Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Description of problem:
Boot guest with a data disks, then do live block copy on datadisk. During live block copy remove this data disk, qemu-kvm gets Segmentation fault.
Version-Release number of selected component (if applicable):
# uname -r;rpm -q qemu-kvm
2.6.32-251.el6.x86_64
qemu-kvm-0.12.1.2-2.265.el6rhev.x86_64
How reproducible:
2/2
Steps to Reproduce:
1.Boot guest with a data disk
2.Do block_stream on the data disk,
e.g.
(qemu) snapshot_blkdev datadisk /dev/disk/by-path/ip-10.66.90.100:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-3aa1f7d03-bdaf49b25d14f5d6-s2-wdai-145515-lun-0 qcow2
(qemu) block_stream datadisk
3.During live block copy ,remove this data disk
e.g.
(qemu) device_del datadisk1
qemu-kvm command line:
r -cpu SandyBridge -rtc base=localtime,clock=host,driftfix=slew -M rhel6.3.0 -enable-kvm -name rhel6.3-64 -smp 2,cores=2,threads=1,sockets=1 -m 4G -uuid c2b21082-bee1-41eb-a7fa-494782cd7128 -boot menu=on -drive file=/dev/wdai_test/blklv2,if=none,id=virtio-scsi-disk0,format=qcow2,cache=none,aio=native,media=disk,werror=stop,rerror=stop -device virtio-scsi-pci,id=scsibus1 -device scsi-hd,drive=virtio-scsi-disk0,bus=scsibus1.0,scsi-id=0,lun=0,id=lun0,bootindex=1 -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,id=net0,mac=44:37:E6:5E:A3:F7 -spice port=9000,disable-ticketing -vga qxl -monitor stdio -usb -device usb-tablet,id=input1 -serial unix:/home/wdai-live-blk,server,nowait -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -drive file=/home/datadisk.qcow2,if=none,format=qcow2,cache=none,aio=native,media=disk,werror=stop,rerror=stop,id=datadisk -device scsi-hd,drive=datadisk,bus=scsibus1.0,scsi-id=0,lun=1,id=datadisk1
Actual results:
(qemu)
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7e1eea8 in bdrv_co_is_allocated (bs=0x7ffff8853430, sector_num=4508672, nb_sectors=1024, pnum=0x7fffe2c35bec) at block.c:2120
2120 if (!bs->drv->bdrv_co_is_allocated) {
(gdb) bt
#0 0x00007ffff7e1eea8 in bdrv_co_is_allocated (bs=0x7ffff8853430, sector_num=4508672, nb_sectors=1024, pnum=0x7fffe2c35bec) at block.c:2120
#1 0x00007ffff7e40625 in stream_run (opaque=0x7ffff8aadac0) at block/stream.c:183
#2 0x00007ffff7e2696b in coroutine_trampoline (i0=<value optimized out>, i1=<value optimized out>) at coroutine-ucontext.c:129
#3 0x00007ffff5789630 in ?? () from /lib64/libc.so.6
#4 0x00007fffee55a530 in ?? ()
#5 0x0000000000000000 in ?? ()
Expected results:
After step 3, the data disk should exist during live block copy, after live block copy finish correctly, it is removed automatically.
Additional info:
Description of problem: Boot guest with a data disks, then do live block copy on datadisk. During live block copy remove this data disk, qemu-kvm gets Segmentation fault. Version-Release number of selected component (if applicable): # uname -r;rpm -q qemu-kvm 2.6.32-251.el6.x86_64 qemu-kvm-0.12.1.2-2.265.el6rhev.x86_64 How reproducible: 2/2 Steps to Reproduce: 1.Boot guest with a data disk 2.Do block_stream on the data disk, e.g. (qemu) snapshot_blkdev datadisk /dev/disk/by-path/ip-10.66.90.100:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-3aa1f7d03-bdaf49b25d14f5d6-s2-wdai-145515-lun-0 qcow2 (qemu) block_stream datadisk 3.During live block copy ,remove this data disk e.g. (qemu) device_del datadisk1 qemu-kvm command line: r -cpu SandyBridge -rtc base=localtime,clock=host,driftfix=slew -M rhel6.3.0 -enable-kvm -name rhel6.3-64 -smp 2,cores=2,threads=1,sockets=1 -m 4G -uuid c2b21082-bee1-41eb-a7fa-494782cd7128 -boot menu=on -drive file=/dev/wdai_test/blklv2,if=none,id=virtio-scsi-disk0,format=qcow2,cache=none,aio=native,media=disk,werror=stop,rerror=stop -device virtio-scsi-pci,id=scsibus1 -device scsi-hd,drive=virtio-scsi-disk0,bus=scsibus1.0,scsi-id=0,lun=0,id=lun0,bootindex=1 -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,id=net0,mac=44:37:E6:5E:A3:F7 -spice port=9000,disable-ticketing -vga qxl -monitor stdio -usb -device usb-tablet,id=input1 -serial unix:/home/wdai-live-blk,server,nowait -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -drive file=/home/datadisk.qcow2,if=none,format=qcow2,cache=none,aio=native,media=disk,werror=stop,rerror=stop,id=datadisk -device scsi-hd,drive=datadisk,bus=scsibus1.0,scsi-id=0,lun=1,id=datadisk1 Actual results: (qemu) Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7e1eea8 in bdrv_co_is_allocated (bs=0x7ffff8853430, sector_num=4508672, nb_sectors=1024, pnum=0x7fffe2c35bec) at block.c:2120 2120 if (!bs->drv->bdrv_co_is_allocated) { (gdb) bt #0 0x00007ffff7e1eea8 in bdrv_co_is_allocated (bs=0x7ffff8853430, sector_num=4508672, nb_sectors=1024, pnum=0x7fffe2c35bec) at block.c:2120 #1 0x00007ffff7e40625 in stream_run (opaque=0x7ffff8aadac0) at block/stream.c:183 #2 0x00007ffff7e2696b in coroutine_trampoline (i0=<value optimized out>, i1=<value optimized out>) at coroutine-ucontext.c:129 #3 0x00007ffff5789630 in ?? () from /lib64/libc.so.6 #4 0x00007fffee55a530 in ?? () #5 0x0000000000000000 in ?? () Expected results: After step 3, the data disk should exist during live block copy, after live block copy finish correctly, it is removed automatically. Additional info: