The current kernel no longer freezes the machine hard, though the process itself freezes (leaving a "QEMU/KVM [Stopped]" window that is not responsive) and can't be killed via [ctrl]-[c]. It also generates a kernel oops (which gets logged). So, I guess technically that's a little better :)
Kernel version: Linux version 2.6.24-18-generic ([EMAIL PROTECTED]) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Wed May 28 20:27:26 UTC 2008 KVM version: 1:62+dfsg-0ubuntu7 Here's the oops: [ 5376.777769] kvm: guest NX capability removed [ 5376.777876] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008 [ 5376.777884] printing eip: f8ce80e6 *pde = 00000000 [ 5376.777891] Oops: 0000 [#1] SMP [ 5376.777896] Modules linked in: forcedeth ndiswrapper rndis_host cdc_ether usbnet mii snd_rtctimer binfmt_misc rfcomm l2cap bluetooth af_packet ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp bridge kvm_amd kvm ppdev powernow_k8 cpufreq_ondemand cpufreq_conservative cpufreq_powersave cpufreq_stats freq_table cpufreq_userspace container dock sbs sbshc iptable_filter ip_tables x_tables parport_pc lp parport joydev 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 evdev psmouse snd_rawmidi serio_raw snd_seq_midi_event snd_seq snd_timer snd_seq_device k8temp snd soundcore i2c_nforce2 wmi_acer video output battery nvidia(P) ac button agpgart i2c_core shpchp pci_hotplug dm_multipath dm_mod ext3 jbd mbcache sd_mod sg sr_mod cdrom sata_nv ata_generic pata_acpi pata_amd libata scsi_mod ohci_hcd ehci_hcd usbcore thermal processor fan fbcon tileblit font bitblit softcursor fuse [ 5376.777985] [ 5376.777989] Pid: 4368, comm: kvm Tainted: P (2.6.24-18-generic #1) [ 5376.777994] EIP: 0060:[<f8ce80e6>] EFLAGS: 00010046 CPU: 0 [ 5376.778005] EIP is at svm_vcpu_run+0x266/0x290 [kvm_amd] [ 5376.778009] EAX: c44a3000 EBX: 00000000 ECX: 00000000 EDX: ffffffff [ 5376.778013] ESI: c442a000 EDI: f70c4000 EBP: c442a000 ESP: f6f9fd6c [ 5376.778018] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 5376.778021] Process kvm (pid: 4368, ti=f6f9e000 task=c44af140 task.ti=f6f9e000) [ 5376.778025] Stack: c047c94c c442a000 f8b2eded 00000000 c442a000 f70c4000 00000000 f8b2530d [ 5376.778035] 00000000 00000000 10002800 00000020 c46389c0 c442a000 0000ae80 f8b20c3d [ 5376.778045] c44af330 00000001 f41231c0 00000000 00000000 f425e380 c44af140 c44af140 [ 5376.778054] Call Trace: [ 5376.778062] [<f8b2eded>] kvm_cpu_has_interrupt+0x1d/0x40 [kvm] [ 5376.778092] [<f8b2530d>] kvm_arch_vcpu_ioctl_run+0xed/0x5f0 [kvm] [ 5376.778122] [<f8b20c3d>] kvm_vcpu_ioctl+0x34d/0x360 [kvm] [ 5376.778152] [<c031a7aa>] schedule+0x20a/0x600 [ 5376.778187] [<c0121084>] kunmap_atomic+0x84/0xb0 [ 5376.778191] [<c012103d>] kunmap_atomic+0x3d/0xb0 [ 5376.778204] [<c016d6bd>] file_read_actor+0xed/0x100 [ 5376.778225] [<c016e1fd>] do_generic_mapping_read+0x3ad/0x490 [ 5376.778239] [<c016d5d0>] file_read_actor+0x0/0x100 [ 5376.778255] [<c016da2f>] find_lock_page+0x2f/0xb0 [ 5376.778272] [<c016ff76>] filemap_fault+0x216/0x420 [ 5376.778296] [<c0121084>] kunmap_atomic+0x84/0xb0 [ 5376.778300] [<c012103d>] kunmap_atomic+0x3d/0xb0 [ 5376.778312] [<c017b61e>] __do_fault+0x22e/0x420 [ 5376.778351] [<c017d988>] handle_mm_fault+0x118/0x730 [ 5376.778365] [<c011d62a>] read_hpet+0xa/0x10 [ 5376.778381] [<f8b21589>] kvm_dev_ioctl_check_extension+0x29/0x40 [kvm] [ 5376.778397] [<f8b1f418>] kvm_dev_ioctl+0x68/0x180 [kvm] [ 5376.778421] [<f8b208f0>] kvm_vcpu_ioctl+0x0/0x360 [kvm] [ 5376.778441] [<c019dfab>] do_ioctl+0x2b/0x90 [ 5376.778448] [<c011d62a>] read_hpet+0xa/0x10 [ 5376.778459] [<c019e23e>] vfs_ioctl+0x22e/0x2b0 [ 5376.778466] [<c021ad70>] copy_to_user+0x30/0x60 [ 5376.778479] [<c019e316>] sys_ioctl+0x56/0x70 [ 5376.778491] [<c01043c2>] sysenter_past_esp+0x6b/0xa9 [ 5376.778530] ======================= [ 5376.778534] Code: 85 78 10 00 00 0f 21 d8 89 85 7c 10 00 00 8d 85 34 10 00 00 e8 ec e4 ff ff e9 91 fe ff ff 8d b4 26 00 00 00 00 8b 95 30 10 00 00 <8b> 4b 08 8b 85 2c 10 00 00 33 43 04 31 d1 09 c1 0f 85 bd fd ff [ 5376.778588] EIP: [<f8ce80e6>] svm_vcpu_run+0x266/0x290 [kvm_amd] SS:ESP 0068:f6f9fd6c [ 5376.778599] ---[ end trace f1e861267df71240 ]--- -- Hard freeze when invoking kvm (with kvm-amd module) https://bugs.launchpad.net/bugs/230569 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
