RE: cciss: WARNING/BUG in do_cciss_intr (it's back)

[Miller, Mike (OS Dev)]

> -----Original Message-----
> From: Randy Dunlap [mailto:randy.dunlap@xxxxxxxxxx] 
> Sent: Wednesday, February 04, 2009 11:45 AM
> To: Miller, Mike (OS Dev); ISS StorageDev; scsi; Linux Kernel 
> Mailing List
> Subject: cciss: WARNING/BUG in do_cciss_intr (it's back)
> 
> Hi Mike,
> 
> Was there any debugging code added to try to help with this problem?
> or is that the WARNING before the BUG?
> 

Randy,
I think this is a different bug than the one you reported previously. Please open a new bugzilla.

Thanks,
-- mikem

> 
> Booting 2.6.29-rc3-git6 oopsed with:
> 
> calling  cciss_init+0x0/0x2e [cciss] @ 733 HP CISS Driver (v 3.6.20)
> ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 54 cciss 
> 0000:42:08.0: PCI INT A -> Link[LNKA] -> GSI 54 (level, high) 
> -> IRQ 54 cciss 0000:42:08.0: irq 56 for MSI/MSI-X IRQ 
> 56/cciss0: IRQF_DISABLED is not guaranteed on shared IRQs
> cciss0: <0x3238> at PCI 0000:42:08.0 IRQ 56 using DAC 
> ------------[ cut here ]------------
> WARNING: at drivers/block/cciss.c:225 
> do_cciss_intr+0x58f/0x99a [cciss]() Hardware name: ProLiant 
> BL685c G1 Modules linked in: cciss(+) ehci_hcd ohci_hcd uhci_hcd
> Pid: 0, comm: swapper Not tainted 2.6.29-rc3-git6 #1 Call Trace:
>  <IRQ>  [<ffffffff8023a741>] warn_slowpath+0xd3/0xf2  
> [<ffffffff80243a44>] ? __mod_timer+0xc1/0xd3  
> [<ffffffff8041469f>] ? smi_timeout+0xd9/0xe5  
> [<ffffffff8024f86a>] ? ktime_get_ts+0x49/0x4e  
> [<ffffffff804145c6>] ? smi_timeout+0x0/0xe5  
> [<ffffffffa0024c4b>] do_cciss_intr+0x58f/0x99a [cciss]  
> [<ffffffff8026ed21>] handle_IRQ_event+0x27/0x57  
> [<ffffffff8027057d>] handle_edge_irq+0xde/0x11f  
> [<ffffffff8020e302>] do_IRQ+0xdc/0x152  [<ffffffff8020ca13>] 
> ret_from_intr+0x0/0xa  <EOI> <4>---[ end trace a8b437cd48391e28 ]---
> BUG: unable to handle kernel NULL pointer dereference at 
> 00000000000000f4
> IP: [<ffffffffa0024c93>] do_cciss_intr+0x5d7/0x99a [cciss] PGD 0
> Oops: 0002 [#1] SMP
> last sysfs file: /sys/block/ram15/dev
> CPU 2
> Modules linked in: cciss(+) ehci_hcd ohci_hcd uhci_hcd
> Pid: 0, comm: swapper Tainted: G        W  2.6.29-rc3-git6 #1
> RIP: 0010:[<ffffffffa0024c93>]  [<ffffffffa0024c93>] 
> do_cciss_intr+0x5d7/0x99a [cciss]
> RSP: 0018:ffff88027f12fef0  EFLAGS: 00010046
> RAX: 0000000000000000 RBX: ffff88007f840270 RCX: 0000000000013888
> RDX: 0000000000008080 RSI: 0000000000000046 RDI: 0000000000000009
> RBP: ffff88027f12ff20 R08: 000000447f12fa70 R09: ffff88017e540700
> R10: 0000000000000000 R11: 0000000000000000 R12: ffff88007f8404b0
> R13: ffff88027e1a0000 R14: 0000000000000000 R15: 0000000000000086
> FS:  0000000000680850(0000) GS:ffff88017f121380(0000) 
> knlGS:0000000000000000
> CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> CR2: 00000000000000f4 CR3: 0000000000201000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 
> 0000000000000400 Process swapper (pid: 0, threadinfo 
> ffff88017f164000, task ffff88017fa5d4c0)
> Stack:
>  0000000000000001 ffff88027f126280 0000000000000000 0000000000000000
>  0000000000000038 0000000000000000 ffff88027f12ff50 
> ffffffff8026ed21  ffffffff8076e000 0000000000000038 
> ffff88027f126280 ffffffff8076e054 Call Trace:
>  <IRQ> <0> [<ffffffff8026ed21>] handle_IRQ_event+0x27/0x57  
> [<ffffffff8027057d>] handle_edge_irq+0xde/0x11f  
> [<ffffffff8020e302>] do_IRQ+0xdc/0x152  [<ffffffff8020ca13>] 
> ret_from_intr+0x0/0xa  <EOI> <0>Code: 50 08 48 c7 83 40 02 00 
> 00 00 00 00 00 49 c7 44 24 08 00 00 00 00 8b 83 34 02 00 00 
> 85 c0 0f 85 49 03 00 00 4c 8b b3 50 02 00 00 <41> c7 86 f4 00 
> 00 00 00 00 00 00 4c 8b 83 28 02 00 00 66 41 8b RIP  
> [<ffffffffa0024c93>] do_cciss_intr+0x5d7/0x99a [cciss]  RSP 
> <ffff88027f12fef0>
> CR2: 00000000000000f4
> ---[ end trace a8b437cd48391e29 ]---
> Kernel panic - not syncing: Fatal exception in interrupt
> 
> 
> 
> This is on an HP ProLiant BL685c G1, 4-proc system with
> 8 GB of RAM.  (same as previous reports)
> 
> 
> Rebooting worked successfully.
> 
> Thanks,
> --
> ~Randy
> --
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