Bug#709989: (no subject)
I saw a similar issue.
Wheezy KVM host (Doesn't do anything else) with squeeze VMs (Latest
packages on host - Kernel was stock Debian one). All filesystems are
ext3 (no ext4). This was the stacktrace from kern.log (anonymised to
remove hostname):
[406699.787067] general protection fault: 0000 [#1] SMP
[406699.787091] CPU 5
[406699.787095] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT
xt_CHECKSUM iptable_mangle xt_tcpudp tun ip6table_filter ip6_tables
iptable_filter ip_tables ebtable_nat ebtables x_tables
cpufreq_conservative cpufreq_stats cpufreq_userspace cpufreq_powersave
dummy bridge stp ext3 jbd loop kvm_intel kvm acpi_cpufreq mperf coretemp
mxm_wmi crc32c_intel ghash_clmulni_intel snd_pcm snd_page_alloc
snd_timer snd aesni_intel aes_x86_64 aes_generic cryptd soundcore
i2c_i801 evdev shpchp pcspkr iTCO_wdt i2c_core iTCO_vendor_support
parport_pc parport wmi video button processor ext4 crc16 jbd2 mbcache
btrfs crc32c libcrc32c zlib_deflate dm_mod raid1 md_mod sg sd_mod
crc_t10dif ehci_hcd ahci r8169 libahci mii fan thermal thermal_sys
libata scsi_mod xhci_hcd usbcore usb_common [last unloaded: scsi_wait_scan]
[406699.787422]
[406699.787438] Pid: 3321, comm: kvm Not tainted 3.2.0-4-amd64 #1 Debian
3.2.46-1 MSI MS-7816/H87-G43 (MS-7816)
[406699.787481] RIP: 0010:[<ffffffff81108676>] [<ffffffff81108676>]
do_select+0x467/0x468
[406699.787524] RSP: 0018:ffff880758667da0 EFLAGS: 00010292
[406699.787545] RAX: 0000000000000001 RBX: 00007ff393d870e0 RCX:
dead000000200200
[406699.787582] RDX: dead000000100100 RSI: 0000000000000206 RDI:
ffff8807faf12dc0
[406699.787618] RBP: 00007ff393d87060 R08: 00000000000001c0 R09:
ffff88081a84a000
[406699.787654] R10: ffff88081a84a000 R11: ffff88081a84a000 R12:
00007ff393d87160
[406699.787691] R13: 0000000000000000 R14: ffff880758667dc8 R15:
0000000000000015
[406699.787727] FS: 00007ff3932048e0(0000) GS:ffff88081eb40000(0000)
knlGS:0000000000000000
[406699.787765] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[406699.787788] CR2: ffffffffff600400 CR3: 00000007585ee000 CR4:
00000000001426e0
[406699.787824] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[406699.787860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[406699.787896] Process kvm (pid: 3321, threadinfo ffff880758666000,
task ffff880758665610)
[406699.787934] Stack:
[406699.787950] fffeffff811087ec 0000000000000000 0000000000000000
0000001558665610
[406699.787989] 0000000000000000 0000000000178980 0000000000000000
0000000000000000
[406699.788028] 0000000000000080 0000000000000000 0000000000000000
0000000000000001
[406699.788067] Call Trace:
[406699.788087] [<ffffffff8106aebb>] ? clockevents_program_event+0xaa/0xce
[406699.788112] [<ffffffff81062050>] ? enqueue_hrtimer+0x43/0x67
[406699.788137] [<ffffffff8134eb77>] ? _raw_spin_unlock_irqrestore+0xe/0xf
[406699.788162] [<ffffffff81062904>] ? __hrtimer_start_range_ns+0x2b2/0x2c5
[406699.788188] [<ffffffff811b0118>] ? timerqueue_del+0x53/0x63
[406699.788211] [<ffffffff8134eb5f>] ? _raw_spin_lock_irq+0xa/0x14
[406699.788236] [<ffffffff8112be56>] ? eventfd_ctx_read+0x162/0x174
[406699.788259] [<ffffffff8103f57d>] ? try_to_wake_up+0x197/0x197
[406699.788283] [<ffffffff81108919>] ? sys_select+0x88/0xad
[406699.788306] [<ffffffff810fa4e9>] ? sys_read+0x5f/0x6b
[406699.788328] [<ffffffff81353b52>] ? system_call_fastpath+0x16/0x1b
[406699.788351] Code: e9 2a fd ff ff 45 31 f6 48 8d bc 24 a0 00 00 00 44
89 f5 e8 91 f8 ff ff 48 81 c4 28 03 00 00 89 e8 5b 5d 41 5c 41 5d 41 5e
41 5f <c3> 41 57 41 56 41 55 41 bd ea ff ff ff 41 54 49 89 cc 55 48 89
[406699.788456] RIP [<ffffffff81108676>] do_select+0x467/0x468
[406699.788480] RSP <ffff880758667da0>
[406699.788819] ---[ end trace a5726181a71094b2 ]---
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