Red Hat Bugzilla – Bug 404941
oops null pointer deref tcp_tso_segment - bridging, tc, xen
Last modified: 2009-01-09 00:22:41 EST
Description of problem:
Quad x86_64 16G ram running 2.6.21-2950.fc8xen. Acting as dom0 hosting a busy
domU fedora mirror. With traffic control enabled on the domU by way of shorewall
the dom0 frequently crashes. Sometimes it runs for days sometimes for hours or
Full oops is attached, here's the start of it.
Unable to handle kernel NULL pointer dereference at 0000000000000030 RIP:
PGD 3d0d16067 PUD 3d172b067 PMD 0
Oops: 0000  SMP
Version-Release number of selected component (if applicable):
Very frequent but not especially predictable.
Steps to Reproduce:
1. Enable traffic control on busy (network wise) domU
2. Watch dom0 for indeterminate period
3. Observe oops and reboot
This same issue affected me on F7.
It seems similar to this
Created attachment 273231 [details]
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