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[Qemu-devel] [Bug 595438] Re: segmentation scsi writeback
From: |
Коренберг Марк |
Subject: |
[Qemu-devel] [Bug 595438] Re: segmentation scsi writeback |
Date: |
Thu, 17 Jun 2010 09:57:35 -0000 |
Bug 100% reproductible (on this, and on other machine with different
processor)
core dump (bzip2) attached
** Attachment added: "core dump"
http://launchpadlibrarian.net/50482028/core.bz2
--
segmentation scsi writeback
https://bugs.launchpad.net/bugs/595438
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Status in QEMU: New
Bug description:
I Use Ubuntu 32 bit 10.04 with standerd kvm.
I have 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 scsi virtual disk and writeback simultaneously. writeback+ide,
writethrough+scsi works OK.
I use qcow2. It seems, that qcow does not have such problems.
Virtual machine get down at radom place during file copy. It seems, when qcow2
file size need to be expanded.
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