[Bugme-new] [Bug 13632] New: BUG at fs/ocfs2/dlm/dlmmaster.c:3266
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Fri Jun 26 18:05:37 PDT 2009
http://bugzilla.kernel.org/show_bug.cgi?id=13632
Summary: BUG at fs/ocfs2/dlm/dlmmaster.c:3266
Product: File System
Version: 2.5
Kernel Version: 2.6.30
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ocfs2
AssignedTo: fs_ocfs2 at kernel-bugs.osdl.org
ReportedBy: bplant at iinet.net.au
Regression: No
Created an attachment (id=22116)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22116)
oops
I am running 3 node ocfs2 xen (paravirt_ops) setup on quad core xeons. The
guest VMs have 2 CPU's and 1.5GB of memory. When the BUG occurred, I was load
testing the system by doing the following:
- Repeatedly untar/delete kernel sources on the ocfs2 fs
- Benchmark a php application on 2 of the nodes which uses flock (on the ocfs2
fs) to control access to a cache. The php application is being benchmarked with
a concurrency of 7.
The above scenario puts the VMs under both high IO and CPU load. uptime will
report a system load of around 7-8.
The kernel was compiled using gcc 4.3.3 from ubuntu 9.04.
Please let me know what further info you require.
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