linux-kernel - [LKP] [pci] 38ada4d7c6b: general protection fault: 0000 [#1] SMP

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Date:	Tue, 17 Mar 2015 08:45:56 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [LKP] [pci] 38ada4d7c6b: general protection fault: 0000 [#1] SMP

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-next
commit 38ada4d7c6b416b2c41e67b721ebcfeec89e4751 ("pci: disable msi/msix at probe time")


+------------------------------------------+------------+------------+
|                                          | 91435d5741 | 38ada4d7c6 |
+------------------------------------------+------------+------------+
| boot_successes                           | 30         | 0          |
| early-boot-hang                          | 1          |            |
| boot_failures                            | 0          | 29         |
| BUG:unable_to_handle_kernel              | 0          | 9          |
| Oops                                     | 0          | 9          |
| RIP:pci_bus_read_config_word             | 0          | 29         |
| Kernel_panic-not_syncing:Fatal_exception | 0          | 29         |
| backtrace:__pci_register_driver          | 0          | 29         |
| backtrace:piix_init                      | 0          | 9          |
| backtrace:kernel_init_freeable           | 0          | 29         |
| general_protection_fault                 | 0          | 20         |
| backtrace:virtio_pci_driver_init         | 0          | 20         |
+------------------------------------------+------------+------------+


[    0.863966] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[    0.867094] ACPI: Power Button [PWRF]
[    0.868900] GHES: HEST is not enabled!
[    0.870151] general protection fault: 0000 [#1] SMP 
[    0.872006] Modules linked in:
[    0.872691] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.0.0-rc4-wl-00283-g3303cfa #2
[    0.872691] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[    0.872691] task: ffff8800135d0000 ti: ffff8800135cc000 task.ti: ffff8800135cc000
[    0.872691] RIP: 0010:[<ffffffff814d56c7>]  [<ffffffff814d56c7>] pci_bus_read_config_word+0x5b/0x88
[    0.872691] RSP: 0000:ffff8800135cfc08  EFLAGS: 00010046
[    0.872691] RAX: 005352435f003030 RBX: ffff8800123450e0 RCX: 0000000000000002
[    0.872691] RDX: 0000000000000006 RSI: 00000000822cdd50 RDI: ffff8800123450e0
[    0.872691] RBP: ffff8800135cfc48 R08: ffff8800135cfc14 R09: 0000000000000720
[    0.872691] R10: ffffea00004da600 R11: ffffffff81ee3381 R12: ffff8800135cfc66
[    0.872691] R13: 0000000000000246 R14: 00000000822cdd50 R15: 0000000000000006
[    0.872691] FS:  0000000000000000(0000) GS:ffff880013800000(0000) knlGS:0000000000000000
[    0.872691] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.872691] CR2: 0000000000000000 CR3: 000000000220b000 CR4: 00000000000406f0
[    0.872691] Stack:
[    0.872691]  ffff8800135cfc38 0000000081570ccf ffff8800135d0000 0000000000000000
[    0.872691]  0000000000000005 ffff8800135cfd20 ffffffff822c35c0 0000000000000000
[    0.872691]  ffff8800135cfc78 ffffffff814db1a6 ffff8800135cfc78 0000000000000246
[    0.872691] Call Trace:
[    0.872691]  [<ffffffff814db1a6>] __pci_bus_find_cap_start+0x1e/0x44
[    0.872691]  [<ffffffff814db850>] pci_find_capability+0x26/0x4e
[    0.872691]  [<ffffffff814db927>] pci_msi_off+0x1d/0xa3
[    0.872691]  [<ffffffff814dea72>] local_pci_probe+0x3c/0x8d
[    0.872691]  [<ffffffff814deb97>] pci_device_probe+0xd4/0xfa
[    0.872691]  [<ffffffff81568623>] driver_probe_device+0x128/0x307
[    0.872691]  [<ffffffff8156889d>] __driver_attach+0x5e/0x81
[    0.872691]  [<ffffffff8156883f>] ? __device_attach+0x3d/0x3d
[    0.872691]  [<ffffffff81566a0c>] bus_for_each_dev+0x6d/0x87
[    0.872691]  [<ffffffff8156807e>] driver_attach+0x1e/0x20
[    0.872691]  [<ffffffff81567cdc>] bus_add_driver+0x131/0x1f0
[    0.872691]  [<ffffffff823c9d3d>] ? virtio_mmio_init+0x14/0x14
[    0.872691]  [<ffffffff81568fb4>] driver_register+0x8f/0xcc
[    0.872691]  [<ffffffff823c9d3d>] ? virtio_mmio_init+0x14/0x14
[    0.872691]  [<ffffffff814ddf5f>] __pci_register_driver+0x4c/0x4e
[    0.872691]  [<ffffffff823c9d56>] virtio_pci_driver_init+0x19/0x1b
[    0.872691]  [<ffffffff8100032a>] do_one_initcall+0xfd/0x18f
[    0.872691]  [<ffffffff82380104>] kernel_init_freeable+0x1b7/0x23f
[    0.872691]  [<ffffffff81a0a3d3>] ? rest_init+0x87/0x87
[    0.872691]  [<ffffffff81a0a3e1>] kernel_init+0xe/0xdf
[    0.872691]  [<ffffffff81a1a898>] ret_from_fork+0x58/0x90
[    0.872691]  [<ffffffff81a0a3d3>] ? rest_init+0x87/0x87
[    0.872691] Code: 82 49 89 cc 41 89 d7 41 89 f6 e8 04 4c 54 00 49 89 c5 48 8b 83 b8 00 00 00 48 89 df 4c 8d 45 cc b9 02 00 00 00 44 89 fa 44 89 f6 <ff> 50 08 89 c3 8b 45 cc 4c 89 ee 48 c7 c7 80 92 66 82 66 41 89 
[    0.872691] RIP  [<ffffffff814d56c7>] pci_bus_read_config_word+0x5b/0x88
[    0.872691]  RSP <ffff8800135cfc08>
[    0.872691] ---[ end trace 9c6616ef4221cb81 ]---
[    0.872691] Kernel panic - not syncing: Fatal exception


Thanks,
Ying Huang


View attachment "config-4.0.0-rc1-00138-g38ada4d" of type "text/plain" (86730 bytes)

View attachment ".dmesg" of type "text/plain" (36645 bytes)

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