Re: [Qemu-discuss] need your help for some crash trouble of qemu-system-x86_64

[wyang]

On 2016年12月21日 07:57, Fam Zheng wrote:
> On Tue, 12/20 18:29, Zhenhao Zhang wrote:
> > hello everyone,
> Hi Zhenhao, thanks for the report.
>
> >      I am sorry to trouble you. but, I meet some trouble when using qemu+kvm
> > +libvirt.  The qemu-system-x86_64 crash and get some errer info from logs
> > :./var/log/libvirt/qemu/instance-000006d3.log, as bellow,
> >
> > 2016-05-25 10:28:52.565+0000: starting up libvirt version: 1.2.16, package:
> > 1.2.16-2ubuntu11.15.10.4~cloud0, qemu version: 2.3.0 (Debian
> > 1:2.3+dfsg-5ubuntu9.2~cloud0)
> > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
> > QEMU_AUDIO_DRV=none /usr/bin/qemu-system-x86_64 -name instance-000006d3 -S
> > -machine pc-i440fx-vivid,accel=kvm,usb=off -cpu 
> > Haswell-noTSX,+abm,+pdpe1gb,+rdrand,+f16c,+osxsave,+dca,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme
> > -m 8192 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid
> > 5578b710-3518-44c3-91fe-e2e601f569f0 -smbios type=1,manufacturer=OpenStack
> > Foundation,product=OpenStack 
> > Nova,version=12.0.2,serial=00000000-0000-0000-0000-0cc47a555870,uuid=5578b710-3518-44c3-91fe-e2e601f569f0,family=Virtual
> > Machine -no-user-config -nodefaults -chardev 
> > socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-000006d3.monitor,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 -boot
> > strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive 
> > file=rbd:vms/5578b710-3518-44c3-91fe-e2e601f569f0_disk:id=cinder:key=AQBrR6tWbFwlOhAAmtmc/eQX8/K6OjQugVx+mg==:auth_supported=cephx\;none:mon_host=192.168.200.1\:6789\;192.168.200.2\:6789\;192.168.200.3\:6789,if=none,id=drive-virtio-disk0,format=raw,cache=writeback
> > -device 
> > virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> > -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=28 -device 
> > virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:63:24:27,bus=pci.0,addr=0x3
> > -chardev 
> > file,id=charserial0,path=/var/lib/nova/instances/5578b710-3518-44c3-91fe-e2e601f569f0/console.log
> > -device isa-serial,chardev=charserial0,id=serial0 -chardev
> > pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device
> > usb-tablet,id=input0 -vnc 0.0.0.0:1 -k en-us -device
> > cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device
> > virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on
> > char device redirected to /dev/pts/3 (label charserial1)
> > *** Error in `/usr/bin/qemu-system-x86_64': double free or corruption (out):
> > 0x00007f83bc0cc1d0 ***
> > 2016-06-28 22:36:16.361+0000: shutting down
> >
> >    not all vms have crashed and the creashed vms  images incloud : centos6.5
> > ubuntu14.04 and ubuntu16.04.  Maybe it not caused by the guest images,I
> > think.
> Yes, a double free or corruption is very likely a bug of QEMU, not the guest.
>
> Can you post a backtrace of the crash?

Zhenhao,  its better to post backtrace after installing debug symbols 
for package qemu.

> What operations are being performed when it crashes?

I'm using qemu 2.3.0, so I'm interest in how to reproduce it, i will try it.

Thanks
Wei
>   Can you reproduce it with
> QEMU 2.8.0?
>
> Fam
>
> > *I don't have any idear about this, any tips are grateful.*
> >
> > my environment info as:
> >
> > *OS: *
> >
> >          # uname -a
> >          Linux VM154S019059 4.2.0-35-generic #40~14.04.1-Ubuntu SMP Fri Mar
> > 18 16:37:35 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> >
> >          # cat /etc/lsb-release
> >              DISTRIB_ID=Ubuntu
> >              DISTRIB_RELEASE=14.04
> >              DISTRIB_CODENAME=trusty
> >              DISTRIB_DESCRIPTION="Ubuntu 14.04.4 LTS"
> >
> > *QEMU INFO：*
> >
> > dpkg -l|grep qemu
> > ii  ipxe-qemu 1.0.0+git-20131111.c3d1e78-2ubuntu1.1 all          PXE boot
> > firmware - ROM images for qemu
> > ii  qemu-block-extra:amd64 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64
> > extra block backend modules for qemu-system and qemu-utils
> > ii  qemu-slof 20140630+dfsg-1ubuntu1~14.04          all          Slimline
> > Open Firmware -- QEMU PowerPC version
> > ii  qemu-system 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU full
> > system emulation binaries
> > ii  qemu-system-arm 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > full system emulation binaries (arm)
> > ii  qemu-system-common 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64
> > QEMU full system emulation binaries (common files)
> > ii  qemu-system-mips 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > full system emulation binaries (mips)
> > ii  qemu-system-misc 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > full system emulation binaries (miscelaneous)
> > ii  qemu-system-ppc 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > full system emulation binaries (ppc)
> > ii  qemu-system-sparc 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64
> > QEMU full system emulation binaries (sparc)
> > ii  qemu-system-x86 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > full system emulation binaries (x86)
> > ii  qemu-utils 1:2.3+dfsg-5ubuntu9.2~cloud0          amd64        QEMU
> > utilities
> > *
> > *
> >
> > *
> > *
> >
> > *kvm model:*
> >
> > # modinfo kvm
> > filename: /lib/modules/4.2.0-35-generic/kernel/arch/x86/kvm/kvm.ko
> > license:        GPL
> > author:         Qumranet
> > srcversion:     54A62F24A6A2743053CCCC6
> > depends:
> > intree:         Y
> > vermagic:       4.2.0-35-generic SMP mod_unload modversions
> > signer:         Build time autogenerated kernel key
> > sig_key: 78:A2:B1:7E:20:A3:96:76:A3:5E:2C:3E:16:0E:70:1F:99:E0:65:9B
> > sig_hashalgo:   sha512
> > parm:           allow_unsafe_assigned_interrupts:Enable device assignment on
> > platforms without interrupt remapping support. (bool)
> > parm:           ignore_msrs:bool
> > parm:           min_timer_period_us:uint
> > parm:           kvmclock_periodic_sync:bool
> > parm:           tsc_tolerance_ppm:uint
> > parm:           lapic_timer_advance_ns:uint
> > parm:           halt_poll_ns:uint
> >
> > # modinfo kvm-amd
> > filename: /lib/modules/4.2.0-35-generic/kernel/arch/x86/kvm/kvm-amd.ko
> > license:        GPL
> > author:         Qumranet
> > srcversion:     BBB11CD7C18B7875B850EC4
> > alias:          cpu:type:x86,ven*fam*mod*:feature:*00C2*
> > depends:        kvm
> > intree:         Y
> > vermagic:       4.2.0-35-generic SMP mod_unload modversions
> > signer:         Build time autogenerated kernel key
> > sig_key: 78:A2:B1:7E:20:A3:96:76:A3:5E:2C:3E:16:0E:70:1F:99:E0:65:9B
> > sig_hashalgo:   sha512
> > parm:           npt:int
> > parm:           nested:int
> >
> > *libvirt*
> >
> >         # libvirtd --version
> >         libvirtd (libvirt) 1.2.16
> >
> > Best Regards,
> >
> > Zhang Zhenhao