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):
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
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?
My apologies, I pasted the wrong link to the scratch build. This is the one that should be tested:
*** Bug 739310 has been marked as a duplicate of this bug. ***