Bugs item #2025527, was opened at 2008-07-23 09:39 Message generated for change (Comment added) made by jlokier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2025527&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: kernel Group: None Status: Open Resolution: None Priority: 7 Private: No Submitted By: Daniel van Vugt (danv) Assigned to: Nobody/Anonymous (nobody) Summary: kvm-71 crash (oops) in kvm_mmu_slot_remove_write_access Initial Comment: This seems to be happening regularly with kvm-71 so I have downgraded to kvm-70. So far so good... I'm running Ubuntu 8.04.1 desktop amd64 2.6.24-19-generic #1 SMP. [84184.614760] Unable to handle kernel paging request at 0000000000100100 RIP: [84184.614765] [<ffffffff88c67545>] :kvm:kvm_mmu_slot_remove_write_access+0x55/0x70 [84184.614784] PGD 3b98d067 PUD 5da31067 PMD 0 [84184.614788] Oops: 0000 [1] SMP [84184.614790] CPU 2 [84184.614792] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat kvm_intel kvm binfmt_misc rfcomm l2cap bluetooth ppdev acpi_cpufreq cpufreq_userspace cpufreq_ondemand cpufreq_stats cpufreq_conservative freq_table cpufreq_powersave dock video output container sbs sbshc battery ipv6 xt_limit xt_tcpudp ipt_LOG ipt_MASQUERADE ipt_TOS ipt_REJECT nf_conntrack_irc nf_conntrack_ftp ac xt_state lp snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi nvidia(P) usb_storage snd_seq_midi_event libusual sky2 i2c_core iTCO_wdt snd_seq iTCO_vendor_support snd_timer snd_seq_device parport_pc snd parport shpchp evdev pcspkr intel_agp pci_hotplug button soundcore iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack iptable_mangle iptable_filter ip_tables x_tables usbhid hid ext3 jbd mbcache sg sr_mod sd_mod cdrom pata_acpi ehci_hcd uhci_hcd ata_piix ata_generic libata scsi_mod usbcore thermal processor fan fbcon tileblit font bitblit softcursor fuse [84184.614855] Pid: 6868, comm: qemu Tainted: P 2.6.24-19-generic #1 [84184.614857] RIP: 0010:[<ffffffff88c67545>] [<ffffffff88c67545>] :kvm:kvm_mmu_slot_remove_write_access+0x55/0x70 [84184.614867] RSP: 0018:ffff81003bbefe20 EFLAGS: 00010246 [84184.614869] RAX: 0000000000000000 RBX: ffff81001addc000 RCX: 0000000000000000 [84184.614871] RDX: 0000000000100100 RSI: 0000000000000005 RDI: ffff81001addeaf0 [84184.614873] RBP: ffff81003bbefe88 R08: 00000000ec8fdb30 R09: 0000000000100100 [84184.614875] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [84184.614877] R13: ffff81001addc020 R14: 000000004010ae42 R15: 0000000000000000 [84184.614879] FS: 00007f80e48e56e0(0000) GS:ffff81007dc01a00(0000) knlGS:0000000000000000 [84184.614882] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [84184.614884] CR2: 0000000000100100 CR3: 000000003bad3000 CR4: 00000000000026e0 [84184.614885] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [84184.614888] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [84184.614890] Process qemu (pid: 6868, threadinfo ffff81003bbee000, task ffff81005d910fc0) [84184.614892] Stack: ffffffff88c630f2 000000000000000e 000000000001fffe 0000000100000000 [84184.614897] ffff81001addc000 ffff81003bbefe88 000000004010ae42 0000000000000005 [84184.614900] ffffffff88c60771 ffff810001022598 ffffffff8062b540 0000000000000082 [84184.614904] Call Trace: [84184.614912] [<ffffffff88c630f2>] :kvm:kvm_vm_ioctl_get_dirty_log+0x82/0xc0 [84184.614926] [<ffffffff88c60771>] :kvm:kvm_vm_ioctl+0xd1/0x200 [84184.614934] [<ffffffff80256e0e>] hrtimer_start+0xee/0x170 [84184.614941] [<ffffffff80233e20>] default_wake_function+0x0/0x10 [84184.614948] [<ffffffff802c070f>] do_ioctl+0x2f/0xa0 [84184.614953] [<ffffffff802c09a0>] vfs_ioctl+0x220/0x2c0 [84184.614957] [<ffffffff802b32fd>] vfs_read+0xed/0x190 [84184.614963] [<ffffffff802c0ad1>] sys_ioctl+0x91/0xb0 [84184.614971] [<ffffffff8020c37e>] system_call+0x7e/0x83 [84184.614981] [84184.614982] [84184.614982] Code: 49 8b 11 49 39 f9 0f 18 0a 75 b9 f3 c3 66 66 66 66 66 2e 0f [84184.614991] RIP [<ffffffff88c67545>] :kvm:kvm_mmu_slot_remove_write_access+0x55/0x70 [84184.615000] RSP <ffff81003bbefe20> [84184.615002] CR2: 0000000000100100 [84184.615005] ---[ end trace dbc91eb222360215 ]--- ---------------------------------------------------------------------- Comment By: Jamie Lokier (jlokier) Date: 2008-07-31 06:36 Message: Logged In: YES user_id=1233069 Originator: NO Actually, I'm running kvm-69 userspace, but whatever version of the kernel modules comes with Ubuntu's linux-image-2.6.24-19.21 package (current in Ubuntu 8.04 at this time). I don't know what the version of those modules is, but the userspace which accompanies Ubuntu 8.04 is kvm-62, so that might be the kernel module version (or approximately) too. So this crash might be quite an old bug in the kernel module. ---------------------------------------------------------------------- Comment By: Jamie Lokier (jlokier) Date: 2008-07-31 06:29 Message: Logged In: YES user_id=1233069 Originator: NO That is, kvm-69 compiled by me on a _32_-bit host. (I don't have a 64-bit host.) It's quite a nasty crash, too: kernel thinks the VNC port and tap devices are still bound, but the kvm process is stuck and cannot die. So you can't start another kvm on the same VNC port and/or tap device, without rebooting the host Linux. ---------------------------------------------------------------------- Comment By: Jamie Lokier (jlokier) Date: 2008-07-31 06:28 Message: Logged In: YES user_id=1233069 Originator: NO That is, kvm-69 compiled by me on a _32_-bit host. (I don't have a 64-bit host.) It's quite a nasty crash, too: kernel thinks the VNC port and tap devices are still bound, but the kvm process is stuck and cannot die. So you can't start another kvm on the same VNC port and/or tap device, without rebooting the host Linux. ---------------------------------------------------------------------- Comment By: Jamie Lokier (jlokier) Date: 2008-07-31 06:16 Message: Logged In: YES user_id=1233069 Originator: NO I'm using kvm-69 and I've just had a similar crash... ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2025527&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
