From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Subject: NULL pointer dereference at netxen_nic_probe+0x813/0x9a0
Date: Thu, 28 Oct 2010 12:50:50 -0600
Message-ID: <201010281250.50802.bjorn.helgaas@hp.com>
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Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
To: Amit Kumar Salecha <amit.salecha@qlogic.com>
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This is on current Linus upstream as of this morning (8128057)
on an HP DL785:

QLogic/NetXen Network Driver v4.0.74
netxen_nic 0000:07:00.0: PCI INT A -> GSI 30 (level, low) -> IRQ 30
netxen_nic 0000:07:00.0: setting latency timer to 64
netxen_nic 0000:07:00.0: 2MB memory map
netxen_nic 0000:07:00.0: loading firmware from flash
netxen_nic 0000:07:00.0: using 64-bit dma mask
kernel: Quad Gig LP Board S/N TI9ABK0266  Chip rev 0x42
netxen_nic 0000:07:00.0: firmware v4.0.520 [legacy]
netxen_nic 0000:07:00.0: irq 72 for MSI/MSI-X
netxen_nic 0000:07:00.0: irq 73 for MSI/MSI-X
netxen_nic 0000:07:00.0: irq 74 for MSI/MSI-X
netxen_nic 0000:07:00.0: irq 75 for MSI/MSI-X
netxen_nic 0000:07:00.0: using msi-x interrupts
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: [<ffffffff8160afda>] netxen_nic_probe+0x813/0x9a0
PGD 0 
Oops: 0002 [#1] SMP 
last sysfs file: 
CPU 0 
Modules linked in:

Pid: 1650, comm: work_for_cpu Not tainted 2.6.36-07338-g8128057 #269 /ProLiant DL785 G5   
RIP: 0010:[<ffffffff8160afda>]  [<ffffffff8160afda>] netxen_nic_probe+0x813/0x9a0
RSP: 0018:ffff8806138abe30  EFLAGS: 00010246
RAX: 0000000000000010 RBX: ffff8806139126c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880613895616 RDI: ffff880613912000
RBP: ffff8806138abe90 R08: 0000000000000000 R09: ffff8806138abb80
R10: 0000000000000000 R11: 0000000000000000 R12: ffff880613912000
R13: ffff8812174f7000 R14: ffff880613912000 R15: ffff8812174f7000
FS:  0000000000000000(0000) GS:ffff8800cfa00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000010 CR3: 0000000001c07000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process work_for_cpu (pid: 1650, threadinfo ffff8806138aa000, task ffff880616f12be0)
Stack:
 ffff8812174f7090 0000000000000246 ffff8806138abe90 ffff8812174f7000
 00008806138abfd8 0000000000000282 68cd0025b30068cc ffff880c17439d30
 ffff8812174f7090 ffff8812174f7000 ffff8812174f7208 0000000000000000
Call Trace:
 [<ffffffff81203696>] local_pci_probe+0x48/0x91
 [<ffffffff81052bae>] ? do_work_for_cpu+0x0/0x26
 [<ffffffff81052bc1>] do_work_for_cpu+0x13/0x26
 [<ffffffff81052bae>] ? do_work_for_cpu+0x0/0x26
 [<ffffffff81057a7b>] kthread+0x81/0x89
 [<ffffffff81003854>] kernel_thread_helper+0x4/0x10
 [<ffffffff810579fa>] ? kthread+0x0/0x89
 [<ffffffff81003850>] ? kernel_thread_helper+0x0/0x10
Code: 00 eb 15 49 8d bf 90 00 00 00 48 c7 c6 1b 2e aa 81 31 c0 e8 c0 4e cd ff 4c 89 f7 e8 d6 bb ee ff 49 8b 96 00 03 00 00 48 8d 42 10 <f0> 80 4a 10 01 4c 89 f7 e8 a3 7e ed ff 85 c0 41 89 c4 74 2a 49 
RIP  [<ffffffff8160afda>] netxen_nic_probe+0x813/0x9a0
 RSP <ffff8806138abe30>
CR2: 0000000000000010
---[ end trace 059c7071bbf8de1f ]---