 61.636537] Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd
    > [ 61.636537]
    > [ 61.636537] Pid: 17, comm: events/2 Not tainted (2.6.25-rc6-next-20080325-autotest #1)
    > [ 61.636537] EIP: 0060:[<f881ccc9>] EFLAGS: 00010282 CPU: 2
    > [ 61.636537] EIP is at mptspi_dv_renegotiate_work+0xc/0xab [mptspi]
    > [ 61.636537] EAX: f79e5868 EBX: f79e586c ECX: f78c308c EDX: 00000001
    > [ 61.636537] ESI: f7867e38 EDI: 00000528 EBP: f78a2f78 ESP: f78a2f58
    > [ 61.636537] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
    > [ 61.636537] Process events/2 (pid: 17, ti=f78a2000 task=f78c29a0 task.ti=f78a2000)
    > [ 61.636537] Stack: 00000000 00000002 00000000 c0430b45 f78a2f90 f79e586c f7867e38 f79e5868
    > [ 61.636537] f78a2fac c0430b80 00000000 00000002 c0430b45 f881ccbd f8821588 c08ee870
    > [ 61.636537] f881d870 00000002 f7867e38 c043140a f7867e60 f78a2fd0 c04314be 00000000
    > [ 61.636537] Call Trace:
    > [ 61.636537] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 61.636537] [<c0430b80>] run_workqueue+0xbb/0x186
    > [ 61.636537] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 61.636537] [<f881ccbd>] mptspi_dv_renegotiate_work+0x0/0xab [mptspi]
    > [ 61.636537] [<c043140a>] worker_thread+0x0/0xbf
    > [ 61.636537] [<c04314be>] worker_thread+0xb4/0xbf
    > [ 61.636537] [<c043393d>] autoremove_wake_function+0x0/0x33
    > [ 61.636537] [<c043387b>] kthread+0x3b/0x64
    > [ 61.636537] [<c0433840>] kthread+0x0/0x64
    > [ 61.636537] [<c040468f>] kernel_thread_helper+0x7/0x10
    > [ 61.636537] =======================
    > [ 61.636537] Code: ff 8b 87 8c 00 00 00 e8 b0 6c 03 00 8b 87 8c 00 00 00 e8 6e f8 ff ff 8d 65 f4 5b 5e 5f 5d c3 55 89 e5 57 56 53 83 ec 14 8b 78 20 <8b> 17 89 55 e0 e8 87 2a c5 c7 8b 55 e0 66 83 bf b2 02 00 00 00
    > [ 61.636537] EIP: [<f881ccc9>] mptspi_dv_renegotiate_work+0xc/0xab [mptspi] SS:ESP 0068:f78a2f58
    > [ 61.636550] ---[ end trace c0dc9c06e06bc602 ]---
    > [ 47.107291] mptbase: ioc0: Initiating recovery
    > [ 47.108284] mptbase: ioc0: WARNING - IOC is in FAULT state!!!
    > [ 47.109284] mptbase: ioc0: WARNING - FAULT code = 8112h
    > [ 52.122242] mptbase: ioc0: ERROR - Doorbell ACK timeout (count=4999), IntStatus=80000009!
    > [ 69.374395] mptbase: ioc0: Recovered from IOC FAULT
    > [ 69.448422] Clocksource tsc unstable (delta = 18746181568 ns)
    > [ 91.888899] BUG: unable to handle kernel NULL pointer dereference at 00000528
    > [ 91.890902] IP: [<f881ccc9>] :mptspi:mptspi_dv_renegotiate_work+0xc/0xab
    > [ 91.892902] *pde = 00000000
    > [ 91.894904] Oops: 0000 [#2] SMP
    > [ 91.895898] last sysfs file: /sys/block/ram15/dev
    > [ 91.895898] Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd
    > [ 91.895898]
    > [ 91.895898] Pid: 15, comm: events/0 Tainted: G D (2.6.25-rc6-next-20080325-autotest #1)
    > [ 91.895898] EIP: 0060:[<f881ccc9>] EFLAGS: 00010282 CPU: 0
    > [ 91.895898] EIP is at mptspi_dv_renegotiate_work+0xc/0xab [mptspi]
    > [ 91.895898] EAX: f7a427b8 EBX: f7a427bc ECX: 00000000 EDX: 00000000
    > [ 91.895898] ESI: f7867f68 EDI: 00000528 EBP: f7877f78 ESP: f7877f58
    > [ 91.895898] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
    > [ 91.895898] Process events/0 (pid: 15, ti=f7877000 task=f789e8a0 task.ti=f7877000)
    > [ 91.895898] Stack: 00000000 00000002 00000000 c0430b45 f7877f90 f7a427bc f7867f68 f7a427b8
    > [ 91.895898] f7877fac c0430b80 00000000 00000002 c0430b45 f881ccbd 5a5a5a5a 5a5a5a5a
    > [ 91.895898] 5a5a5a5a 5a5a5a5a f7867f68 c043140a f7867f90 f7877fd0 c04314be 00000000
    > [ 91.895898] Call Trace:
    > [ 91.895898] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 91.895898] [<c0430b80>] run_workqueue+0xbb/0x186
    > [ 91.895898] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 91.895898] [<f881ccbd>] mptspi_dv_renegotiate_work+0x0/0xab [mptspi]
    > [ 91.895898] [<c043140a>] worker_thread+0x0/0xbf
    > [ 91.895898] [<c04314be>] worker_thread+0xb4/0xbf
    > [ 91.895898] [<c043393d>] autoremove_wake_function+0x0/0x33
    > [ 91.895898] [<c043387b>] kthread+0x3b/0x64
    > [ 91.895898] [<c0433840>] kthread+0x0/0x64
    > [ 91.895898] [<c040468f>] kernel_thread_helper+0x7/0x10
    > [ 91.895898] =======================
    > [ 91.895898] Code: ff 8b 87 8c 00 00 00 e8 b0 6c 03 00 8b 87 8c 00 00 00 e8 6e f8 ff ff 8d 65 f4 5b 5e 5f 5d c3 55 89 e5 57 56 53 83 ec 14 8b 78 20 <8b> 17 89 55 e0 e8 87 2a c5 c7 8b 55 e0 66 83 bf b2 02 00 00 00
    > [ 91.895898] EIP: [<f881ccc9>] mptspi_dv_renegotiate_work+0xc/0xab [mptspi] SS:ESP 0068:f7877f58
    > [ 91.895903] ---[ end trace c0dc9c06e06bc602 ]---
    > [ 82.434031] mptbase: ioc0: Initiating recovery
    > [ 82.435028] mptbase: ioc0: WARNING - IOC is in FAULT state!!!
    > [ 82.436028] mptbase: ioc0: WARNING - FAULT code = 8112h
    > [ 87.440153] mptbase: ioc0: ERROR - Doorbell ACK timeout (count=4999), IntStatus=80000009!
    > [ 104.682001] mptbase: ioc0: Recovered from IOC FAULT
    > [ 127.157135] BUG: unable to handle kernel NULL pointer dereference at 00000528
    > [ 127.159138] IP: [<f881ccc9>] :mptspi:mptspi_dv_renegotiate_work+0xc/0xab
    > [ 127.161139] *pde = 00000000
    > [ 127.163139] Oops: 0000 [#3] SMP
    > [ 127.164134] last sysfs file: /sys/block/ram15/dev
    > [ 127.164134] Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd
    > [ 127.164134]
    > [ 127.164134] Pid: 16, comm: events/1 Tainted: G D (2.6.25-rc6-next-20080325-autotest #1)
    > [ 127.164134] EIP: 0060:[<f881ccc9>] EFLAGS: 00010282 CPU: 1
    > [ 127.164134] EIP is at mptspi_dv_renegotiate_work+0xc/0xab [mptspi]
    > [ 127.164134] EAX: f7a42fa0 EBX: f7a42fa4 ECX: 00000000 EDX: 00000000
    > [ 127.164134] ESI: f7867ed0 EDI: 00000528 EBP: f78a1f78 ESP: f78a1f58
    > [ 127.164134] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
    > [ 127.164134] Process events/1 (pid: 16, ti=f78a1000 task=f78c0920 task.ti=f78a1000)
    > [ 127.164134] Stack: 00000000 00000002 00000000 c0430b45 f78a1f90 f7a42fa4 f7867ed0 f7a42fa0
    > [ 127.164134] f78a1fac c0430b80 00000000 00000002 c0430b45 f881ccbd 5a5a5a5a 5a5a5a5a
    > [ 127.164134] 5a5a5a5a 5a5a5a5a f7867ed0 c043140a f7867ef8 f78a1fd0 c04314be 00000000
    > [ 127.164134] Call Trace:
    > [ 127.164134] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 127.164134] [<c0430b80>] run_workqueue+0xbb/0x186
    > [ 127.164134] [<c0430b45>] run_workqueue+0x80/0x186
    > [ 127.164134] [<f881ccbd>] mptspi_dv_renegotiate_work+0x0/0xab [mptspi]
    > [ 127.164134] [<c043140a>] worker_thread+0x0/0xbf
    > [ 127.164134] [<c04314be>] worker_thread+0xb4/0xbf
    > [ 127.164134] [<c043393d>] autoremove_wake_function+0x0/0x33
    > [ 127.164134] [<c043387b>] kthread+0x3b/0x64
    > [ 127.164134] [<c0433840>] kthread+0x0/0x64
    > [ 127.164134] [<c040468f>] kernel_thread_helper+0x7/0x10
    > [ 127.164134] =======================
    > [ 127.164134] Code: ff 8b 87 8c 00 00 00 e8 b0 6c 03 00 8b 87 8c 00 00 00 e8 6e f8 ff ff 8d 65 f4 5b 5e 5f 5d c3 55 89 e5 57 56 53 83 ec 14 8b 78 20 <8b> 17 89 55 e0 e8 87 2a c5 c7 8b 55 e0 66 83 bf b2 02 00 00 00
    > [ 127.164134] EIP: [<f881ccc9>] mptspi_dv_renegotiate_work+0xc/0xab [mptspi] SS:ESP 0068:f78a1f58
    > [ 127.164147] ---[ end trace c0dc9c06e06bc602 ]---


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