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[Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeba
From: |
Jes Sorensen |
Subject: |
[Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest |
Date: |
Thu, 01 Jul 2010 06:13:43 -0000 |
Could you try and run this in GDB and get the backtrace when it crashes?
Just do:
gdb /usr/bin/kvm
(gdb) set args -M pc-0.12 -enable-kvm -m 256 -smp 1 -name spamsender -uuid
b9cacd5e-08f7-41fd-78c8-89cec59af881 -chardev
socket,id=monitor,path=/var/lib/libvirt/qemu/spamsender.monitor,server,nowait
-monitor chardev:monitor -boot d -drive
file=/mnt/megadiff/cdiso_400_130.iso,if=ide,media=cdrom,index=2 -drive
file=/home/mmarkk/spamsender2.img,if=scsi,index=0,format=qcow2,cache=writeback
-net nic,macaddr=00:00:00:00:00:00,vlan=0,name=nic.0 -net tap,vlan=0,name=tap.0
-chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc
127.0.0.1:0 -vga cirrus
(gdb) run
<after crash>
(gdb) bt
Make sure to have all the debug packages installed, otherwise the
backtrace isn't really useful.
Unfortunately the core file you posted isn't of use to anyone who
doesn't have Ubuntu installed with the exact packages you have
installed. It just shows some random addresses in gdb.
Thanks,
Jes
--
KVM segmentation fault, using SCSI+writeback and linux 2.4 guest
https://bugs.launchpad.net/bugs/595438
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
Status in QEMU: New
Bug description:
I Use Ubuntu 32 bit 10.04 with standard KVM.
I have Intel E7600 @ 3.06GHz processor with VMX
In this system I Run:
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
QEMU_AUDIO_DRV=none /usr/bin/kvm -M pc-0.12 -enable-kvm -m 256 -smp 1 -name
spamsender -uuid b9cacd5e-08f7-41fd-78c8-89cec59af881 -chardev
socket,id=monitor,path=/var/lib/libvirt/qemu/spamsender.monitor,server,nowait
-monitor chardev:monitor -boot d -drive
file=/mnt/megadiff/cdiso_400_130.iso,if=ide,media=cdrom,index=2 -drive
file=/home/mmarkk/spamsender2.img,if=scsi,index=0,format=qcow2,cache=writeback
-net nic,macaddr=00:00:00:00:00:00,vlan=0,name=nic.0 -net tap,vlan=0,name=tap.0
-chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc
127.0.0.1:0 -vga cirrus
.iso image contain custom distro of 2.4-linux kernel based system. During
install process (when .tar.gz actively unpacked), kvm dead with segmentation
fault.
And ONLY when I choose scsi virtual disk and writeback simultaneously.
But, writeback+ide, writethrough+scsi works OK.
I use qcow2. It seems, that qcow does not have such problems.
Virtual machine get down at random time during file copy. It seems, when qcow2
file size need to be expanded.
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest,
Jes Sorensen <=
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/02
- [Qemu-devel] [Bug 595438] Re: KVM segmentation fault, using SCSI+writeback and linux 2.4 guest, Коренберг Марк, 2010/07/10