Bug 523949 - kernel 2.6.31-1[24].fc12 doesn't boot in xen PV guest
Summary: kernel 2.6.31-1[24].fc12 doesn't boot in xen PV guest
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Andrew Jones
QA Contact: Red Hat Kernel QE team
Depends On:
TreeView+ depends on / blocked
Reported: 2009-09-17 11:16 UTC by Jiri Denemark
Modified: 2011-01-05 10:10 UTC (History)
13 users (show)

Fixed In Version: kernel-2.6.32-0.52.el6
Doc Type: Bug Fix
Doc Text:
Clone Of: 523941
Last Closed: 2010-11-10 20:49:46 UTC

Attachments (Terms of Use)

Description Jiri Denemark 2009-09-17 11:16:31 UTC
+++ This bug was initially created as a clone of Bug #523941 +++

Description of problem:

When trying to install 32b Fedora as a PV guest under RHEL-5.4 Xen, the installation kernel hangs at the very beginning and doesn't even print a single line. However, 64b kernel works fine.

Version-Release number of selected component (if applicable):

Reproduced with 2.6.31-12 and

How reproducible:


Steps to Reproduce:
1. virt-install --nographics --paravirt --name=f12-32 --ram=1500 --file=/var/lib/xen/images/virval/f12-32.img --file-size=4 --location=/mnt/download/fedora/linux/development/rawhide-20090916/i386/os
Actual results:

Nothing. Not a single line of message from the kernel.

Expected results:

Happily booting kernel.

Additional info:

Comment 2 RHEL Product and Program Management 2009-09-17 11:58:42 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for

Comment 3 Alexander Todorov 2009-10-01 12:37:28 UTC
I see similar stuff with 2.6.31-27.el6.x86_64 on a RHEL5.4 domO. The PV guest crashes before installation starts and xen logs do not reveal anything useful. 

This is with RHEL6.0-20090930.0. 

rawhide-20090930 is able to boot but it has kernel-

xend.log says:
[2009-10-01 08:35:47 xend.XendDomainInfo 4999] ERROR (XendDomainInfo:2129) XendDomainInfo.destroy: xc.domain_destroy failed.
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 2125, in destroy
Error: (3, \047No such process\047)

Comment 4 Alexander Todorov 2009-10-01 12:40:52 UTC
More info:
/usr/lib64/xen/bin/xenctx -s System.map-2.6.31-27.el6.x86_64 4
xc_domain_pause: No such process

Comment 5 Alexander Todorov 2009-10-01 13:07:03 UTC
FYI: this setup dom0/domU works fine with KVM.

Comment 6 Andrew Jones 2009-10-01 13:09:39 UTC
I suggest we add this kernel to the boot partition and grub.conf of a working
image. And add console=hvc0 earlyprintk=xen to kernel command line. Then try to
boot it with virsh create. Hopefully we'll see something.

Comment 7 Andrew Jones 2009-10-01 13:21:53 UTC
Ah wait a moment, Alexander you must be see in a different problem. You say you're trying to boot  2.6.31-27.el6.x86_64, but this bug is for 32-bit DomU on 64-bit Dom0. You'll need to open a new bug describing exactly what you're trying to install.

Comment 8 Alexander Todorov 2009-10-01 15:01:54 UTC
I've tried i386 PV guest but hit bug #526730. After this is fixed I can know if I'm seeing a separate issue or not.

Comment 11 Paolo Bonzini 2010-02-23 17:49:15 UTC
Andrew, this was a bit more confusing so I'm hesitant to close it myself.  However, the rebase of the RHEL6 kernel to 2.6.32 should have brought in all the fixes, in particular

33df4db04a79660150e1948e3296eeb451ac121b  x86: xen, i386: reserve Xen pagetables
d560bc61575efae43595cbcb56d0ba3b9450139c  x86, xen: Suppress WP test on Xen


Comment 12 Andrew Jones 2010-02-23 18:20:55 UTC
Yeah, this one was ugly. And another commit needed is 


The Fedora BZ that this BZ is cloned off was never closed, since it was never clear that a boot problem caused by a patch that set up slab allocators earlier in the boot sequence was truly fixed, or if it was only masked. We've had a lot of run time on F12 now though since it was released months ago. I think we're safe to close that BZ and set this one to modified. All 3 needed commits are already in RHEL6.

Comment 17 releng-rhel@redhat.com 2010-11-10 20:49:46 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.

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