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Description of problem: Upgrading to 2.6.40 causes crashes in the earliest stages of booting. On the same system, kernel 2.6.38-35 works fine. Version-Release number of selected component (if applicable): kernel 2.6.40-4.fc15.i686.PAE How reproducible: Upgrade to kernel 2.6.40-4, try to boot, see crash Steps to Reproduce: 1. Upgrade F15 with kernel-PAE-2.6.40-4.fc15.i686 2. Boot new kernel 3. Crash Actual results: Crash Expected results: Normal boot Additional info: Crash happens in modes 1, 3, and 5. Sometimes the kernel complains about dereferencing NULL pointer but sometimes longer traceback obliterates previous messages on screen. Supposedly, bugs relevant to 2.6.40-3 and earlier versions are fixed in 2.6.40-4, but it crashes anyway, so this may be a new kernel bug.
Created attachment 517551 [details] Photo of crash on startup
Matthew Garrett pointed me at a patch for a regression in ACPI yesterday. I've started a scratch build with this patch applied. Could those with an impacted machine please try this kernel when it finishes building and let us know the results? http://koji.fedoraproject.org/koji/taskinfo?taskID=3624930
My apologies, I pasted the wrong link to the scratch build. This is the one that should be tested: http://koji.fedoraproject.org/koji/taskinfo?taskID=3625177
*** Bug 739310 has been marked as a duplicate of this bug. ***