Bugs item #2138079, was opened at 2008-09-30 14:36 Message generated for change (Comment added) made by edwin128 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2138079&group_id=180599
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Torok Edwin (edwin128) Assigned to: Nobody/Anonymous (nobody) Summary: kvm locks up system Initial Comment: Sometimes KVM locks up the entire system for several minutes. When this happens I can't use neither the keyboard nor the mouse. I can login remotely using ssh and kill kvm, and then keyboard is restored after a short while, however I need to restart X, because the mouse remains grabbed. Last time it happened while using a NetBSD 4.0 (x86_64) image. I've done a commit all on the qemu console, then switched back to the guest, and I couldn't type anything, after that I couldn't exit the grab either, and after that the system locked up. I had gkrellm running, and it showed 1 core having 100% system time, while the other 3 cores were idle. Before this happened were at 99% user CPU usage, from another process (not kvm/qemu). System info: * distro: Debian unstable * CPU: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz * KVM version: 76 * host kernel: 2.6.26-1-amd64 #1 SMP Wed Sep 24 13:59:41 UTC 2008 x86_64 GNU/Linux * host arch: x86_64 * guest: x86_64, NetBSD 4.0 (on serial console, boot fails if using text console) * qemu cmdline: sudo qemu-system-x86_64 -hda netbsd4.img -snapshot -m 1024 -cdrom /tmp/x.iso * the problem only appears with kvm, I never encountered this when using -no-kvm, or when using qemu w/ kqemu. * this problem also occured when running a Solaris 10 guest OS dmesg output during lockup below. See also kerneloops entry: http://kerneloops.org/guilty.php?guilty=apic_mmio_read&version=2.6.26-release&start=1736704&end=1769471&class=oops [12518.803078] loaded kvm module (kvm-76) [12564.289154] kvm: emulating exchange as write [13926.593155] kvm: inject_page_fault: double fault 0xffffffff80c0bfa8 [14015.554904] BUG: soft lockup - CPU#1 stuck for 61s! [qemu-system-x86:20613] [14015.554904] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14015.554904] CPU 1: [14015.554904] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14015.554904] Pid: 20613, comm: qemu-system-x86 Tainted: P 2.6.26-1-amd64 #1 [14015.554904] RIP: 0010:[<ffffffffa0c0fa32>] [<ffffffffa0c0fa32>] :kvm:apic_mmio_read+0xf0/0x17d [14015.554904] RSP: 0018:ffff81000821dc88 EFLAGS: 00000202 [14015.554904] RAX: 62126c0cf17912e9 RBX: 0000000000000390 RCX: 62126c0cf2841a1b [14015.554904] RDX: 00000000010b0732 RSI: 00000000010b0732 RDI: fffffffffef4f8ce [14015.554904] RBP: 00000000fee0017b R08: 0000000000000001 R09: 0000000000000c12 [14015.554904] R10: 0000000000000000 R11: ffffffffa0c60c5b R12: 0000000380281e01 [14015.554904] R13: 0000000000c18dc0 R14: 0000000300000000 R15: ffffffff809b8390 [14015.554904] FS: 00000000420ce950(0000) GS:ffff81012fa7c8c0(0000) knlGS:0000000000000000 [14015.554904] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [14015.554904] CR2: 0000000000000000 CR3: 0000000091b53000 CR4: 00000000000026e0 [14015.554904] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14015.554904] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14015.554904] [14015.554904] Call Trace: [14015.554904] [<ffffffffa0c0f9d1>] ? :kvm:apic_mmio_read+0x8f/0x17d [14015.554904] [<ffffffffa0bffeb9>] ? :kvm:vcpu_find_mmio_dev+0x29/0x59 [14015.554904] [<ffffffffa0c001cd>] ? :kvm:emulator_read_emulated+0xa5/0xeb [14015.554904] [<ffffffffa0c096f5>] ? :kvm:x86_emulate_insn+0x10b/0x473a [14015.554904] [<ffffffffa0c09407>] ? :kvm:do_insn_fetch+0x67/0xa6 [14015.554904] [<ffffffffa0c0e6ca>] ? :kvm:x86_decode_insn+0x9a6/0xa84 [14015.554904] [<ffffffffa0c071eb>] ? :kvm:mmu_sync_fn+0x0/0x2b [14015.554904] [<ffffffffa0c003ac>] ? :kvm:emulate_instruction+0x199/0x25d [14015.554904] [<ffffffff804297c1>] ? __down_read+0x12/0xa1 [14015.554904] [<ffffffffa0c60c74>] ? :kvm_intel:handle_apic_access+0x19/0x42 [14015.554904] [<ffffffffa0c02daf>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x43c/0x64f [14015.554904] [<ffffffffa0bfeb81>] ? :kvm:kvm_vcpu_ioctl+0xf2/0x448 [14015.554904] [<ffffffffa0bfe8e9>] ? :kvm:kvm_vm_ioctl+0x208/0x221 [14015.554904] [<ffffffff802a6435>] ? vfs_ioctl+0x21/0x6b [14015.554904] [<ffffffff802a66c7>] ? do_vfs_ioctl+0x248/0x261 [14015.554904] [<ffffffff802a6731>] ? sys_ioctl+0x51/0x70 [14015.554904] [<ffffffff8020bf49>] ? sysret_signal+0x2b/0x45 [14015.554904] [<ffffffff8020be9a>] ? system_call_after_swapgs+0x8a/0x8f [14015.554904] [14081.050390] BUG: soft lockup - CPU#1 stuck for 61s! [qemu-system-x86:20613] [14081.050390] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14081.050390] CPU 1: [14081.050390] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14081.050390] Pid: 20613, comm: qemu-system-x86 Tainted: P 2.6.26-1-amd64 #1 [14081.050390] RIP: 0010:[<ffffffffa0c0fa3c>] [<ffffffffa0c0fa3c>] :kvm:apic_mmio_read+0xfa/0x17d [14081.050390] RSP: 0018:ffff81000821dc88 EFLAGS: 00000212 [14081.050390] RAX: 434cfcfecd26aebf RBX: 0000000000000390 RCX: 434cfcfece31b5f1 [14081.050390] RDX: 00000000010b0732 RSI: 00000000010b0732 RDI: fffffffffef4f8ce [14081.050390] RBP: 00000000fee0017b R08: 0000000000000001 R09: 0000000000000c12 [14081.050390] R10: 0000000000000000 R11: ffffffffa0c60c5b R12: 0000000380281e01 [14081.050390] R13: 0000000000c18dc0 R14: 0000000300000000 R15: ffffffff809b8390 [14081.050390] FS: 00000000420ce950(0000) GS:ffff81012fa7c8c0(0000) knlGS:0000000000000000 [14081.050390] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [14081.050390] CR2: 0000000000000000 CR3: 0000000091b53000 CR4: 00000000000026e0 [14081.050390] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14081.050390] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14081.050390] [14081.050390] Call Trace: [14081.050390] [<ffffffffa0c0f9d1>] ? :kvm:apic_mmio_read+0x8f/0x17d [14081.050390] [<ffffffffa0bffeb9>] ? :kvm:vcpu_find_mmio_dev+0x29/0x59 [14081.050390] [<ffffffffa0c001cd>] ? :kvm:emulator_read_emulated+0xa5/0xeb [14081.050390] [<ffffffffa0c096f5>] ? :kvm:x86_emulate_insn+0x10b/0x473a [14081.050390] [<ffffffffa0c09407>] ? :kvm:do_insn_fetch+0x67/0xa6 [14081.050390] [<ffffffffa0c0e6ca>] ? :kvm:x86_decode_insn+0x9a6/0xa84 [14081.050390] [<ffffffffa0c071eb>] ? :kvm:mmu_sync_fn+0x0/0x2b [14081.050390] [<ffffffffa0c003ac>] ? :kvm:emulate_instruction+0x199/0x25d [14081.050390] [<ffffffff804297c1>] ? __down_read+0x12/0xa1 [14081.050390] [<ffffffffa0c60c74>] ? :kvm_intel:handle_apic_access+0x19/0x42 [14081.050390] [<ffffffffa0c02daf>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x43c/0x64f [14081.050390] [<ffffffffa0bfeb81>] ? :kvm:kvm_vcpu_ioctl+0xf2/0x448 [14081.050390] [<ffffffffa0bfe8e9>] ? :kvm:kvm_vm_ioctl+0x208/0x221 [14081.050390] [<ffffffff802a6435>] ? vfs_ioctl+0x21/0x6b [14081.050390] [<ffffffff802a66c7>] ? do_vfs_ioctl+0x248/0x261 [14081.050390] [<ffffffff802a6731>] ? sys_ioctl+0x51/0x70 [14081.050390] [<ffffffff8020bf49>] ? sysret_signal+0x2b/0x45 [14081.050390] [<ffffffff8020be9a>] ? system_call_after_swapgs+0x8a/0x8f [14081.050390] [14083.200368] INFO: task clamd:8043 blocked for more than 120 seconds. [14083.200372] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14083.200375] clamd D 0000000000001000 0 8043 1 [14083.200380] ffff810125defad8 0000000000000086 ffff81007d9f1a00 0000000000000000 [14083.200386] 0000000000000000 ffff81012f05aad0 ffff8100781e5160 ffff81012f05ad58 [14083.200392] 0000000000000001 ffff81007d9f1a00 ffff8100c435bf00 0000000000000296 [14083.200397] Call Trace: [14083.200420] [<ffffffff80428753>] schedule_timeout+0x1e/0xad [14083.200429] [<ffffffff80428eb9>] __down+0x64/0x91 [14083.200436] [<ffffffff802495d6>] down+0x27/0x36 [14083.200464] [<ffffffffa035ede2>] :xfs:_xfs_buf_find+0x151/0x1da [14083.200490] [<ffffffffa035eebd>] :xfs:xfs_buf_get_flags+0x52/0x13c [14083.200517] [<ffffffffa035f6bb>] :xfs:xfs_buf_read_flags+0x12/0x7f [14083.200544] [<ffffffffa0354abf>] :xfs:xfs_trans_read_buf+0x47/0x2af [14083.200572] [<ffffffffa03301fa>] :xfs:xfs_da_do_buf+0x40f/0x636 [14083.200598] [<ffffffffa035e7ac>] :xfs:_xfs_buf_lookup_pages+0x298/0x2ca [14083.200633] [<ffffffffa033048b>] :xfs:xfs_da_read_buf+0x24/0x29 [14083.200659] [<ffffffffa0335633>] :xfs:xfs_dir2_leaf_getdents+0x381/0x61a [14083.200685] [<ffffffffa0335633>] :xfs:xfs_dir2_leaf_getdents+0x381/0x61a [14083.200712] [<ffffffffa035ff01>] :xfs:xfs_hack_filldir+0x0/0x5b [14083.200741] [<ffffffffa035ff01>] :xfs:xfs_hack_filldir+0x0/0x5b [14083.200768] [<ffffffffa03325c4>] :xfs:xfs_readdir+0xa6/0xb5 [14083.200796] [<ffffffffa035febb>] :xfs:xfs_file_readdir+0xff/0x145 [14083.200801] [<ffffffff802a6808>] filldir+0x0/0xb7 [14083.200809] [<ffffffff802a6808>] filldir+0x0/0xb7 [14083.200812] [<ffffffff802a6934>] vfs_readdir+0x75/0xa7 [14083.200818] [<ffffffff802a6b84>] sys_getdents+0x75/0xbd [14083.200826] [<ffffffff8020be9a>] system_call_after_swapgs+0x8a/0x8f [14083.200834] [14146.548708] BUG: soft lockup - CPU#1 stuck for 61s! [qemu-system-x86:20613] [14146.548708] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14146.548708] CPU 1: [14146.548708] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14146.548708] Pid: 20613, comm: qemu-system-x86 Tainted: P 2.6.26-1-amd64 #1 [14146.548708] RIP: 0010:[<ffffffffa0c0fa32>] [<ffffffffa0c0fa32>] :kvm:apic_mmio_read+0xf0/0x17d [14146.548708] RSP: 0018:ffff81000821dc88 EFLAGS: 00000216 [14146.548708] RAX: 248f234114b550af RBX: 0000000000000390 RCX: 248f234115c057e1 [14146.548708] RDX: 00000000010b0732 RSI: 00000000010b0732 RDI: fffffffffef4f8ce [14146.548708] RBP: 00000000fee0017b R08: 0000000000000001 R09: 0000000000000c12 [14146.548708] R10: 0000000000000000 R11: ffffffffa0c60c5b R12: 0000000380281e01 [14146.548708] R13: 0000000000c18dc0 R14: 0000000300000000 R15: ffffffff809b8390 [14146.548708] FS: 00000000420ce950(0000) GS:ffff81012fa7c8c0(0000) knlGS:0000000000000000 [14146.548708] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [14146.548708] CR2: 0000000000000000 CR3: 0000000091b53000 CR4: 00000000000026e0 [14146.548708] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14146.548708] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14146.548708] [14146.548708] Call Trace: [14146.548708] [<ffffffffa0c0f9d1>] ? :kvm:apic_mmio_read+0x8f/0x17d [14146.548708] [<ffffffffa0bffeb9>] ? :kvm:vcpu_find_mmio_dev+0x29/0x59 [14146.548708] [<ffffffffa0c001cd>] ? :kvm:emulator_read_emulated+0xa5/0xeb [14146.548708] [<ffffffffa0c096f5>] ? :kvm:x86_emulate_insn+0x10b/0x473a [14146.548708] [<ffffffffa0c09407>] ? :kvm:do_insn_fetch+0x67/0xa6 [14146.548708] [<ffffffffa0c0e6ca>] ? :kvm:x86_decode_insn+0x9a6/0xa84 [14146.548708] [<ffffffffa0c071eb>] ? :kvm:mmu_sync_fn+0x0/0x2b [14146.548708] [<ffffffffa0c003ac>] ? :kvm:emulate_instruction+0x199/0x25d [14146.548708] [<ffffffff804297c1>] ? __down_read+0x12/0xa1 [14146.548708] [<ffffffffa0c60c74>] ? :kvm_intel:handle_apic_access+0x19/0x42 [14146.548708] [<ffffffffa0c02daf>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x43c/0x64f [14146.548708] [<ffffffffa0bfeb81>] ? :kvm:kvm_vcpu_ioctl+0xf2/0x448 [14146.548708] [<ffffffffa0bfe8e9>] ? :kvm:kvm_vm_ioctl+0x208/0x221 [14146.548708] [<ffffffff802a6435>] ? vfs_ioctl+0x21/0x6b [14146.548708] [<ffffffff802a66c7>] ? do_vfs_ioctl+0x248/0x261 [14146.548708] [<ffffffff802a6731>] ? sys_ioctl+0x51/0x70 [14146.548708] [<ffffffff8020bf49>] ? sysret_signal+0x2b/0x45 [14146.548708] [<ffffffff8020be9a>] ? system_call_after_swapgs+0x8a/0x8f [14146.548708] [14212.047262] BUG: soft lockup - CPU#1 stuck for 61s! [qemu-system-x86:20613] [14212.047262] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14212.047262] CPU 1: [14212.047262] Modules linked in: kvm_intel kvm tun kqemu ppdev parport_pc lp parport nvidia(P) ipv6 video output ac battery xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand xfs reiserfs acpi_cpufreq freq_table coretemp it87 hwmon_vid sbp2 loop ide_cd_mod cdrom ide_pci_generic jmicron snd_pcm_oss snd_mixer_oss ide_core snd_hda_intel ohci1394 i2c_i801 serio_raw snd_seq_dummy i2c_core snd_seq_oss floppy ieee1394 ata_generic pcspkr snd_pcm psmouse snd_seq_midi_event r8169 sata_sil24 snd_seq snd_timer snd_seq_device ehci_hcd button uhci_hcd snd soundcore snd_page_alloc intel_agp evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid10 raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock [last unloaded: kvm] [14212.047262] Pid: 20613, comm: qemu-system-x86 Tainted: P 2.6.26-1-amd64 #1 [14212.047262] RIP: 0010:[<ffffffffa0c0fa32>] [<ffffffffa0c0fa32>] :kvm:apic_mmio_read+0xf0/0x17d [14212.047262] RSP: 0018:ffff81000821dc88 EFLAGS: 00000202 [14212.047262] RAX: 05d79760b9d55861 RBX: 0000000000000390 RCX: 05d79760bae05f93 [14212.047262] RDX: 00000000010b0732 RSI: 00000000010b0732 RDI: fffffffffef4f8ce [14212.047262] RBP: 00000000fee0017b R08: 0000000000000001 R09: 0000000000000c12 [14212.047262] R10: 0000000000000000 R11: ffffffffa0c60c5b R12: 0000000380281e01 [14212.047262] R13: 0000000000c18dc0 R14: 0000000300000000 R15: ffffffff809b8390 [14212.047262] FS: 00000000420ce950(0000) GS:ffff81012fa7c8c0(0000) knlGS:0000000000000000 [14212.047262] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [14212.047262] CR2: 0000000000000000 CR3: 0000000091b53000 CR4: 00000000000026e0 [14212.047262] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14212.047262] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14212.047262] [14212.047262] Call Trace: [14212.047262] [<ffffffffa0c0f9d1>] ? :kvm:apic_mmio_read+0x8f/0x17d [14212.047262] [<ffffffffa0bffeb9>] ? :kvm:vcpu_find_mmio_dev+0x29/0x59 [14212.047262] [<ffffffffa0c001cd>] ? :kvm:emulator_read_emulated+0xa5/0xeb [14212.047262] [<ffffffffa0c096f5>] ? :kvm:x86_emulate_insn+0x10b/0x473a [14212.047262] [<ffffffffa0c09407>] ? :kvm:do_insn_fetch+0x67/0xa6 [14212.047262] [<ffffffffa0c0e6ca>] ? :kvm:x86_decode_insn+0x9a6/0xa84 [14212.047262] [<ffffffffa0c071eb>] ? :kvm:mmu_sync_fn+0x0/0x2b [14212.047262] [<ffffffffa0c003ac>] ? :kvm:emulate_instruction+0x199/0x25d [14212.047262] [<ffffffff804297c1>] ? __down_read+0x12/0xa1 [14212.047262] [<ffffffffa0c60c74>] ? :kvm_intel:handle_apic_access+0x19/0x42 [14212.047262] [<ffffffffa0c02daf>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x43c/0x64f [14212.047262] [<ffffffffa0bfeb81>] ? :kvm:kvm_vcpu_ioctl+0xf2/0x448 [14212.047262] [<ffffffffa0bfe8e9>] ? :kvm:kvm_vm_ioctl+0x208/0x221 [14212.047262] [<ffffffff802a6435>] ? vfs_ioctl+0x21/0x6b [14212.047262] [<ffffffff802a66c7>] ? do_vfs_ioctl+0x248/0x261 [14212.047262] [<ffffffff802a6731>] ? sys_ioctl+0x51/0x70 [14212.047262] [<ffffffff8020bf49>] ? sysret_signal+0x2b/0x45 [14212.047262] [<ffffffff8020be9a>] ? system_call_after_swapgs+0x8a/0x8f [14212.047262] [14212.050788] INFO: task clamd:8043 blocked for more than 120 seconds. [14212.050792] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14212.050794] clamd D 0000000000001000 0 8043 1 [14212.050799] ffff810125defad8 0000000000000086 ffff81007d9f1a00 0000000000000000 [14212.050805] 0000000000000000 ffff81012f05aad0 ffff8100781e5160 ffff81012f05ad58 [14212.050811] 0000000000000001 ffff81007d9f1a00 ffff8100c435bf00 0000000000000296 [14212.050816] Call Trace: [14212.050840] [<ffffffff80428753>] schedule_timeout+0x1e/0xad [14212.050849] [<ffffffff80428eb9>] __down+0x64/0x91 [14212.050855] [<ffffffff802495d6>] down+0x27/0x36 [14212.050883] [<ffffffffa035ede2>] :xfs:_xfs_buf_find+0x151/0x1da [14212.050911] [<ffffffffa035eebd>] :xfs:xfs_buf_get_flags+0x52/0x13c [14212.050938] [<ffffffffa035f6bb>] :xfs:xfs_buf_read_flags+0x12/0x7f [14212.050965] [<ffffffffa0354abf>] :xfs:xfs_trans_read_buf+0x47/0x2af [14212.050991] [<ffffffffa03301fa>] :xfs:xfs_da_do_buf+0x40f/0x636 [14212.051017] [<ffffffffa035e7ac>] :xfs:_xfs_buf_lookup_pages+0x298/0x2ca [14212.051052] [<ffffffffa033048b>] :xfs:xfs_da_read_buf+0x24/0x29 [14212.051079] [<ffffffffa0335633>] :xfs:xfs_dir2_leaf_getdents+0x381/0x61a [14212.051104] [<ffffffffa0335633>] :xfs:xfs_dir2_leaf_getdents+0x381/0x61a [14212.051130] [<ffffffffa035ff01>] :xfs:xfs_hack_filldir+0x0/0x5b [14212.051160] [<ffffffffa035ff01>] :xfs:xfs_hack_filldir+0x0/0x5b [14212.051186] [<ffffffffa03325c4>] :xfs:xfs_readdir+0xa6/0xb5 [14212.051213] [<ffffffffa035febb>] :xfs:xfs_file_readdir+0xff/0x145 [14212.051217] [<ffffffff802a6808>] filldir+0x0/0xb7 [14212.051225] [<ffffffff802a6808>] filldir+0x0/0xb7 [14212.051229] [<ffffffff802a6934>] vfs_readdir+0x75/0xa7 [14212.051235] [<ffffffff802a6b84>] sys_getdents+0x75/0xbd [14212.051243] [<ffffffff8020be9a>] system_call_after_swapgs+0x8a/0x8f [14212.051252] ---------------------------------------------------------------------- >Comment By: Torok Edwin (edwin128) Date: 2008-10-02 17:02 Message: Here is the dissasembly, return address is at 129d1, so it is that callq *0x28(%rax). I can't bisect this, since I don't know if there is a working version (only recently bought a hardware virt capable CPU). 0000000000012942 <apic_mmio_read>: 12942: 41 56 push %r14 12944: 49 89 ce mov %rcx,%r14 12947: 41 55 push %r13 12949: 41 54 push %r12 1294b: 41 89 d4 mov %edx,%r12d 1294e: 89 f2 mov %esi,%edx 12950: 55 push %rbp 12951: 53 push %rbx 12952: 48 83 ec 10 sub $0x10,%rsp 12956: 48 8b 5f 20 mov 0x20(%rdi),%rbx 1295a: 2b 13 sub (%rbx),%edx 1295c: 88 d0 mov %dl,%al 1295e: 83 e0 0f and $0xf,%eax 12961: 41 88 c5 mov %al,%r13b 12964: 0f b6 c0 movzbl %al,%eax 12967: 44 01 e0 add %r12d,%eax 1296a: 83 f8 04 cmp $0x4,%eax 1296d: 7e 16 jle 12985 <apic_mmio_read+0x43> 1296f: 44 89 e2 mov %r12d,%edx 12972: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 12975: R_X86_64_32S .rodata.str1.1+0xbf6 12979: 31 c0 xor %eax,%eax 1297b: e8 00 00 00 00 callq 12980 <apic_mmio_read+0x3e> 1297c: R_X86_64_PC32 printk+0xfffffffffffffffc 12980: e9 2d 01 00 00 jmpq 12ab2 <apic_mmio_read+0x170> 12985: 89 d5 mov %edx,%ebp 12987: 83 e5 f0 and $0xfffffffffffffff0,%ebp 1298a: 81 fd ff 0f 00 00 cmp $0xfff,%ebp 12990: 0f 87 df 00 00 00 ja 12a75 <apic_mmio_read+0x133> 12996: 81 fd 90 00 00 00 cmp $0x90,%ebp 1299c: 74 19 je 129b7 <apic_mmio_read+0x75> 1299e: 81 fd 90 03 00 00 cmp $0x390,%ebp 129a4: 74 24 je 129ca <apic_mmio_read+0x88> 129a6: 81 fd 80 00 00 00 cmp $0x80,%ebp 129ac: 0f 85 ac 00 00 00 jne 12a5e <apic_mmio_read+0x11c> 129b2: e9 8d 00 00 00 jmpq 12a44 <apic_mmio_read+0x102> 129b7: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 129ba: R_X86_64_32S .rodata.str1.1+0xc1f 129be: 31 c0 xor %eax,%eax 129c0: e8 00 00 00 00 callq 129c5 <apic_mmio_read+0x83> 129c1: R_X86_64_PC32 printk+0xfffffffffffffffc 129c5: e9 ab 00 00 00 jmpq 12a75 <apic_mmio_read+0x133> 129ca: 48 8b 43 78 mov 0x78(%rbx),%rax 129ce: ff 50 28 callq *0x28(%rax) 129d1: 48 8b bb d0 00 00 00 mov 0xd0(%rbx),%rdi 129d8: 48 89 c1 mov %rax,%rcx 129db: 8b b7 80 03 00 00 mov 0x380(%rdi),%esi 129e1: 85 f6 test %esi,%esi 129e3: 0f 84 8c 00 00 00 je 12a75 <apic_mmio_read+0x133 ---------------------------------------------------------------------- Comment By: Avi Kivity (avik) Date: 2008-10-02 16:56 Message: Can you disassemble kvm.ko so we can see where the problem is (objdump -Dr kvm.ko; make sure it is exactly the binary that was running) ---------------------------------------------------------------------- Comment By: Glauber de Oliveira Costa (glommer) Date: 2008-10-02 16:44 Message: I had no luck creating an hypothesis for this. Did it used to work reliably in the past? If so, can you bisect to find the culprit commit? ---------------------------------------------------------------------- Comment By: Torok Edwin (edwin128) Date: 2008-09-30 18:49 Message: This just happened again, just after issuing a 'commit all' command in qemu while running NetBSD4.0, this time the keyboard&mouse wasn't captured, but the keyboard was unusable (it kept repeating 11111....). [I issued commit all command, got the qemu prompt back, then switched to the serial console, then I noticed 100% sys CPU usage, and the lockup in dmesg] I tried kill -9 as root on the kvm process, and it had no effect. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2138079&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
