On Mon, Oct 20, 2014 at 10:11:22AM -0400, Josh Boyer wrote: > Hi All, > > Booting my local KVM guest with a build of 3.18-rc1 this morning, it > hangs during the normal dracut splash screen When I configured the > guest to use a serial console, I got the output below. The guest is a > typical KVM guest created with virt-manager, using QXL as the display > driver. Nothing fancy about it. > > I'll try and do a bisect or some other experimentation today, but I > thought I would send this out now in case someone had an idea or was > already aware of it. Thanks for the report. Yes, multiqueue serial causes this. Unfortunately I didn't test with MQ :( Here's the fix: mid.gmane.org/1413813529-11044-1-git-send-email-cornelia.huck@xxxxxxxxxx > josh > > [ 2.048706] piix4_smbus 0000:00:01.3: SMBus Host Controller at > 0xb100, revision 0 > [ 2.069574] parport_pc 00:04: reported by Plug and Play ACPI > [ 2.200079] ------------[ cut here ]------------ > [ 2.200661] kernel BUG at include/linux/virtio_config.h:125! > [ 2.201004] invalid opcode: 0000 [#1] SMP > [ 2.201004] Modules linked in: snd_timer snd virtio_balloon > virtio_console serio_raw parport_pc parport i2c_piix4 soundcore > pvpanic btrfs qxl xor raid6_pq drm_kms_helper ttm drm 8139too > virtio_pci virtio_rini > [ 2.201004] CPU: 0 PID: 71 Comm: kworker/0:2 Not tainted > 3.18.0-0.rc1.git0.1.fc22.x86_64 #1 > [ 2.201004] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 2.201004] Workqueue: events control_work_handler [virtio_console] > [ 2.201004] task: ffff88003a83f5c0 ti: ffff88003a98c000 task.ti: > ffff88003a98c000 > [ 2.201004] RIP: 0010:[<ffffffffa0210032>] [<ffffffffa0210032>] > virtio_device_ready.part.12+0x4/0x6 [virtio_console] > [ 2.201004] RSP: 0018:ffff88003a98fd18 EFLAGS: 00010202 > [ 2.201004] RAX: 0000000000000007 RBX: ffff88003c9b3200 RCX: 0000000000000000 > [ 2.201004] RDX: 000000000000c192 RSI: ffffffffa02111b7 RDI: 000000000001c192 > [ 2.201004] RBP: ffff88003a98fd18 R08: ffff88003c9f82b0 R09: 00007f78ee144e90 > [ 2.201004] R10: 00000000ffffffff R11: 0000000000000246 R12: ffff880036cdd540 > [ 2.201004] R13: 0000000000000001 R14: ffff880036d1a800 R15: 0000000000000000 > [ 2.201004] FS: 0000000000000000(0000) GS:ffff88003fc00000(0000) > knlGS:0000000000000000 > [ 2.201004] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2.201004] CR2: 00007f78ee204a50 CR3: 000000003d6f9000 CR4: 00000000000406f0 > [ 2.201004] Stack: > [ 2.201004] ffff88003a98fd88 ffffffffa020f757 ffff880000000001 > ffff8800367ae600 > [ 2.201004] ffff88003fc14900 ffff88003a83f628 ffff88003a98fdc8 > 000000003a0d7984 > [ 2.201004] ffff88003a98fd88 ffff88003c831b40 ffff880036cdd584 > ffff880036cdd550 > [ 2.201004] Call Trace: > [ 2.201004] [<ffffffffa020f757>] add_port+0x3b7/0x3e0 [virtio_console] > [ 2.201004] [<ffffffffa020ffdc>] control_work_handler+0x39c/0x3e8 > [virtio_console] > [ 2.201004] [<ffffffff810af9e9>] process_one_work+0x149/0x3d0 > [ 2.201004] [<ffffffff810b006b>] worker_thread+0x11b/0x490 > [ 2.201004] [<ffffffff810aff50>] ? rescuer_thread+0x2e0/0x2e0 > [ 2.201004] [<ffffffff810b5218>] kthread+0xd8/0xf0 > [ 2.201004] [<ffffffff810b5140>] ? kthread_create_on_node+0x1b0/0x1b0 > [ 2.201004] [<ffffffff8174b53c>] ret_from_fork+0x7c/0xb0 > [ 2.201004] [<ffffffff810b5140>] ? kthread_create_on_node+0x1b0/0x1b0 > [ 2.201004] Code: 00 00 48 c7 c2 fc 11 21 a0 48 c7 c7 48 22 21 a0 > 48 8d 70 10 31 c0 e8 ee 83 19 e1 e9 3e fe ff ff 90 55 48 89 e5 0f 0b > 55 48 89 e5 <0f> 0b 55 48 89 e5 0f 0b 55 48 89 e5 e8 5d e1 ff ff 48 c7 > c > [ 2.201004] RIP [<ffffffffa0210032>] > virtio_device_ready.part.12+0x4/0x6 [virtio_console] > [ 2.201004] RSP <ffff88003a98fd18> > [ 2.232148] ---[ end trace a926e61ef6020bee ]--- > [ 2.233075] BUG: unable to handle kernel paging request at ffffffffffffffd8 > [ 2.233944] IP: [<ffffffff810b5850>] kthread_data+0x10/0x20 > [ 2.234004] PGD 1c17067 PUD 1c19067 PMD 0 > [ 2.234004] Oops: 0000 [#2] SMP > [ 2.234004] Modules linked in: snd_timer snd virtio_balloon > virtio_console serio_raw parport_pc parport i2c_piix4 soundcore > pvpanic btrfs qxl xor raid6_pq drm_kms_helper ttm drm 8139too > virtio_pci virtio_rini > [ 2.234004] CPU: 0 PID: 71 Comm: kworker/0:2 Tainted: G D > 3.18.0-0.rc1.git0.1.fc22.x86_64 #1 > [ 2.234004] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 2.234004] task: ffff88003a83f5c0 ti: ffff88003a98c000 task.ti: > ffff88003a98c000 > [ 2.234004] RIP: 0010:[<ffffffff810b5850>] [<ffffffff810b5850>] > kthread_data+0x10/0x20 > [ 2.234004] RSP: 0000:ffff88003a98f968 EFLAGS: 00010096 > [ 2.234004] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000f > [ 2.234004] RDX: 000000000000000b RSI: 0000000000000000 RDI: ffff88003a83f5c0 > [ 2.234004] RBP: ffff88003a98f968 R08: ffff88003a83f650 R09: 000000018011000a > [ 2.234004] R10: ffffffff813786bb R11: ffffea0000ea6a40 R12: ffff88003fc14880 > [ 2.234004] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88003a83f5c0 > [ 2.234004] FS: 0000000000000000(0000) GS:ffff88003fc00000(0000) > knlGS:0000000000000000 > [ 2.234004] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2.234004] CR2: 0000000000000028 CR3: 000000003cb85000 CR4: 00000000000406f0 > [ 2.234004] Stack: > [ 2.234004] ffff88003a98f988 ffffffff810b0465 ffff88003a98f988 > ffff88003a83f5c0 > [ 2.234004] ffff88003a98f9f8 ffffffff81747299 ffff88003a83f5c0 > 0000000000014880 > [ 2.234004] ffff88003a98ffd8 0000000000014880 ffff88003a98f9e8 > ffff88003a83f5c0 > [ 2.234004] Call Trace: > [ 2.234004] [<ffffffff810b0465>] wq_worker_sleeping+0x15/0xa0 > [ 2.234004] [<ffffffff81747299>] __schedule+0x509/0x7d0 > [ 2.234004] [<ffffffff81747589>] schedule+0x29/0x70 > [ 2.234004] [<ffffffff81099ab7>] do_exit+0x6e7/0xa60 > [ 2.234004] [<ffffffff81740516>] ? printk+0x70/0x86 > [ 2.234004] [<ffffffff81017710>] oops_end+0xa0/0xe0 > [ 2.234004] [<ffffffff81017bcb>] die+0x4b/0x70 > [ 2.234004] [<ffffffff81013f90>] do_trap+0xb0/0x150 > [ 2.234004] [<ffffffff810143f6>] do_error_trap+0xa6/0x180 > [ 2.234004] [<ffffffffa0210032>] ? > virtio_device_ready.part.12+0x4/0x6 [virtio_console] > [ 2.234004] [<ffffffff81736032>] ? klist_add_tail+0x32/0x40 > [ 2.234004] [<ffffffff81495149>] ? device_add+0x219/0x630 > [ 2.234004] [<ffffffff81014d10>] do_invalid_op+0x20/0x30 > [ 2.234004] [<ffffffff8174cf9e>] invalid_op+0x1e/0x30 > [ 2.234004] [<ffffffffa0210032>] ? > virtio_device_ready.part.12+0x4/0x6 [virtio_console] > [ 2.234004] [<ffffffffa0031109>] ? vp_get_status+0x19/0x20 [virtio_pci] > [ 2.234004] [<ffffffffa020f757>] add_port+0x3b7/0x3e0 [virtio_console] > [ 2.234004] [<ffffffffa020ffdc>] control_work_handler+0x39c/0x3e8 > [virtio_console] > [ 2.234004] [<ffffffff810af9e9>] process_one_work+0x149/0x3d0 > [ 2.234004] [<ffffffff810b006b>] worker_thread+0x11b/0x490 > [ 2.234004] [<ffffffff810aff50>] ? rescuer_thread+0x2e0/0x2e0 > [ 2.234004] [<ffffffff810b5218>] kthread+0xd8/0xf0 > [ 2.234004] [<ffffffff810b5140>] ? kthread_create_on_node+0x1b0/0x1b0 > [ 2.234004] [<ffffffff8174b53c>] ret_from_fork+0x7c/0xb0 > [ 2.234004] [<ffffffff810b5140>] ? kthread_create_on_node+0x1b0/0x1b0 > [ 2.234004] Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 > c3 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 87 68 04 00 00 > 55 48 89 e5 <48> 8b 40 d8 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 > 6 > [ 2.234004] RIP [<ffffffff810b5850>] kthread_data+0x10/0x20 > [ 2.234004] RSP <ffff88003a98f968> > [ 2.234004] CR2: ffffffffffffffd8 > [ 2.234004] ---[ end trace a926e61ef6020bef ]--- > [ 2.234004] Fixing recursive fault but reboot is needed! _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
