Bug 1341531
| Summary: | qemu gets SIGSEGV when hot-plug a scsi hostdev device with duplicate target address | ||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Han Han <hhan> | ||||
| Component: | qemu-kvm-rhev | Assignee: | Fam Zheng <famz> | ||||
| Status: | CLOSED ERRATA | QA Contact: | FuXiangChun <xfu> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 7.3 | CC: | dyuan, hhan, juzhang, knoel, pingl, pzhang, rjones, virt-maint, xuzhang, yanyang, yisun, yuhuang | ||||
| Target Milestone: | rc | Keywords: | Regression | ||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | qemu-kvm-rhev-2.6.0-12.el7 | Doc Type: | If docs needed, set a value | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2016-11-07 21:13:37 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: | |||||||
| Attachments: |
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Since the bug not reproduced on qemu-kvm-rhev-2.3.0-31.el7_2.14.x86_64. Marked as regression. I cannot reproduce this on my machine, the error message is printed by QEMU but there is no crash. Could you provide a backtrace and/or a reproducing environment for me to access? Well, the backtrace is in my attachment of comment0. I will give you my environment later. I can reproduce it on qemu-kvm-rhev-2.6.0-9.el7.x86_64 *** Bug 1351444 has been marked as a duplicate of this bug. *** Fix included in qemu-kvm-rhev-2.6.0-12.el7 *** Bug 1318181 has been marked as a duplicate of this bug. *** *** Bug 1335480 has been marked as a duplicate of this bug. *** *** Bug 1328020 has been marked as a duplicate of this bug. *** *** Bug 1350889 has been marked as a duplicate of this bug. *** Reproduce: qemu-kvm-rhev-2.6.0-2.el7 kernel-3.10.0-497.el7.x86_64 libvirt-2.0.0-6.el7.x86_64 With same steps as commet 0, attaching the second hostdev scsi disk fails, and qemu quits. So the bug is reproduced. Verify: qemu-kvm-rhev-2.6.0-23.el7 kernel-3.10.0-497.el7.x86_64 libvirt-2.0.0-6.el7.x86_64 With same steps as comment 0, attaching the second hostdev scsi disk fails, and guest works well. So the bug is fixed. 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. https://rhn.redhat.com/errata/RHBA-2016-2673.html |
Created attachment 1163556 [details] all thread backtrace Description of problem: as subject Version-Release number of selected component (if applicable): qemu-kvm-rhev-2.6.0-4.el7.x86_64 libvirt-1.3.4-1.el7.x86_64 kernel-3.10.0-418.el7.x86_64 How reproducible: 100% Steps to Reproduce: I prepare a VM named 18550, two scsi disk sdb/sdc # virsh list Id Name State ---------------------------------------------------- 11 18550 # lsscsi [1:0:0:0] disk ATA WDC WD5000AAKS-7 1D05 /dev/sda [6:0:0:0] storage IET Controller 0001 - [6:0:0:1] disk IET VIRTUAL-DISK 0001 /dev/sdb [7:0:0:0] disk Kingston DT Ultimate G2 PMAP /dev/sdc Attach two hostdev scsi disk with the same target address: # cat hostdev1.xml <hostdev mode='subsystem' type='scsi' managed='no'> <source> <adapter name='scsi_host7'/> <address bus='0' target='0' unit='0'/> </source> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </hostdev> # cat hostdev2.xml <hostdev mode='subsystem' type='scsi' managed='no'> <source> <adapter name='scsi_host6'/> <address bus='0' target='0' unit='1'/> </source> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </hostdev> # virsh attach-device 18550 hostdev1.xml Device attached successfully # virsh attach-device 18550 hostdev2.xml error: Failed to attach device from hostdev2.xml error: internal error: unable to execute QEMU command 'device_add': lun already used by 'hostdev0' And I found the SIGSEGV of qemu: # abrt-cli ls id a26d4863a43c3df243f6f38c258c2bf0d4f6232c reason: qemu-kvm killed by SIGSEGV time: Wed 01 Jun 2016 03:51:17 PM CST cmdline: /usr/libexec/qemu-kvm -name 18550,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-11-18550/master-key.aes -machine pc-i440fx-rhel7.2.0,accel=kvm,usb=off,vmport=off -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 1d2cd91c-7848-40cf-91f3-a7de96afca78 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-11-18550/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x9 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive file=/var/lib/libvirt/images/18550.qcow2,format=qcow2,if=none,id=drive-virtio-disk0,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=27,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:b7:63:72,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-11-18550/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -chardev spicevmc,id=charchannel1,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -device usb-tablet,id=input0 -spice port=5900,addr=0.0.0.0,disable-ticketing,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on package: qemu-kvm-rhev-2.6.0-4.el7 uid: 107 (qemu) Directory: /var/spool/abrt/ccpp-2016-06-01-03:51:17-10590 Run 'abrt-cli report /var/spool/abrt/ccpp-2016-06-01-03:51:17-10590' for creating a case in Red Hat Customer Portal Actual results: SIGSEGV Expected results: no SIGSEGV Additional info: