Bug 1019757
| Summary: | Qemu core dumpd during shutdown guest after hotunplug > hotplug scsi-block | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Qian Guo <qiguo> |
| Component: | qemu-kvm | Assignee: | Fam Zheng <famz> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, hhuang, juzhang, michen, 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: | 2014-04-28 06:45:29 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: | |||
*** Bug 1019759 has been marked as a duplicate of this bug. *** This issue is not related with libiscsi, I test with the options like this /usr/libexec/qemu-kvm ... -drive file=test.qcow2,if=none,id=drive-disk -device virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x6 -device scsi-hd,drive=drive-disk,bus=scsi1.0,id=iscsi-disk,serial=abcde -boot menu=on and hit this issue too. Reproduced this by qemu-kvm-1.5.3-9.el7.x86_64 Steps as comment #0 cli: # /usr/libexec/qemu-kvm -cpu Penryn -m 4G -smp 4,sockets=1,cores=4,threads=1 -M pc -enable-kvm -name rhel7 -nodefaults -nodefconfig -device virtio-balloon-pci,id=balloon0 -vnc :10 -vga std -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -monitor stdio -drive file=iscsi://10.66.9.10:3260/iqn.2013-11.com.example:storage.disk1.juli.xyz/4,if=none,media=disk,format=raw,rerror=stop,werror=stop,aio=native,id=scsi-disk0 -device virtio-scsi-pci,id=bus2 -device scsi-hd,bus=bus2.0,drive=scsi-disk0,id=disk0 -netdev tap,id=netdev0,vhost=on,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -device virtio-net,netdev=netdev0,id=vn1,mac=52:54:00:12:34:0a -drive file=test.qcow2,if=none,id=drive-disk -device virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x6 -device scsi-hd,drive=drive-disk,bus=scsi1.0,id=iscsi-disk,serial=abcde -boot menu=on and During shutdown guest, qemu coredumpd (qemu) device_del iscsi-disk (qemu) [Thread 0x7fffec46f700 (LWP 6628) exited] device_add scsi-block,drive=drive-disk,bus=scsi1.0,id=iscsi-disk Property 'scsi-block.drive' can't find value 'drive-disk' (qemu) Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffeb26c700 (LWP 6662)] bdrv_getlength (bs=0x0) at block.c:2765 2765 BlockDriver *drv = bs->drv; Missing separate debuginfos, use: debuginfo-install cyrus-sasl-md5-2.1.26-17.el7.x86_64 cyrus-sasl-plain-2.1.26-17.el7.x86_64 cyrus-sasl-scram-2.1.26-17.el7.x86_64 libdb-5.3.21-17.el7.x86_64 (gdb) bt #0 bdrv_getlength (bs=0x0) at block.c:2765 #1 0x00005555555daacd in bdrv_get_geometry (bs=<optimized out>, nb_sectors_ptr=nb_sectors_ptr@entry=0x7fffeb26b990) at block.c:2781 #2 0x0000555555689436 in scsi_disk_reset (dev=0x5555566bf030) at hw/scsi/scsi-disk.c:1982 #3 0x000055555563d839 in qdev_reset_one (dev=dev@entry=0x5555566bf030, opaque=opaque@entry=0x0) at hw/core/qdev.c:227 #4 0x000055555563cf30 in qdev_walk_children (dev=0x5555566bf030, devfn=devfn@entry=0x55555563d820 <qdev_reset_one>, busfn=busfn@entry=0x55555563b820 <qbus_reset_one>, opaque=opaque@entry=0x0) at hw/core/qdev.c:376 #5 0x000055555563d03a in qbus_walk_children (bus=bus@entry=0x5555566e6dc0, devfn=devfn@entry=0x55555563d820 <qdev_reset_one>, busfn=busfn@entry=0x55555563b820 <qbus_reset_one>, opaque=opaque@entry=0x0) at hw/core/qdev.c:360 #6 0x000055555563d0ad in qbus_reset_all (bus=bus@entry=0x5555566e6dc0) at hw/core/qdev.c:248 #7 0x0000555555777de3 in virtio_scsi_reset (vdev=<optimized out>) at /usr/src/debug/qemu-1.5.3/hw/scsi/virtio-scsi.c:451 #8 0x000055555577f9ae in virtio_reset (opaque=0x5555566e6ca8) at /usr/src/debug/qemu-1.5.3/hw/virtio/virtio.c:543 #9 0x00005555556b6a80 in virtio_ioport_write (val=0, addr=<optimized out>, opaque=0x5555566e64b0) at hw/virtio/virtio-pci.c:307 #10 virtio_pci_config_write (opaque=0x5555566e64b0, addr=<optimized out>, val=0, size=<optimized out>) at hw/virtio/virtio-pci.c:422 #11 0x00005555557860c2 in access_with_adjusted_size (addr=addr@entry=18, value=value@entry=0x7fffeb26bb58, size=1, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=0x555555786680 <memory_region_write_accessor>, opaque=opaque@entry=0x5555566e6b60) at /usr/src/debug/qemu-1.5.3/memory.c:364 #12 0x0000555555787597 in memory_region_iorange_write (iorange=<optimized out>, offset=18, width=1, data=0) at /usr/src/debug/qemu-1.5.3/memory.c:439 #13 0x0000555555784c62 in kvm_handle_io (count=1, size=1, direction=1, data=<optimized out>, port=49234) at /usr/src/debug/qemu-1.5.3/kvm-all.c:1497 #14 kvm_cpu_exec (env=env@entry=0x555556676f50) at /usr/src/debug/qemu-1.5.3/kvm-all.c:1649 #15 0x00005555557302a5 in qemu_kvm_cpu_thread_fn (arg=0x555556676f50) at /usr/src/debug/qemu-1.5.3/cpus.c:793 #16 0x00007ffff6251df3 in start_thread () from /lib64/libpthread.so.0 #17 0x00007ffff33843dd in clone () from /lib64/libc.so.6 (gdb) So this bug is reproduced by qemu-kvm-1.5.3-9.el7.x86_64. Retest this bug by qemu-kvm-1.5.3-60.el7.x86_64. Same steps as above, qemu does not hit coredumpd, and qemu can exited normally, so this bug has gone. I will close this bug as CURRENTRELEASE according to above, if anything wrong I made, please feel free to fix, Thanks, |
Description of problem: Test this issue with libiscsi backend scsi-block, hot unplug the scsi-block, then try to hot plug it, it failed with the error "Property 'scsi-block.drive' can't find value 'drive-disk' ", which is expected, but after that, if try to shutdown guest, qemu coredumpd Version-Release number of selected component (if applicable): # rpm -q qemu-kvm-rhev qemu-kvm-rhev-1.5.3-9.el7.x86_64 # uname -r 3.10.0-34.el7.x86_64 Guest is windows 8.1 32 bit, and with virtio-win-prewhql-0.1-72 installed How reproducible: 100% Steps to Reproduce: 1.Boot guest with libiscsi backend scsi-block device (a remote iscsi lun) # /usr/libexec/qemu-kvm -M pc -cpu Opteron_G3 -enable-kvm -m 4096 -smp 4,sockets=1,cores=4,threads=1 -usb -device usb-tablet,id=input0 -name rhel7 -rtc base=localtime,clock=host,driftfix=slew -monitor stdio -vnc :10 -vga std -netdev tap,id=netdev0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,mac=00:1b:21:7a:16:10,netdev=netdev0 -drive file=windows8u1cp1.raw,if=none,format=raw,id=virtio-disk0 -device virtio-blk-pci,drive=virtio-disk0,scsi=off,bootindex=0 -drive file=iscsi://10.66.90.100:3260/iqn.2001-05.com.equallogic:0-8a0906-6751f7d03-039f49b41f3525ca-s2-sluo-259030/0,if=none,id=drive-disk -iscsi initiator-name=iqn.1994-05.com.redhat:sluo,id=iqn -device virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x6 -device scsi-block,drive=drive-disk,bus=scsi1.0,id=iscsi-disk -boot menu=on 2.After boot up, hot unplug the scsi block via hmp (qemu) device_del iscsi-disk 3.try to hot added (qemu) device_add scsi-block,drive=drive-disk,bus=scsi1.0,id=iscsi-disk Property 'scsi-block.drive' can't find value 'drive-disk' 4.Inside guest, shutdown Actual results: qemu-kvm coredumpd from gdb: ... Program received signal SIGSEGV, Segmentation fault. bdrv_getlength (bs=0x0) at block.c:2765 2765 BlockDriver *drv = bs->drv; ... (gdb) bt #0 bdrv_getlength (bs=0x0) at block.c:2765 #1 0x00005555555daacd in bdrv_get_geometry (bs=<optimized out>, nb_sectors_ptr=nb_sectors_ptr@entry=0x7fffebb14990) at block.c:2781 #2 0x0000555555689436 in scsi_disk_reset (dev=0x5555564c0390) at hw/scsi/scsi-disk.c:1982 #3 0x000055555563d839 in qdev_reset_one (dev=dev@entry=0x5555564c0390, opaque=opaque@entry=0x0) at hw/core/qdev.c:227 #4 0x000055555563cf30 in qdev_walk_children (dev=0x5555564c0390, devfn=devfn@entry=0x55555563d820 <qdev_reset_one>, busfn=busfn@entry=0x55555563b820 <qbus_reset_one>, opaque=opaque@entry=0x0) at hw/core/qdev.c:376 #5 0x000055555563d03a in qbus_walk_children (bus=bus@entry=0x5555565abad0, devfn=devfn@entry=0x55555563d820 <qdev_reset_one>, busfn=busfn@entry=0x55555563b820 <qbus_reset_one>, opaque=opaque@entry=0x0) at hw/core/qdev.c:360 #6 0x000055555563d0ad in qbus_reset_all (bus=bus@entry=0x5555565abad0) at hw/core/qdev.c:248 #7 0x0000555555777de3 in virtio_scsi_reset (vdev=<optimized out>) at /usr/src/debug/qemu-1.5.3/hw/scsi/virtio-scsi.c:451 #8 0x000055555577f9ae in virtio_reset (opaque=0x5555565ab9b8) at /usr/src/debug/qemu-1.5.3/hw/virtio/virtio.c:543 #9 0x00005555556b6a80 in virtio_ioport_write (val=0, addr=<optimized out>, opaque=0x5555565ab1c0) at hw/virtio/virtio-pci.c:307 #10 virtio_pci_config_write (opaque=0x5555565ab1c0, addr=<optimized out>, val=0, size=<optimized out>) at hw/virtio/virtio-pci.c:422 #11 0x00005555557860c2 in access_with_adjusted_size (addr=addr@entry=18, value=value@entry=0x7fffebb14b58, size=1, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=0x555555786680 <memory_region_write_accessor>, opaque=opaque@entry=0x5555565ab870) at /usr/src/debug/qemu-1.5.3/memory.c:364 #12 0x0000555555787597 in memory_region_iorange_write (iorange=<optimized out>, offset=18, width=1, data=0) at /usr/src/debug/qemu-1.5.3/memory.c:439 #13 0x0000555555784c62 in kvm_handle_io (count=1, size=1, direction=1, data=<optimized out>, port=49234) at /usr/src/debug/qemu-1.5.3/kvm-all.c:1497 #14 kvm_cpu_exec (env=env@entry=0x55555651bdc0) at /usr/src/debug/qemu-1.5.3/kvm-all.c:1649 #15 0x00005555557302a5 in qemu_kvm_cpu_thread_fn (arg=0x55555651bdc0) at /usr/src/debug/qemu-1.5.3/cpus.c:793 #16 0x00007ffff625ade3 in start_thread () from /lib64/libpthread.so.0 #17 0x00007ffff33a01ad in clone () from /lib64/libc.so.6 Expected results: Can shutdown successfully and no coredumpd Additional info: