#58 using VNC causes oops with latest code

[Wilson]

Hello,

CPU : Intel Core2 DUO
Works ok if -no-kvm is specified with qemu.

Using the latest kvm git code with kernel 2.6.22-rc3-git6 results in the following :

/usr/bin/qemu -boot c -m 512 -hda '/mnt/stor1/debtest.img' -cdrom '/mnt/stor1/debian-40r0-i386-DVD-1.iso' -net nic,vlan=0 -net tap,vlan=0,ifname= -localtime -vnc :7

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: Oops: 0000 [#1]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: SMP

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: CPU: 0

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: EIP: 0060:[<f90f3f81>]</f90f3f81> Not tainted VLI

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: EFLAGS: 00210206 (2.6.22-rc3-git6 #1)

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: EIP is at kvm_mmu_get_page+0x156/0x350 [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: eax: 642f3172 ebx: 642f3172 ecx: eff48b10 edx: ef53e000

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: esi: 00010020 edi: ef53e098 ebp: 00000000 esp: ef407e6c

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: Process qemu (pid: 6639, ti=ef406000 task=f5b04a20 task.ti=ef406000)

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: Stack: ef53f098 eff48b10 ef53f098 00000020 ef53f098 00000000 00000000 00000000

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: f90f420f 00000002 00000001 00000000 00000000 00000000 ef53f184 ef53f098

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: 00000020 ef53e000 f90f4348 ef53f098 fffffff5 f90f4412 ef53f098 f90f152a

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: Call Trace:

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<f90f420f>]</f90f420f> mmu_alloc_roots+0x94/0xec [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<f90f4348>]</f90f4348> init_kvm_mmu+0x49/0xbb [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<f90f4412>]</f90f4412> kvm_mmu_reset_context+0xf/0x1d [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<f90f152a>]</f90f152a> kvm_vm_ioctl+0x4a5/0x741 [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c015925f>]</c015925f> do_sync_read+0xc7/0x10a

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0149b7a>]</c0149b7a> __handle_mm_fault+0x357/0x86d

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<f90f1085>]</f90f1085> kvm_vm_ioctl+0x0/0x741 [kvm]

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0162c8b>]</c0162c8b> do_ioctl+0x1f/0x62

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0162efc>]</c0162efc> vfs_ioctl+0x22e/0x240

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0162f41>]</c0162f41> sys_ioctl+0x33/0x4a

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0102516>]</c0102516> sysenter_past_esp+0x5f/0x85

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: [<c0280000>]</c0280000> arp_constructor+0xbd/0x103

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: =======================

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: Code: 8b 56 28 83 c3 28 85 d2 89 50 14 74 03 89 4a 04 8b 54 24 04 89 4a 28 89 59 04 8b 4c 24 30 89 08 e9 f4 01 00 00 89 c3 85 db 74 17 <8b> 03 0f 18 00 90 8d 4b f8 89 4c 24 04 39 69 10 75 e8 e9 20 ff

Message from syslogd@disher at Mon Jun 4 12:53:25 2007 ...
disher kernel: EIP: [<f90f3f81>]</f90f3f81> kvm_mmu_get_page+0x156/0x350 [kvm] SS:ESP 0068:ef407e6c

[Avi Kivity]

patch

[Avi Kivity]

Logged In: YES
user_id=539971
Originator: NO

Attached patch should fix. Please test.
File Added: kvm-fix-oops-on-guest-context-switch.patch

[Wilson]

Logged In: YES
user_id=1676763
Originator: YES

Still appears to be crashing

/usr/bin/qemu -boot c -m 512 -hda '/mnt/stor1/debtest.img' -cdrom '/home/wilson/KNOPPIX_V5.1.1CD-2007-01-04-EN.iso' -net nic,vlan=0 -net tap,vlan=0,ifname= -localtime -vnc :7

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: Oops: 0000 [#1]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: SMP

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: CPU: 1

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: EIP: 0060:[<f90f7a43>]</f90f7a43> Not tainted VLI

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: EFLAGS: 00210202 (2.6.22-rc3-git6 #1)

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: EIP is at kvm_mmu_get_page+0x156/0x350 [kvm]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: eax: 0100007f ebx: 0100007f ecx: f43ebfc0 edx: d2cdc000

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: esi: 00010020 edi: d2cdc098 ebp: 00000000 esp: e4913ccc

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: Process qemu (pid: 13028, ti=e4912000 task=e35a1950 task.ti=e4912000)

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: Stack: d2cdd098 f43ebfc0 00000000 d2cdd098 d2cdd098 00000000 00000000 00000000

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: f90f7ceb 00000002 00000001 00000000 00000000 00000000 00000000 d2cdd738

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: d2cdd098 00000000 e4913d40 f90ead60 c036705c d35dd578 c0258688 19bfcc00

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: Call Trace:

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<f90f7ceb>]</f90f7ceb> kvm_mmu_load+0xae/0x12e [kvm]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<f90ead60>]</f90ead60> vmx_vcpu_run+0x472/0x6f4 [kvm_intel]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0258688>]</c0258688> tcp_packet+0xa12/0xa42

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<f90f5187>]</f90f5187> kvm_vcpu_ioctl+0x0/0xc92 [kvm]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<f90f540b>]</f90f540b> kvm_vcpu_ioctl+0x284/0xc92 [kvm]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c02736ca>]</c02736ca> tcp_snd_test+0x13/0xdb

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c02737d3>]</c02737d3> tcp_may_send_now+0x41/0x4e

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0274fa2>]</c0274fa2> tcp_xmit_retransmit_queue+0x151/0x268

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0270593>]</c0270593> tcp_ack+0x1557/0x16f6

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c02756f9>]</c02756f9> __tcp_push_pending_frames+0x4a2/0x7bc

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0155120>]</c0155120> add_partial+0xb/0x29

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0106cb2>]</c0106cb2> convert_fxsr_to_user+0xf4/0x148

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c010704a>]</c010704a> save_i387+0x122/0x134

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c028dbcd>]</c028dbcd> mutex_lock+0xb/0x1a

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0101941>]</c0101941> setup_sigcontext+0x105/0x189

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c011fb14>]</c011fb14> __dequeue_signal+0xd7/0x11c

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0102117>]</c0102117> do_notify_resume+0x502/0x5f8

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c024c054>]</c024c054> __qdisc_run+0x1e/0x188

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0273280>]</c0273280> tcp_rcv_established+0x5b5/0x631

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0106afe>]</c0106afe> convert_fxsr_from_user+0x1c/0xdc

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<f90f5187>]</f90f5187> kvm_vcpu_ioctl+0x0/0xc92 [kvm]

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0162c8b>]</c0162c8b> do_ioctl+0x1f/0x62

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c01070d1>]</c01070d1> restore_i387+0x75/0xc9

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0162efc>]</c0162efc> vfs_ioctl+0x22e/0x240

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0162f41>]</c0162f41> sys_ioctl+0x33/0x4a

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: [<c0102516>]</c0102516> sysenter_past_esp+0x5f/0x85

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: =======================

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: Code: 8b 56 28 83 c3 28 85 d2 89 50 14 74 03 89 4a 04 8b 54 24 04 89 4a 28 89 59 04 8b 4c 24 30 89 08 e9 f4 01 00 00 89 c3 85 db 74 17 <8b> 03 0f 18 00 90 8d 4b f8 89 4c 24 04 39 69 10 75 e8 e9 20 ff

Message from syslogd@disher at Mon Jun 4 20:44:33 2007 ...
disher kernel: EIP: [<f90f7a43>]</f90f7a43> kvm_mmu_get_page+0x156/0x350 [kvm] SS:ESP 0068:e4913ccc

[Avi Kivity]

Logged In: YES
user_id=539971
Originator: NO

Please describe exactly what you are doing, including qemu command line and pointer to installer image. I'd like to try and reproduce this.

[SourceForge Robot]

Logged In: YES
user_id=1312539
Originator: NO

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