Bug 800710
| Summary: | migration crashes on the source after hot remove of virtio-scsi controller | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Sibiao Luo <sluo> |
| Component: | qemu-kvm | Assignee: | Paolo Bonzini <pbonzini> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.3 | CC: | acathrow, bcao, bsarathy, chayang, dawu, flang, juzhang, mdeng, michen, minovotn, mkenneth, pbonzini, qzhang, shu, sluo, tburke, virt-maint, wdai, wquan, xfu, xigao |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-0.12.1.2-2.264.el6 | Doc Type: | Bug Fix |
| Doc Text: |
No documentation needed
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-20 11:44:26 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 769712, 857935, 889075 | ||
|
Description
Sibiao Luo
2012-03-07 02:11:38 UTC
> 2. test for the second or other time:
> Segmentation fault on the src,
> (qemu) handle_dev_stop: stop
> Segmentation fault
> load of migration failed on the dest,
> (qemu) qemu: warning: error while loading state section id 3
> load of migration failed
>
I have got the backtrace log for the segmentation fault on the src:
(qemu) handle_dev_stop: stop
[New Thread 0x7fff48ffa700 (LWP 8201)]
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7e088a5 in ?? ()
(gdb) bt
#0 0x00007ffff7e088a5 in ?? ()
#1 0x00007ffff7e0fb99 in ?? ()
#2 0x00007ffff7f33c83 in ?? ()
#3 0x00007ffff7e75a60 in ?? ()
#4 0x00007ffff7e6d2de in ?? ()
#5 0x00007ffff7df9a70 in ?? ()
#6 0x00007ffff7e19ffa in ?? ()
#7 0x00007ffff7dfb59c in main ()
(gdb) q
(In reply to comment #2) > > 2. test for the second or other time: > > Segmentation fault on the src, > > (qemu) handle_dev_stop: stop > > Segmentation fault > > load of migration failed on the dest, > > (qemu) qemu: warning: error while loading state section id 3 > > load of migration failed > > > > I have got the backtrace log for the segmentation fault on the src: > > (qemu) handle_dev_stop: stop > [New Thread 0x7fff48ffa700 (LWP 8201)] > > Program received signal SIGSEGV, Segmentation fault. > 0x00007ffff7e088a5 in ?? () > (gdb) bt > #0 0x00007ffff7e088a5 in ?? () > #1 0x00007ffff7e0fb99 in ?? () > #2 0x00007ffff7f33c83 in ?? () > #3 0x00007ffff7e75a60 in ?? () > #4 0x00007ffff7e6d2de in ?? () > #5 0x00007ffff7df9a70 in ?? () > #6 0x00007ffff7e19ffa in ?? () > #7 0x00007ffff7dfb59c in main () > (gdb) q sorry for my careless, forget to install the qemu-kvm-debuginfo package in my host. I have retest it and get the backtrace log for the segmentation fault on the src. Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7f33c74 in virtio_save (vdev=0x7ffff88dbd00, f=0x7ffff9327fb0) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio.c:735 735 if (vdev->binding->save_config) (gdb) bt #0 0x00007ffff7f33c74 in virtio_save (vdev=0x7ffff88dbd00, f=0x7ffff9327fb0) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio.c:735 #1 0x00007ffff7e75a60 in vmstate_save (mon=<value optimized out>, f=0x7ffff9327fb0) at savevm.c:1459 #2 qemu_savevm_state_complete (mon=<value optimized out>, f=0x7ffff9327fb0) at savevm.c:1621 #3 0x00007ffff7e6d2de in migrate_fd_put_ready (opaque=0x7ffff92d6e40) at migration.c:406 #4 0x00007ffff7df9a70 in qemu_run_timers (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:1315 #5 main_loop_wait (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4058 #6 0x00007ffff7e19ffa in kvm_main_loop () at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2225 #7 0x00007ffff7dfb59c in main_loop (argc=20, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4234 #8 main (argc=20, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:6495 (gdb) *** Bug 800274 has been marked as a duplicate of this bug. *** Reproduced this issue with steps and environment as follows: host version: # uname -r 2.6.32-257.el6.x86_64 # rpm -qa |grep qemu-kvm qemu-kvm-0.12.1.2-2.262.el6.x86_64 steps: 1)boot guest with virtio-scsi disk usr/libexec/qemu-kvm -m 2G -smp 1 -cpu Penryn,+x2apic, -usbdevice tablet -drive file=/mnt/RHEL-Server-6.3-64-virtio.qcow2-newinstall5,format=qcow2,if=none,id=drive-ide0-0-0,werror=stop,rerror=stop,cache=none -device virtio-blk-pci,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -netdev tap,id=hostnet0,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,mac=00:10:20:2d:31:21,bus=pci.0,addr=0x4,id=net0 -boot order=cdn,once=n,menu=on -uuid 3290efd3-7c9e-44f9-b5f7-af0f3a1b3066 -rtc base=utc,clock=host,driftfix=slew -no-kvm-pit-reinjection -monitor stdio -name rhel6.1 -spice port=1000,disable-ticketing -vga qxl -device virtio-balloon-pci,bus=pci.0,id=balloon0 -drive file=/mnt/RHEL6.3-20120313.2-Server-x86_64-DVD1.iso,if=none,id=cdrom1 -device virtio-scsi-pci,id=cdrom -device scsi-cd,drive=cdrom1,scsi-id=0,lun=0 -nodefconfig 2)boot another vm with listen mode and without virtio-scsi disk for migration ...-incoming tcp:0:5800 3) do hot unplug virtio-scsi on src vm (qemu)device_del cdrom 4)do migration and results: (qemu)migrate -d tcp:10.66.65.153:5800 resutls: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7f30244 in virtio_save (vdev=0x7ffff88cbe50, f=0x7ffff9571a10) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio.c:735 735 if (vdev->binding->save_config) .. (gdb) bt #0 0x00007ffff7f30244 in virtio_save (vdev=0x7ffff88cbe50, f=0x7ffff9571a10) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio.c:735 #1 0x00007ffff7e6cdc0 in vmstate_save (mon=<value optimized out>, f=0x7ffff9571a10) at savevm.c:1459 #2 qemu_savevm_state_complete (mon=<value optimized out>, f=0x7ffff9571a10) at savevm.c:1621 #3 0x00007ffff7e64695 in migrate_fd_put_ready (opaque=0x7ffff89e8640) at migration.c:405 #4 0x00007ffff7deed70 in qemu_run_timers (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:1323 #5 main_loop_wait (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4024 #6 0x00007ffff7e1035a in kvm_main_loop () at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2244 #7 0x00007ffff7df17ac in main_loop (argc=20, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4202 #8 main (argc=20, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:6427 Verified this issue with steps and environment as follows: host version: # uname -r 2.6.32-257.el6.x86_64 # rpm -qa |grep qemu-kvm qemu-kvm-0.12.1.2-2.265.el6.x86_64 the steps as same as reproduce 1) 2) 3) 4) after step 4,the results: can be migrated successful,so this issue has been fixed.
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New Contents:
No documentation needed
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0746.html |