Your message dated Thu, 5 Aug 2010 17:40:42 +0200
with message-id <[email protected]>
and subject line Closing #431041: XEN: "4gb seg fixup" in Dom0 reproducible
with xen-tools
has caused the Debian Bug report #431041,
regarding XEN: "4gb seg fixup" in Dom0 reproducible with xen-tools
to be marked as done.
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431041: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=431041
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--- Begin Message ---
Package: xen-utils
Version: 3.0.3
When using XEN in Debian I get repeatably lots of pages containing "4gb
seg fixup"-errors (details below) although i'm using libc6-xen and retried
with /lib/tls removed as well.
I was able to reproduce it every time and on different machines. Without
starting any DomU enter the following command in Dom0 to create a new DomU
with bootstraping (package xen-tools):
xen-create-image --hostname testetch2 --debootstrap --dist etch
Unfortunatly, I cannot say if this is just a problem in xen-utils or with
XEN itself. If it is the latter, then might be more of those errors during
the operation of XEN and I suggest to increase the severity in that case
to "important".
ERROR-DESCRIPTION:
The errors apear shortly after this line appears...
Installing your system with debootstrap mirror
http://debian.inode.at/debian/
... and won't stop until the next line ("Done") from xen-tools appears.
Errors (400+ lines) like this clutter up the the console:
printk: 148430 messages suppressed.
4gb seg fixup, process apt-get (pid 12238), cs:ip 73:b7d09ccc
And can be found in the syslog too:
Jun 28 17:33:32 debian kernel: printk: 148430 messages suppressed.
Jun 28 17:33:32 debian kernel: 4gb seg fixup, process apt-get (pid
12238), cs:ip 73:b7d09ccc
They vary in the numbers and the process; other processes besides apt-get
are e.g.:
mount, base-files.post, dpkg, tar, update-alternat, tar, frontend, locale,
dpkg-deb, dpkg-divert, preinst, ls
... and much more.
USED CONFIGURATION:
I am using Debian GNU/Linux 4.0 "etch" with the following components (from
dpkg -l, value in brackets is column "version"):
linux-image-2.6.18-4-xen-686 (2.6.18.dfsg.1-12etch2)
libc6-xen (2.3.6.ds1-13)
linux-modules-2.6.18-4-xen-686 (2.6.18.dfsg.1-12etch2)
xen-hypervisor-3.0.3-1-i386-pae (3.0.3-0-2)
xen-linux-system-2.6.18-4-xen-686 (2.6.18.dfsg.1-12etch2)
xen-utils-3.0.3-1 (3.0.3-0-2)
xen-tools (2.8-2)
xen-utils-common (3.0.3-0-2)
Both machines have "pae" in their /proc/cpuinfo.
FURTHER INFOS:
Another interesting fact is that the same approach in "Ubuntu 7.04 Server"
(which is a Debian-derivate after all) works fine. Maybe it's possible to
narrow the bug hunt by looking what's different there? I give the
information about the Ubuntu packages as well, probably they will be
useful. If not feel free to ignore the information:
The xen-tools version in Ubuntu is 3.0.3-0ubuntu1 and libc6-xen is
2.5-0ubuntu14.
Regards,
Andreas
--- End Message ---
--- Begin Message ---
As this seems to have been kernel or xen bug and the according bug
against linux-image-2.6.18-4-xen-686 (http://bugs.debian.org/435241)
has been closed because of no other occurrence and no more followup,
I'm closing the one against xen-tools as well.
Regards, Axel
--
,''`. | Axel Beckert <[email protected]>, http://people.debian.org/~abe/
: :' : | Debian Developer, ftp.ch.debian.org Admin
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--- End Message ---
