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Date: Sun, 08 Oct 2006 00:02:07 -0700 From: "Martin J. Bligh" <mbligh@...igh.org> To: Andrew Morton <akpm@...l.org> Cc: Andy Whitcroft <apw@...dowen.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Greg Kroah-Hartman <gregkh@...e.de> Subject: Panic in pci_call_probe from 2.6.18-mm2 and 2.6.18-mm3 Not sure if you've seen this already ... catching up on test results. This was on NUMA-Q, on both -mm2 and -mm3. -mm1 didn't suffer from this problem. Full logs: mm2 - http://test.kernel.org/abat/50727/debug/console.log mm3 - http://test.kernel.org/abat/51442/debug/console.log config - http://test.kernel.org/abat/51442/build/dotconfig I'm guessing from the 00000004 that the pcibus_to_node(dev->bus) is failing because bus->sysdata is NULL. The disassembly and structure offsets seem to line up for that. #define pcibus_to_node(bus) ( (struct pci_sysdata *)((bus)->sysdata))->node struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ }; BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: c02060d4 *pde = 0042c001 *pte = 00000000 Oops: 0000 [#1] SMP last sysfs file: Modules linked in: CPU: 2 EIP: 0060:[<c02060d4>] Not tainted VLI EFLAGS: 00010286 (2.6.18-mm2-autokern1 #1) EIP is at pci_call_probe+0x19/0xb5 eax: 00000000 ebx: e778b400 ecx: e7400030 edx: c03b89a0 esi: e778b400 edi: 0000ffff ebp: e69a2fa0 esp: e740dea4 ds: 007b es: 007b ss: 0068 Process swapper (pid: 1, ti=e740c000 task=e7400030 task.ti=e740c000) Stack: ffffffed e778b400 c03b89a0 c02061a3 c03b89a0 e778b400 c03b873c c03b89a0 e778b400 c03b89d4 c02061d6 c03b89a0 e778b400 e778b400 c03b89d4 e778b448 c0224800 e778b448 c03b89d4 e778b448 00000000 c03b89d4 c0224936 e69a2fa0 Call Trace: [<c02061a3>] __pci_device_probe+0x33/0x47 [<c02061d6>] pci_device_probe+0x1f/0x34 [<c0224800>] really_probe+0x31/0xb9 [<c0224936>] driver_probe_device+0x93/0x9c [<c02249b5>] __driver_attach+0x0/0x7c [<c02249fc>] __driver_attach+0x47/0x7c [<c0223e98>] bus_for_each_dev+0x47/0x6d [<c01fd05a>] kobject_add+0xa9/0xf2 [<c0224a45>] driver_attach+0x14/0x18 [<c02249b5>] __driver_attach+0x0/0x7c [<c022437b>] bus_add_driver+0x53/0xd0 [<c0224d99>] driver_register+0x74/0x77 [<c02063ea>] __pci_register_driver+0x6b/0x7a [<c04146c3>] qla1280_init+0xc/0xf [<c04007ff>] do_initcalls+0x55/0xe8 [<c0184095>] proc_mkdir+0x12/0x16 [<c0135136>] init_irq_proc+0x21/0x2f [<c01003b8>] init+0x0/0x148 [<c010040d>] init+0x55/0x148 [<c01033c7>] kernel_thread_helper+0x7/0x10 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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