Bug 296491

Summary: Crash on bootup with kernel-xen-2.6.21-2940.fc8
Product: [Fedora] Fedora Reporter: Kai Engert (:kaie) (inactive account) <kengert>
Component: kernel-xenAssignee: Eduardo Habkost <ehabkost>
Status: CLOSED WORKSFORME QA Contact: Virtualization Bugs <virt-bugs>
Severity: high Docs Contact:
Priority: medium    
Version: rawhideCC: xen-maint
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2007-10-11 15:23:06 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
boot log none

Description Kai Engert (:kaie) (inactive account) 2007-09-19 15:30:41 UTC 
Rawhide x86_64 Xen guest running on a RHEL-5 x86_64 host.

Problem: kernel-xen-2.6.21-2940.fc8 does not boot up.


I used "xm create -c rawhide" and I get a repeated stream of the same error message:
init[1]: segfault at 0000000000000028 rip 00002aaaaacd3f26 rsp 00007fff775050b0
error 4


The previous kernel-xen-2.6.21-2925.14.fc8 works fine.

The host is running kernel-xen-2.6.18-8.1.8.el5
(I confess I rebuilt the official kernel to enable ieee1394 support)
Comment 1 Kai Engert (:kaie) (inactive account) 2007-09-19 15:34:06 UTC 
Host: 4 GB Ram
Guest: 1 GB Ram
Comment 2 Kai Engert (:kaie) (inactive account) 2007-09-19 23:56:58 UTC 
I updated the host to kernel-xen-2.6.18-8.1.10.el5, same problem
Comment 3 Eduardo Habkost 2007-10-11 14:01:09 UTC 
Could you paste or attach the guest console output just before the segfaults 
stream begin?
Comment 4 Kai Engert (:kaie) (inactive account) 2007-10-11 15:23:06 UTC 
Good news. Newer Kernel 2.6.21-2947.fc8xen no longer crashes
I'll resolve this bug because I no longer crash with the latest kernel.

But I'll attach a more detailed boot console output from the crashing kernel.
Comment 5 Kai Engert (:kaie) (inactive account) 2007-10-11 15:25:17 UTC 
Created attachment 224441 [details]
boot log

using
  xm -c create rawhide | tee logfile
produced some extra line feeds after filtering out all the boot menu data...
Comment 6 Eduardo Habkost 2007-10-11 17:46:58 UTC 
Chris Lalancette found the problem: the initrd was generated during the 
upgrade while an older ld.so was installed, but newer nash needed a more 
recent ld.so. Regenerating your initrd should solve the problem.

That also explains why 2.6.21-2947.fc8xen works. Its initrd was generated 
after the system had a working mkinitrd/nash/ld.so set.