linux-kernel - Re: in 2.6.23-rc3-git7 in do_cciss

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Date:	Thu, 21 Aug 2008 08:43:33 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	"Miller, Mike (OS Dev)" <Mike.Miller@...com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	scsi <linux-scsi@...r.kernel.org>,
	akpm <akpm@...ux-foundation.org>
Subject: Re: in 2.6.23-rc3-git7 in do_cciss_intr

On Thu, 21 Aug 2008 14:26:06 +0000 Miller, Mike (OS Dev) wrote:

> 
> 
> > -----Original Message-----
> > From: rdunlap [mailto:randy.dunlap@...cle.com]
> > Sent: Thursday, August 21, 2008 12:53 AM
> > To: lkml; scsi; Miller, Mike (OS Dev)
> > Subject: BUG: in 2.6.23-rc3-git7 in do_cciss_intr
> >
> > on x86_64, 4 proc, 8 GB RAM:
> >
> > calling  cciss_init+0x0/0x2e [cciss]
> > 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
> > cciss0: <0x3238> at PCI 0000:42:08.0 IRQ 503 using DAC
> > BUG: unable to handle kernel NULL pointer dereference at
> > 0000000000000248
> > IP: [<ffffffffa001bb68>] do_cciss_intr+0x627/0xa6c [cciss]
> > PGD 17e422067 PUD 17e423067 PMD 0
> > Oops: 0002 [1] SMP
> > CPU 2
> > Modules linked in: cciss(+) ehci_hcd ohci_hcd uhci_hcd
> > Pid: 0, comm: swapper Not tainted 2.6.27-rc3-git7 #1
> > RIP: 0010:[<ffffffffa001bb68>]  [<ffffffffa001bb68>]
> > do_cciss_intr+0x627/0xa6c [cciss]
> > RSP: 0018:ffff88027f66fee8  EFLAGS: 00010007
> > RAX: 0000000000000000 RBX: ffff88007f840270 RCX: 000000000000000c
> > RDX: 0000000000000000 RSI: ffff88027e5c0000 RDI: ffff88027e5c0000
> > RBP: ffff88027f66ff18 R08: 0000000000000000 R09: ffff88017fa95e88
> > R10: 0000000000000000 R11: ffff88027f66ff48 R12: ffff88027e5c0000
> > R13: 0000000000000000 R14: 00000000000001f7 R15: 0000000000000086
> > FS:  0000000000680850(0000) GS:ffff88017fc02c80(0000)
> > knlGS:0000000000000000
> > CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> > CR2: 0000000000000248 CR3: 000000017e425000 CR4: 00000000000006e0
> > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> > 0000000000000400 Process swapper (pid: 0, threadinfo
> > ffff88017fa94000, task ffff88027f63d340)
> > Stack:  ffff88027f66fee0 ffff88017e9b4800 0000000000000000
> > 0000000000000000
> >  00000000000001f7 0000000000000000 ffff88027f66ff48
> > ffffffff8026757e  ffffffff80719000 00000000000001f7
> > ffff88017e9b4800 ffffffff80719050 Call Trace:
> >  <IRQ>  [<ffffffff8026757e>] handle_IRQ_event+0x27/0x57
> > [<ffffffff80268d08>] handle_edge_irq+0xed/0x12e
> > [<ffffffff8020eaab>] do_IRQ+0xf6/0x167  [<ffffffff8020c471>]
> > ret_from_intr+0x0/0xa  <EOI>  [<ffffffff802122b1>] ?
> > default_idle+0x2b/0x40  [<ffffffff802124bf>] ?
> > c1e_idle+0xd4/0xdb  [<ffffffff8055677d>] ?
> > atomic_notifier_call_chain+0xf/0x11
> >  [<ffffffff8020ac6c>] ? cpu_idle+0x71/0x8f
> > [<ffffffff8054e752>] ? start_secondary+0x157/0x15c
> >
> >
> > Code: 8b 83 48 02 00 00 48 39 d8 74 37 49 39 9c 24 c0 00 01
> > 00 75 08 49 89 84 24 c0 00 01 00 48 8b 83 40 02 00 00 48 8b
> > 93 48 02 00 00 <48> 89 90 48 02 00 00 48 8b 93 48 02 00 00 48
> > 89 82 40 02 00 00 RIP  [<ffffffffa001bb68>]
> > do_cciss_intr+0x627/0xa6c [cciss]  RSP <ffff88027f66fee8>
> > CR2: 0000000000000248
> > ---[ end trace 902dc79a9e72d3ed ]---
> >
> 
> Randy,
> Sorry I haven't replied sooner. I saw your earlier mail, just been busy breaking stuff internally. Did this happen during driver init or runtime?

Hi Mike,

It's very much during driver init.

Full boot log and .config are attached.

Andrew:  I'll rerun the test ASAP.  Machine is busy atm.

---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/

View attachment "netcon-4883.log" of type "text/x-log" (71766 bytes)

Download attachment "kconfig.~1" of type "application/octet-stream" (47670 bytes)