Michael Tokarev <[email protected]> writes:
> Control: merge -1 1149859
>
> On 10/3/26 21:51, kjonca wrote:
>> Package: qemu-system-x86
>> Version: 1:11.1.2+ds-1
>> Severity: normal
>> Dear Maintainer,
>> Recently I found that my 32 Windows Vista client halts during boot.
>> Moreover in logs I found (I am not sure if all of these are
>> apropriate
>> here)
>> [63469.996020] qemu-system-x86[28061]: segfault at 560f63c29600 ip
>> 0000560f63c29600 sp 00007ffc2509a078 error 15 likely on CPU 4 (core
>> 8, socket 0)
>> [63469.996037] Code: 00 00 c8 1a ff 78 87 7f 00 00 00 00 00 00 00 00 00 00
>> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00>
>> 00 00 00 00 00 00 00 81 00 00 00 00 00 00 00 d0 52 1a 65 0f 56
>
> This is never a good thing, - qemu crashed.
>
>> [63469.996503] audit: type=1400 audit(1791052506.218:510):
>> apparmor="DENIED" operation="mknod" class="file"
>> profile="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98"
>> name="/core.28061" pid=28061 comm="qemu-system-x86"
>> requested_mask="c" denied_mask="c" fsuid=64055 ouid=64055
I am trying to make qemu core dump. When I tried to attach gdb to
running core I was not able to get crash.
Moreover (but I am not sure, this needs to be checked) it seems that
crash not always happens. (but always hangs)
> Are there multiple virtual machines which trigger this issue?
Yes. Two windows vista Business and one Home Basic (32 bit)
Do you think that plan:
1. run machine
2. attach debugger
3. dump stack (there are multpile threads) is reasonable?
below qemu commandline (from ps ax -Hwww) (sorry for length)
/usr/bin/qemu-system-x86_64 -name guest=azot,debug-threads=on -S -object
{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-5-azot/master-key.aes"}
-machine
pc-i440fx-10.0,usb=off,vmport=off,dump-guest-core=off,memory-backend=pc.ram,hpet=off,acpi=on
-accel kvm -cpu
qemu64,hv-time=on,hv-relaxed=on,hv-vapic=on,hv-spinlocks=0x1fff -m
size=1048576k -object
{"qom-type":"memory-backend-ram","id":"pc.ram","size":1073741824} -overcommit
mem-lock=off -smp 2,sockets=2,cores=1,threads=1 -uuid
31860a79-3e72-4fac-bda4-b199c1cbdb98 -no-user-config -nodefaults -chardev
socket,id=charmonitor,fd=33,server=on,wait=off -object
{"qom-type":"monitor-qmp","id":"monitor","chardev":"charmonitor"} -rtc
base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=delay
-no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot
strict=on -device
{"driver":"ich9-usb-ehci1","id":"usb","bus":"pci.0","addr":"0x5.0x7"} -device
{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pci.0","multifunction":true,"addr":"0x5"}
-device
{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pci.0","addr":"0x5.0x1"}
-device
{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pci.0","addr":"0x5.0x2"}
-device {"driver":"ahci","id":"sata0","bus":"pci.0","addr":"0x6"} -device
{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x7"}
-device {"driver":"ide-cd","bus":"sata0.1","id":"sata0-0-1"} -blockdev
{"driver":"file","filename":"/var/lib/libvirt/images/virtualbox-vista-32.qcow2","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}
-blockdev
{"node-name":"libvirt-4-format","read-only":true,"driver":"qcow2","file":"libvirt-4-storage","backing":null}
-blockdev
{"driver":"file","filename":"/var/lib/libvirt/images/virtualbox-azot.qcow2","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}
-blockdev
{"node-name":"libvirt-3-format","read-only":true,"driver":"qcow2","file":"libvirt-3-storage","backing":"libvirt-4-format"}
-blockdev
{"driver":"file","filename":"/var/lib/libvirt/images/azot-diff.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}
-blockdev
{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":"libvirt-3-format"}
-device
{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x8","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}
-netdev {"type":"tap","fd":"34","vhost":true,"vhostfd":"36","id":"hostnet0"}
-device
{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:55:58:40","bus":"pci.0","addr":"0x3"}
-chardev pty,id=charserial0 -device
{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}
-chardev spicevmc,id=charchannel0,name=vdagent -device
{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"com.redhat.spice.0"}
-device {"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}
-audiodev {"id":"audio1","driver":"spice"} -spice
port=5900,addr=127.0.0.1,disable-ticketing=on,image-compression=off,seamless-migration=on
-device
{"driver":"qxl-vga","id":"video0","max_outputs":1,"ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"bus":"pci.0","addr":"0x2"}
-device
{"driver":"AC97","id":"sound0","audiodev":"audio1","bus":"pci.0","addr":"0x4"}
-chardev spicevmc,id=charredir0,name=usbredir -device
{"driver":"usb-redir","chardev":"charredir0","id":"redir0","bus":"usb.0","port":"2"}
-chardev spicevmc,id=charredir1,name=usbredir -device
{"driver":"usb-redir","chardev":"charredir1","id":"redir1","bus":"usb.0","port":"3"}
-device
{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x9"}
-sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny -msg
timestamp=on
KJ
--
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