FYI, I got this BUG while playing around with some guests with kvm-48 on a Core2 system. Base kernel was 2.6.23+ff patches (that is why you see the LBR output; BTW that makes KVM complain too when it happens in a guest) . Haven't looked at it closely.
-Andi ------------[ cut here ]------------ kernel BUG at /home/src2/kvm-48/kernel/mmu.c:307! invalid opcode: 0000 [1] SMP CPU 1 Modules linked in: kvm_intel kvm xfrm_user xfrm4_tunnel af_key usblp cifs deflate zlib_deflate zlib_inflate twofish_x86_64 twofish_common serpent des md5 sha1 tunnel4 ipcomp esp4 ah4 sha256 pppoe pppox autofs4 ppp_generic snd_pcm_oss slhc snd_mixer_oss snd_seq ipt_MASQUERADE iptable_nat nf_nat_sip nf_conntrack_sip nf_nat_ftp nf_nat_irc nf_nat ip6t_LOG ip6t_REJECT ip6table_filter ip6_tables nf_conntrack_ipv4 xt_state cbc blkcipher nf_conntrack_ftp nf_conntrack_irc cpufreq_conservative nf_conntrack xt_tcpudp ipt_LOG ipt_REJECT iptable_filter ip_tables dm_crypt x_tables aes_x86_64 binfmt_misc eeprom lm85 hwmon_vid snd_usb_audio snd_usb_lib snd_hda_intel snd_rawmidi snd_pcm snd_seq_device snd_timer snd_hwdep pl2303 snd usbserial appledisplay i2c_i801 snd_page_alloc i2c_core Pid: 9021, comm: qemu-system-x86 Not tainted 2.6.23-BASIL #146 RIP: 0010:[<ffffffff881aa41f>] [<ffffffff881aa41f>] :kvm:mmu_memory_cache_alloc+0xd/0x29 RSP: 0018:ffff810109bd19d8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff810060990780 RCX: 0000000000000028 RDX: ffff810060990780 RSI: 0000000000000028 RDI: ffff810103ddc318 RBP: ffff810103ddc000 R08: 0000000000000000 R09: 0000000000000004 R10: 8000000016c6b027 R11: 0000000103ddc000 R12: ffff81004da46230 R13: 0000000000000004 R14: ffff810103ddc000 R15: ffff81004da46230 FS: 00002b89e3fb76e0(0000) GS:ffff81011fc10100(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000080464fc CR3: 0000000115022000 CR4: 00000000000026e0 DR0: ffffffff804df6a0 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff4ff1 DR7: 0000000000000702 Process qemu-system-x86 (pid: 9021, threadinfo ffff810109bd0000, task ffff810070005530) last branch before last exception/interrupt from [<ffffffff881a7752>] :kvm:kvm_vcpu_ioctl+0x579/0xf57 to [<ffffffff881a5078>] :kvm:kvm_load_guest_fpu+0x0/0x31 Stack: 0000000000016c6b ffffffff881aa50c 80000000854c7045 00000000854c7000 8000000000000045 ffffffff881aaef3 0000000000000001 0000000000016c6b 0000000000000000 0000000000000000 0000000016c6b000 0000000016c6b000 Call Trace: [<ffffffff881aa50c>] :kvm:rmap_add+0xc3/0xeb [<ffffffff881aaef3>] :kvm:paging64_set_pte_common+0x1c5/0x22e [<ffffffff881aafa6>] :kvm:paging64_set_pte+0x4a/0x4f [<ffffffff881ab264>] :kvm:kvm_mmu_pte_write+0x2b9/0x329 [<ffffffff881a6616>] :kvm:emulator_write_emulated_onepage+0x6e/0xce [<ffffffff881b0cec>] :kvm:x86_emulate_insn+0x410a/0x4152 [<ffffffff881ac438>] :kvm:x86_decode_insn+0x27b/0xa25 [<ffffffff881a6af5>] :kvm:emulate_instruction+0x152/0x290 [<ffffffff88249a55>] :kvm_intel:handle_exception+0x170/0x24a [<ffffffff881a7530>] :kvm:kvm_vcpu_ioctl+0x357/0xf57 [<ffffffff8025bf27>] file_read_actor+0xa0/0x11d [<ffffffff8022b79d>] enqueue_entity+0x17c/0x1a3 [<ffffffff8022ab03>] enqueue_task+0x13/0x21 [<ffffffff8022b4d5>] inc_nr_running+0x19/0x32 [<ffffffff8022dd6d>] try_to_wake_up+0x330/0x342 [<ffffffff80288c77>] core_sys_select+0x234/0x265 [<ffffffff8022c866>] __wake_up+0x38/0x4e [<ffffffff8023cbe8>] __dequeue_signal+0x19/0x15a [<ffffffff8023c4e7>] recalc_sigpending+0xe/0x25 [<ffffffff8023e002>] dequeue_signal+0x8d/0x115 [<ffffffff80248d64>] getnstimeofday+0x32/0x8a [<ffffffff80287a5d>] do_ioctl+0x21/0x6b [<ffffffff80287cea>] vfs_ioctl+0x243/0x25c [<ffffffff80287d3f>] sys_ioctl+0x3c/0x5d [<ffffffff8020bb6e>] system_call+0x7e/0x83 Code: 0f 0b eb fe ff c8 89 07 48 98 48 8b 54 c7 08 31 c0 fc 48 89 RIP [<ffffffff881aa41f>] :kvm:mmu_memory_cache_alloc+0xd/0x29 RSP <ffff810109bd19d8> ISO 9660 Extensions: RRIP_1991A ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
