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Description of problem: Kernel crashes immediately at boot, with these lines: BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffffa00c921b>] sym53c8xx_slave_destroy+0x63/0xfa [sym53c8xx] (see attachment for a picture of the crash screen) Version-Release number of selected component (if applicable): Fedora 15 with any 2.6.41 kernel that I tried (the 2.6.40 kernel I have seems to be fine) How reproducible: I'm suspecting that the issue is that my symbios card has no bootable drives on it (in fact, it only hosts an LTO3 changer) Steps to Reproduce: 1. boot a 2.6.41 kernel on Fedora 15 2. have a symbios card, probably with no hard drives attached (but probably needs something, as my symbios card has 2 scsi chains--only the second one with just the tape changer on it causes the problem. 3. profit! Actual results: Crash :-( Expected results: No Crash :-) Additional info: I can try to collect more data if necessary, I see that the I missed some of the stack trace from the crash in the attached photo.
Created attachment 548946 [details] picture of crash screen
I just stumbled on this: http://permalink.gmane.org/gmane.linux.kernel/1224030 which suggests that this was a recent change--perhaps this has already been fixed upstream?
The patch you referenced went into the 3.3 kernel. Does 2.6.43/3.3 resolve this for you?
(In reply to comment #3) > The patch you referenced went into the 3.3 kernel. Does 2.6.43/3.3 resolve > this for you? Yep--once I got a 2.6.43 kernel the issue went away. I suppose I should have commented with an update to this issue, my apologies.
THanks.