On Tue, 2011-05-24 at 14:45 -0700, Yinghai Lu wrote: > No, it does not work. I didn't say this wasn't without some effort, just thought it might give you a jump start. Alex > [ 592.792864] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 > [ 592.793279] IP: [<ffffffff8136271a>] dmar_match_scope+0x27/0xb6 > [ 592.804488] PGD 0 > [ 592.804629] Oops: 0000 [#1] SMP > [ 592.804849] CPU 1 > [ 592.804947] Modules linked in: > [ 592.824426] > [ 592.824521] Pid: 14498, comm: kworker/u:7 Tainted: G W 2.6.39-tip-yh-06738-g5d55a15-dirty #1043 Oracle Corporation Sun Fire X4800 M2 / > [ 592.844637] RIP: 0010:[<ffffffff8136271a>] [<ffffffff8136271a>] dmar_match_scope+0x27/0xb6 > [ 592.864410] RSP: 0018:ffff881ffce45a70 EFLAGS: 00010293 > [ 592.864673] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 > [ 592.884403] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88fffeef6000 > [ 592.904205] RBP: ffff881ffce45ab0 R08: 0000000000000000 R09: 0000000000000000 > [ 592.904535] R10: 0000000000000000 R11: ffff88dffedda320 R12: 0000000000000000 > [ 592.924419] R13: 0000000000000000 R14: ffff88fffeef6000 R15: 0000000000000000 > [ 592.924748] FS: 0000000000000000(0000) GS:ffff88207d800000(0000) knlGS:0000000000000000 > [ 592.944447] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 592.964196] CR2: 0000000000000010 CR3: 00000000023cb000 CR4: 00000000000006e0 > [ 592.964541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 592.984308] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 593.004091] Process kworker/u:7 (pid: 14498, threadinfo ffff881ffce44000, task ffff881ffce3c560) > [ 593.004492] Stack: > [ 593.024051] ffff881ffce45a80 ffffffff8134bf6a ffff881ffce45ab0 ffff88407d002640 > [ 593.024479] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > [ 593.044272] ffff881ffce45ae0 ffffffff81363e4a ffff881ffce45b00 ffff88dffe1c1d00 > [ 593.064027] Call Trace: > [ 593.064156] [<ffffffff8134bf6a>] ? pci_get_device+0x16/0x18 > [ 593.064441] [<ffffffff81363e4a>] device_to_iommu+0x4c/0x77 > [ 593.084054] [<ffffffff81364163>] domain_remove_one_dev_info+0x39/0x1fc > [ 593.084361] [<ffffffff8136637f>] device_notifier+0x52/0x78 > [ 593.104093] [<ffffffff81c24cc3>] notifier_call_chain+0x68/0x9f > [ 593.123814] [<ffffffff81193710>] ? sysfs_schedule_callback+0x1df/0x1df > [ 593.124125] [<ffffffff8109f209>] __blocking_notifier_call_chain+0x4c/0x61 > [ 593.143899] [<ffffffff8109f232>] blocking_notifier_call_chain+0x14/0x16 > [ 593.144207] [<ffffffff81414909>] __device_release_driver+0xcd/0xd2 > [ 593.163934] [<ffffffff81414933>] device_release_driver+0x25/0x32 > [ 593.164222] [<ffffffff814144bd>] bus_remove_device+0x8e/0x9f > [ 593.183934] [<ffffffff8141255e>] device_del+0x130/0x17f > [ 593.184186] [<ffffffff814125c3>] device_unregister+0x16/0x23 > [ 593.203888] [<ffffffff813473e5>] pci_stop_bus_device+0x61/0x83 > [ 593.223661] [<ffffffff8134c88a>] ? remove_callback+0x1f/0x3c > [ 593.223932] [<ffffffff813473b4>] pci_stop_bus_device+0x30/0x83 > [ 593.243652] [<ffffffff81347470>] pci_remove_bus_device+0x1a/0xba > [ 593.243955] [<ffffffff8134c896>] remove_callback+0x2b/0x3c > [ 593.263631] [<ffffffff8119372c>] sysfs_schedule_callback_work+0x1c/0x5f > [ 593.263962] [<ffffffff8109433b>] process_one_work+0x231/0x3e6 > [ 593.283667] [<ffffffff810942ac>] ? process_one_work+0x1a2/0x3e6 > [ 593.283958] [<ffffffff81094829>] worker_thread+0x17c/0x240 > [ 593.303651] [<ffffffff810add32>] ? trace_hardirqs_on+0xd/0xf > [ 593.303927] [<ffffffff810946ad>] ? manage_workers+0xab/0xab > [ 593.323617] [<ffffffff81099ea5>] kthread+0xa0/0xa8 > [ 593.323845] [<ffffffff810adbcc>] ? trace_hardirqs_on_caller+0x1f/0x178 > [ 593.343620] [<ffffffff81c29614>] kernel_thread_helper+0x4/0x10 > [ 593.343888] [<ffffffff81c218c4>] ? _raw_spin_unlock_irq+0x30/0x36 > [ 593.363642] [<ffffffff810add32>] ? trace_hardirqs_on+0xd/0xf > [ 593.383357] [<ffffffff81c21bc0>] ? retint_restore_args+0xe/0xe > [ 593.383624] [<ffffffff81099e05>] ? __init_kthread_worker+0x5b/0x5b > [ 593.403441] [<ffffffff81c29610>] ? gs_change+0xb/0xb > [ 593.403667] Code: 41 5f c9 c3 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 66 66 66 66 90 45 31 ed 89 f3 49 89 d4 49 89 fe 44 0f b7 f9 eb 72 > [ 593.424146] 8b 44 24 10 49 8b 16 48 8b 80 88 00 00 00 44 3b 38 75 57 48 > [ 593.443684] RIP [<ffffffff8136271a>] dmar_match_scope+0x27/0xb6 > [ 593.443968] RSP <ffff881ffce45a70> > [ 593.463319] CR2: 0000000000000010 > [ 593.463510] ---[ end trace 75ddbb3d94414ea9 ]--- > [ 593.465841] BUG: unable to handle kernel > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
