Xen developers:
This week we are only tracking three new bugs in Bugzilla:
1227, 1229, & 1230. You can find out more information on this weekâs
bug at http://wiki.xensource.com/xenwiki/XenBugs.
This wiki site also contains previous weekly bug lists.
If you would like to add comments about this bug, please
update the Bugzilla database or the Wiki as I will monitor both to ensure that
no one does any duplicate work. As always, if you have any questions or ideas
about the community, please contact me via email or phone.
BUG 1227
Â
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1227
After copying some larger files (e.g. adding RPMs), the Dom0 spits out error
msgs (var/log/messages):
Apr 25 22:38:44 paikea kernel: PCI-DMA: Out of SW-IOMMU space for 8192 bytes at
device 0000:03:03.0
Apr 25 22:38:44 paikea kernel: 3w-xxxx: tw_map_scsi_sg_data(): pci_map_sg()
failed.
Apr 25 22:38:44 paikea kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_ERROR
driverbyte=DRIVER_OK,SUGGEST_OK
Apr 25 22:38:44 paikea kernel: end_request: I/O error, dev sda, sector 6553286
In parallel, the partition is re-mounted read-only and no file writing
operation is possible any more. Hardware used is an AMD 64 CPU, 3ware RAID
controller and 4 GB RAM memory.
---------------
Xen Version (drawn from the stock RPM of opensuse 10.3):
NameÂÂÂÂÂÂÂ : xenÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ Relocations: (not relocatable)
VersionÂÂÂÂ : 3.1.0_15042ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ Vendor: SUSE LINUX Products
GmbH, Nuernberg, Germany
ReleaseÂÂÂÂ : 51.3ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ Build Date: Do 20 Dez 2007 21:02:18
CET
Install Date: So 02 Mïr 2008 16:05:20 CETÂÂÂÂÂ Build Host: anonymi.suse.de
GroupÂÂÂÂÂÂ : System/KernelÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ Source RPM:
xen-3.1.0_15042-51.3.src.rpm
SizeÂÂÂÂÂÂÂ : 10984408ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ License: GPL v2 only
SignatureÂÂ : DSA/SHA1, Do 20 Dez 2007 21:06:44 CET, Key ID a84edae89c800aca
PackagerÂÂÂ : http://bugs.opensuse.org
URLÂÂÂÂÂÂÂÂ : http://www.cl.cam.ac.uk/Research/SRG/netos/xen/
Kernel data:
2.6.22.17-0.1-xen, 1 SMP 2008/02/10 20:01:04 UTC
grub menu.lst boot settings:
-------
title XEN -- openSUSE 10.3 - 2.6.22.17-0.1
ÂÂÂ root (hd0,1)
ÂÂÂ kernel /boot/xen.gz dom0_mem=512M
ÂÂÂ module /boot/vmlinuz-2.6.22.17-0.1-xen root=/dev/sda2 keymap=de
ÂÂÂ resolution=800x600 -- resume=/dev/sda1 splash=silent iommu=soft showopts
ÂÂÂ module /boot/initrd-2.6.22.17-0.1-xen
-------
I have the same behavior with dom0_mem=256M and also without the iommu=soft
option.The error has also been reported on various sites and for other distros,
but not listed in the bug list yet. References:
1) xen-devel list, thread "Re: [Xen-devel] Massive problems with 'PCI-DMA: Out
of SW-IOMMU space for XXX bytes [..]' with 3Ware controller"
2)
http://forums.novell.com/novell-product-support-forums/suse-linux-enterprise-server-sles/sles-virtualization/310206-sles10sp1-xen-out-sw-iommu-kernel-problems-post1458810.html#post1458810
BUG 1229
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1229
I have a windows 2003 HVM domain (called win1 in output
below) that becomes
unresponsive after a few days.
xm list gives me no status for this domain :
xm list
NameÂÂÂÂÂ ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂIDÂÂ Mem
VCPUsÂÂÂÂÂ StateÂÂ Time(s)
Domain-0ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ 0Â 6051ÂÂÂÂ
4ÂÂÂÂ r-----Â 44485.5
web2ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ 1Â 1024ÂÂÂÂ
1ÂÂÂÂ -b----ÂÂ 2354.7
win1ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ2Â 1024ÂÂÂÂ
1ÂÂÂÂ ------ÂÂ 6754.1
I have kept a dump-core if it can help.
BUG 1230
Â
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1230
It seems impossible to let the 32 bit dom0 addressing more
than 16GB of memory.
My environment is a system with 26GB of ram, centos 5.0 32
bit,
kernel-xen-2.6.18-53.1.14.el5.centos.plus. I've installed a
upgaded xen and xen
libs downloaded from the web site:
xen-libs-3.2.0-0xs.centos5 and
xen-3.2.0-0xs.centos5.
Moreover I installed the last grub from the grub web site
configured to accept
the mem parameter at boot.
Thanks.
Stephen
Spector
Sr.
Program Manager, Xen.org
954.267.2853
stephen.spector@xxxxxxx
