We've had two machines crash (at a weekend of course! \o/ for IPMI remote reboot!) - both times the machines were pingable but ssh failed (no ssh banner via telnet). This time there was an oops. host is debian lenny: linux-image-2.6.26-1-amd64 kvm: 83+dfsg-1 box has several SMP guests on it and had been stable until quite recently (I think it's a pure load issue). Quad core Xeon E5420, 16GB RAM. Box oops is from has these guests: - Windows SBS 2008 (4GB - no virtio yet) - Centos 5.2 (4GB, no virtio (will change that!)) - Vista 32bit (1GB virtio) - Windows 2003 web edition (1GB virtio) Googling shows a patch from last year which I presume is in kvm-83: http://www.mail-archive.com/kvm@xxxxxxxxxxxxxxx/msg01312.html Oops follows: PGD 27a874067 PUD 4ba84d067 PMD 0 CPU 2 Modules linked in: ipmi_watchdog ipmi_devintf ipmi_si ipmi_msghandler tun kvm_intel kvm ipv6 bridge loop snd_pcm snd_timer snd soundcore snd_page_alloc iTCO_wdt pcspkr serio_raw psmouse rng_core usbhid hid i5000_edac ff_memless edac_core button shpchp pci_hotplug evdev dcdbas ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod sg sr_mod cdrom ide_pci_generic ide_core ata_generic sd_mod ata_piix libata dock ehci_hcd uhci_hcd mptsas mptscsih mptbase scsi_transport_sas scsi_mod bnx2 firmware_class thermal processor fan thermal_sys Pid: 1999, comm: kvm Not tainted 2.6.26-1-amd64 #1 RIP: 0010:[<ffffffffa02935c4>] [<ffffffffa02935c4>] :kvm:gfn_to_rmap+0x17/0x49 RSP: 0018:ffff81000a59ba38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000000fee01 RSI: fffffffffffff001 RDI: ffff810449894000 RBP: fffffffffffff001 R08: 000000000000000a R09: 000000000000000a R10: 0000000000411ef1 R11: 000000000000000b R12: ffff810174746ea0 R13: ffff810449894000 R14: ffff8101c90bc000 R15: ffffffffa02a9e00 FS: 0000000040bfa950(0000) GS:ffff8104bccfff40(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000048dff5000 CR4: 00000000000026e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kvm (pid: 1999, threadinfo ffff81000a59a000, task ffff8104bcec6280) Stack: 00000000002486dd 00000000002486dd ffff8101c90bc038 ffffffffa02936a5 000000000000000b ffff8101c90bc038 ffff810174746ea0 ffff810449894000 0000000000000038 ffffffffa029383a 0000000000000010 ffff81000a5614d8 Call Trace: [<ffffffffa02936a5>] ? :kvm:rmap_remove+0xaf/0x198 [<ffffffffa029383a>] ? :kvm:kvm_mmu_zap_page+0x8a/0x270 [<ffffffffa0294f1a>] ? :kvm:kvm_mmu_pte_write+0x2aa/0x721 [<ffffffffa0295c86>] ? :kvm:paging64_gva_to_gpa+0x21/0x44 [<ffffffffa028c79b>] ? :kvm:mark_page_dirty+0x1c/0x3f [<ffffffffa028f87a>] ? :kvm:emulator_write_phys+0x36/0x46 [<ffffffffa0290c93>] ? :kvm:emulator_write_emulated_onepage+0x68/0xe6 [<ffffffffa029ab36>] ? :kvm:x86_emulate_insn+0x378f/0x4245 [<ffffffffa02972b2>] ? :kvm:x86_decode_insn+0x9e4/0xad9 [<ffffffffa028f711>] ? :kvm:emulate_instruction+0x1a0/0x2d3 [<ffffffffa0294c35>] ? :kvm:kvm_mmu_page_fault+0x46/0x81 [<ffffffffa029231e>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x463/0x615 [<ffffffffa028d6ce>] ? :kvm:kvm_vcpu_ioctl+0xf3/0x3a9 [<ffffffff80228496>] ? __wake_up_common+0x41/0x74 [<ffffffff8022adc9>] ? __wake_up+0x38/0x4f [<ffffffff8024f82b>] ? wake_futex+0x1f/0x29 [<ffffffff8024fb2e>] ? futex_wake+0xbb/0xfa [<ffffffff8024ac3e>] ? getnstimeofday+0x39/0x98 [<ffffffff80248d42>] ? ktime_get_ts+0x22/0x4b [<ffffffff8023e200>] ? __dequeue_signal+0x19/0x15a [<ffffffff8023de87>] ? recalc_sigpending+0xe/0x38 [<ffffffff8023f17b>] ? dequeue_signal+0x8d/0x111 [<ffffffff8023fbe4>] ? sys_rt_sigtimedwait+0xf1/0x25f [<ffffffff8022f07f>] ? hrtick_set+0x88/0xf7 [<ffffffff802a6621>] ? vfs_ioctl+0x21/0x6b [<ffffffff802a68b3>] ? do_vfs_ioctl+0x248/0x261 [<ffffffff802a691d>] ? sys_ioctl+0x51/0x70 [<ffffffff8020beca>] ? system_call_after_swapgs+0x8a/0x8f RSP <ffff81000a59ba38> ---[ end trace 543d7cb274e6e19e ]--- Thanks, Adrian -- Email: adrian@xxxxxxxxxx -*- GPG key available on public key servers Debian GNU/Linux - the maintainable distribution -*- www.debian.org -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
