Created attachment 332455 [details] kernel trace Description of problem: kernel panic Version-Release number of selected component (if applicable): 2.6.27.12-170.2.5.fc10.i686 How reproducible: always Steps to Reproduce: 1. boot system 2. wait a moment 3. panic Actual results: panic Expected results: no panic Additional info: In the attachment you'll see hal-acl-tool in the trace, but this happens with many seemingly random apps, this was just a trace I was able to capture. It seems highly correlated with my having the machine running with the PCI video card (nvidia GeForceMX 4000) as the primary card. If I switch it to the integrated video as the primary, I think it goes away. Or at least it happens with such infrequency as I haven't noticed it. In both cases both are active, just which the BIOS thinks is primary is swapped. This is on an Intel server board with a Core2Duo CPU. Let me know what else I can post to help. It's also new to Fedora 10. I was previously running Fedora 8 without this problem.
that's: BUG_ON(!PageHighMem(page)); Can you reproduce that without the nvidia driver, i.e. using nv or nouveau?
Oh, sorry, I should have said this is currently running in runlevel 3. I'm having separate problems with X at the moment.
the nvidia kernel driver could still cause problems if it's loaded but not being used.
Ah, OK, thanks Chuck. I'll back it out and retest.
I removed the nvidia kmods and still get this, with the same trace. I've never see it in single user mode, so I tried starting up in 'interactive' runlevel 3 and disabled all the services, which I thought also stopped this, but just when I thought I'd narrowed down the service by binary search, I was proven wrong with a panic. So single user mode could just show that it doesn't happen when not much is going on. Part of the trick is here is I'm trying to prove the negative at each iteration and my only testcase is 'get lots of stuff running on each vc' which is pretty poor on time. Does the trace suggest anything to you that could help me come up with a better test? If I had that I could do some more effective troubleshooting.
FWIW, this machine was redeployed as a server about 3 months ago and this does not occur without the PCI video card set as primary. I can't really test at this point since that server is in production.
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