From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harald Dunkel Subject: Re: guest gets stuck on the migration from AMD to Intel Date: Mon, 30 Nov 2009 12:54:39 +0100 Message-ID: <4B13B27F.9060707@aixigo.de> References: <4B03C333.8070501@aixigo.de> <4B0CFAA9.7060904@redhat.com> <4B13A9CF.8040801@aixigo.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from mail.aixigo.de ([195.14.232.227]:10130 "EHLO gate1.ac.aixigo.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752276AbZK3Lyw (ORCPT ); Mon, 30 Nov 2009 06:54:52 -0500 In-Reply-To: <4B13A9CF.8040801@aixigo.de> Sender: kvm-owner@vger.kernel.org List-ID: Harald Dunkel wrote: > Avi Kivity wrote: >> Please set up serial console for the guest and any post any detailed >> messages printed there (e.g. a stacktrace). >> > > This is what I got on the new host: > > [ 677.532010] BUG: soft lockup - CPU#0 stuck for 61s! [ntpd:1665] > [ 677.532010] Modules linked in: loop serio_raw snd_pcsp psmouse virtio_balloon snd_pcm snd_timer snd soundcore snd_page_alloc evdev i2c_piix4 i2c_core button processor reiserfs ide_cd_mod cdrom ata_generic libata scsi_mod ide_pci_generic virtio_blk virtio_net piix uhci_hcd floppy ide_core ehci_hcd virtio_pci virtio_ring virtio thermal fan thermal_sys [last unloaded: scsi_wait_scan] > [ 677.532010] CPU 0: > [ 677.532010] Modules linked in: loop serio_raw snd_pcsp psmouse virtio_balloon snd_pcm snd_timer snd soundcore snd_page_alloc evdev i2c_piix4 i2c_core button processor reiserfs ide_cd_mod cdrom ata_generic libata scsi_mod ide_pci_generic virtio_blk virtio_net piix uhci_hcd floppy ide_core ehci_hcd virtio_pci virtio_ring virtio thermal fan thermal_sys [last unloaded: scsi_wait_scan] > [ 677.532010] Pid: 1665, comm: ntpd Not tainted 2.6.30-2-amd64 #1 Sorry, wrong kernel. Here is the output for 2.6.31.6: [ 374.736010] BUG: soft lockup - CPU#0 stuck for 61s! [ntpd:1657] [ 374.736010] Modules linked in: ipv6 loop snd_pcm snd_timer snd soundcore snd_page_alloc virtio_balloon psmouse serio_raw pcspkr evdev i2c_piix4 i2c_core button processor reiserfs ide_cd_mod cdrom ata_generic ata_piix libata scsi_mod ide_pci_generic virtio_blk virtio_net piix uhci_hcd virtio_pci virtio_ring virtio floppy ehci_hcd ide_core thermal fan thermal_sys [last unloaded: scsi_wait_scan] [ 374.736010] CPU 0: [ 374.736010] Modules linked in: ipv6 loop snd_pcm snd_timer snd soundcore snd_page_alloc virtio_balloon psmouse serio_raw pcspkr evdev i2c_piix4 i2c_core button processor reiserfs ide_cd_mod cdrom ata_generic ata_piix libata scsi_mod ide_pci_generic virtio_blk virtio_net piix uhci_hcd virtio_pci virtio_ring virtio floppy ehci_hcd ide_core thermal fan thermal_sys [last unloaded: scsi_wait_scan] [ 374.736010] Pid: 1657, comm: ntpd Not tainted 2.6.31.6 #1 [ 374.736010] RIP: 0010:[] [] kvm_deferred_mmu_op+0x58/0xd6 [ 374.736010] RSP: 0018:ffff88003d8ffc68 EFLAGS: 00000293 [ 374.736010] RAX: 0000000000000000 RBX: 0000000000000016 RCX: 000000003d8ffcaa [ 374.736010] RDX: 0000000000000000 RSI: 0000000000000018 RDI: ffff88003d8ffcaa [ 374.736010] RBP: ffffffff8100c5ae R08: 0000000000000080 R09: ffffea0000a8a598 [ 374.736010] R10: 000000000003a0d5 R11: 0000000000000001 R12: 00000000000280da [ 374.736010] R13: 000000003d8ffe48 R14: ffff880000001700 R15: 000000000000fdf0 [ 374.736010] FS: 00007fa19b21f6f0(0000) GS:ffff8800015ac000(0000) knlGS:0000000000000000 [ 374.736010] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 374.736010] CR2: 00007fa19b229000 CR3: 000000003dcad000 CR4: 00000000000006f0 [ 374.736010] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 374.736010] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 374.736010] Call Trace: [ 374.736010] [] ? kvm_deferred_mmu_op+0x4c/0xd6 [ 374.736010] [] ? kvm_mmu_write+0x2b/0x31 [ 374.736010] [] ? handle_mm_fault+0x300/0x77d [ 374.736010] [] ? seq_release_net+0x0/0x3b [ 374.736010] [] ? do_page_fault+0x25f/0x27b [ 374.736010] [] ? page_fault+0x25/0x30 [ 374.736010] [] ? copy_user_generic_string+0x2d/0x40 [ 374.736010] [] ? seq_read+0x300/0x380 [ 374.736010] [] ? proc_reg_read+0x6d/0x88 [ 374.736010] [] ? vfs_read+0xaa/0x166 [ 374.736010] [] ? sys_read+0x45/0x6e [ 374.736010] [] ? system_call_fastpath+0x16/0x1b : : Regards Harri