Bug 1067319
| Summary: | dst guest core dump and image was corrupt when doing ping-pong migration while guest is doing iozone | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | lijin <lijin> |
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> |
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, bcao, huding, juzhang, qzhang, sluo, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-02-20 08:51:41 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of bug 1048575 *** |
Description of problem: while guest is doing iozone,do ping-pong migration,guest core dump and guest image was corrupt. Version-Release number of selected component (if applicable): Red Hat Enterprise Linux Server release 7.0 Beta (Maipo) qemu-kvm-rhev-1.5.3-47.el7.x86_64 kernel-3.10.0-86.el7.x86_64 virtio-win-1.6.8-4.el6.noarch spice-server-0.12.4-5.el7.x86_64 guest:en_windows_7_ultimate_with_sp1_x86_dvd_u_677460.iso How reproducible: 3/3 Steps to Reproduce: 1.boot src gust with: /usr/libexec/qemu-kvm -M pc -m 2G -smp 2,cores=2 -drive file=win7-32.qcow2,format=qcow2,media=disk,if=none,cache=none,id=drive-scsi,serial=scsi1 -device virtio-scsi-pci,id=scsi0 -device scsi-hd,bus=scsi0.0,drive=drive-scsi,id=ide-scsi-pci1,bootindex=1 -rtc base=localtime,clock=host,driftfix=slew -no-kvm-pit-reinjection -name win7-32-scsi -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -usb -device usb-tablet -monitor stdio -spice disable-ticketing,port=5901 -vga qxl -global qxl-vga.revision=3 -netdev tap,id=hostnet1,script=/etc/qemu-ifup,downscript=no -device e1000,netdev=hostnet1,id=net1,mac=00:52:22:16:54:48,bus=pci.0 -cdrom /usr/share/virtio-win/virtio-win.iso -fda /usr/share/virtio-win/virtio-win_x86.vfd -device virtio-scsi-pci,id=scsi1 -drive file=data1.raw,format=raw,media=disk,if=none,id=drive,cache=none -device scsi-hd,bus=scsi1.0,drive=drive,id=scsi-disk 2.run iozone in guest: iozone.exe -az -b c:\aaaa -g 2g -y 32k -i 1 -i 0 3.boot dst gust with: /usr/libexec/qemu-kvm -M pc -m 2G -smp 2,cores=2 -drive file=win7-32.qcow2,format=qcow2,media=disk,if=none,cache=none,id=drive-scsi,serial=scsi1 -device virtio-scsi-pci,id=scsi0 -device scsi-hd,bus=scsi0.0,drive=drive-scsi,id=ide-scsi-pci1,bootindex=1 -rtc base=localtime,clock=host,driftfix=slew -no-kvm-pit-reinjection -name win7-32-scsi -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -usb -device usb-tablet -monitor stdio -spice disable-ticketing,port=5902 -vga qxl -global qxl-vga.revision=3 -netdev tap,id=hostnet1,script=/etc/qemu-ifup,downscript=no -device e1000,netdev=hostnet1,id=net1,mac=00:52:22:16:54:48,bus=pci.0 -cdrom /usr/share/virtio-win/virtio-win.iso -fda /usr/share/virtio-win/virtio-win_x86.vfd -device virtio-scsi-pci,id=scsi1 -drive file=data1.raw,format=raw,media=disk,if=none,id=drive,cache=none -device scsi-hd,bus=scsi1.0,drive=drive,id=scsi-disk -incoming tcp::5888 4.do ping-pong migration: migrate -d tcp:localhos:5888 migrate_set_downtime 3 Actual results: 1.after about 4 times migration,core dump occurred. 2.qemu error message as following: (qemu) qcow2: Preventing invalid write on metadata (overlaps with refcount block); image marked as corrupt. block I/O error in device 'drive-scsi': Input/output error (5) 3.guest image corrupt,cannot be reused. 1)while try to boot guest with command in step2,error displayed: qemu-kvm: -drive file=win7-32.qcow2,format=qcow2,media=disk,if=none,cache=none,id=drive-scsi,serial=scsi1: could not open disk image win7-32.qcow2: qcow2: Image is corrupt; cannot be opened read/write 2).# qemu-img check win7-32.qcow2 No errors were found on the image. 103633/819200 = 12.65% allocated, 26.75% fragmented, 0.00% compressed clusters Image end offset: 6793330688 Expected results: ping-pong migration can be finished successfully,no core dump,no errors. Additional info: I will upload the core dump file later (gdb) bt #0 0x00007fe2709b47f7 in copy_sectors (n_end=<optimized out>, n_start=0, cluster_offset=<optimized out>, start_sect=<optimized out>, bs=0x7fe27201f150) at block/qcow2-cluster.c:377 #1 perform_cow (bs=bs@entry=0x7fe27201f150, r=r@entry=0x7fe2722b6080, m=0x7fe2722b6050, m=0x7fe2722b6050) at block/qcow2-cluster.c:664 #2 0x00007fe2709b4d53 in qcow2_alloc_cluster_link_l2 (bs=bs@entry=0x7fe27201f150, m=0x7fe2722b6050) at block/qcow2-cluster.c:696 #3 0x00007fe2709ba578 in qcow2_co_writev (bs=0x7fe27201f150, sector_num=21109512, remaining_sectors=280, qiov=0x7fe272792bf8) at block/qcow2.c:1085 #4 0x00007fe2709a400a in bdrv_aligned_pwritev (flags=0, qiov=0x7fe272792bf8, bytes=143360, offset=<optimized out>, req=0x7fe272bc88f0, bs=0x7fe27201f150) at block.c:3018 #5 bdrv_co_do_pwritev (bs=0x7fe27201f150, offset=<optimized out>, bytes=143360, qiov=<optimized out>, flags=(unknown: 0)) at block.c:3147 #6 0x00007fe2709a4a94 in bdrv_co_do_writev (flags=<optimized out>, qiov=<optimized out>, nb_sectors=<optimized out>, sector_num=<optimized out>, bs=<optimized out>) at block.c:3171 #7 bdrv_co_do_rw (opaque=0x7fe272793520) at block.c:4470 #8 0x00007fe2709db1aa in coroutine_trampoline (i0=<optimized out>, i1=<optimized out>) at coroutine-ucontext.c:118 #9 0x00007fe26b58b570 in ?? () from /lib64/libc.so.6 #10 0x00007fff61781120 in ?? () #11 0x0000000000000000 in ?? () (gdb)