Description of problem: From Nathan Rosenblum <nater.edu>: I have identified a bug in the linux kernel that causes this kernel panic on my machine. More details are below, but the executive summary is this: the code that triggers the bug appears to have been eliminated in 2.6.11.12, but I have not tested on the intervening releases between 2.6.9 and that version, so I cannot guarantee that it was not fixed previous to 2.6.11.12. It is unclear whether the developer that made the change in that version was aware of the severity of the problem, or even if a problem existed; the commit comments suggest that the change was only cleanup. This is apparently left-over debugging code that is stripped out in 2.6.11.12. Version-Release number of selected component (if applicable): 2.6.9-34.EL How reproducible: Always Steps to Reproduce: See attachments Actual results: Crashed kernel Expected results: Running kernel
Created attachment 127259 [details] discussion and code snippets
Created attachment 127301 [details] panic trace
Created attachment 127302 [details] here is the upstream fix
Reviewed with Jay and Linda, approved exception moving to CanFix.
committed in stream U4 build 36.1. A test kernel with this patch is available from http://people.redhat.com/~jbaron/rhel4/
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2006-0493.html