From: Andi Kleen <ak-l3A5Bk7waGM@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: mmu.c:307 BUG with kvm-48
Date: Mon, 29 Oct 2007 11:31:48 +0100 [thread overview]
Message-ID: <200710291131.48929.ak@suse.de> (raw)
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
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next reply other threads:[~2007-10-29 10:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-29 10:31 Andi Kleen [this message]
[not found] ` <200710291131.48929.ak-l3A5Bk7waGM@public.gmane.org>
2007-10-29 10:42 ` mmu.c:307 BUG with kvm-48 Izik Eidus
[not found] ` <1193654536.4484.14.camel-siXIhNkUrCXckEVJwWePHtCfPAL7FxvL@public.gmane.org>
2007-10-29 12:06 ` Andi Kleen
[not found] ` <20071029120650.GD23491-KvMlXPVkKihbpigZmTR7Iw@public.gmane.org>
2007-10-30 3:29 ` Avi Kivity
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