On Thu, Apr 02, 2009 at 02:28:08PM +0200, Nikola Ciprich wrote: > Hmm, > maybe a bit usefull can be begin of crash message, he got on console: > > databox [488754.946366] BUG: spinlock recursion on CPU#1, swapper/0 > databox [488754.950343] lock: f70ddbe0, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 1 Yes, that's somewhat more useful ... the tail of the stack trace in the photo indicates this isn't (at least directly) a bug in the sym53c8xx driver. Can you get the rest of the crash message? netconsole might help here if you don't have a serial console. > > On Thu, Apr 02, 2009 at 02:26:10PM +0200, Nikola Ciprich wrote: > > Hi Matthew, > > well, I've got VERY crappy screen photo, my collegue made using his cellphone, You can check > > it on http://nik.lbox.cz/downloads/sym53c8xx-crash.jpg > > But we can quite easily reproduce the problem, I'll try to do it today evening and make a > > better screenshot... > > I'll report further then. > > Regarding warning, couldn't it then be surpressed, if it's harmless? Kernel then gets tainted, > > which makes me a bit nervous :-) There's a few reasons this warning hasn't been fixed yet: - It only appears on module unload. Most people don't unload sym53c8xx. - The problem that it's warning about is only a problem on ARM. There's not a huge userbase of ARM users with sym53c8xx cards. - Fixing it requires a fairly large rewrite of how sym2 manages its memory. I've done about half the work required, but I've basically run out of interest. > > regards > > nik > > > > On Thu, Apr 02, 2009 at 05:23:38AM -0600, Matthew Wilcox wrote: > > > On Thu, Apr 02, 2009 at 09:54:04AM +0200, Nikola Ciprich wrote: > > > > Hi, > > > > we're experiencing problems using changer connected on LSI Logic / Symbios Logic 53c875 adaptor (using sym53c8xx module). > > > > Sometimes changer gets stuck, and reloading sym53c8xx module is the only way to help. But it alwas issues following warning, > > > > and on subsequent mtx usage, the whole machine usually crashes... > > > > > > The warning is actually harmless. What error messages do you get when > > > the machine crashes? > > > > > > -- > > > Matthew Wilcox Intel Open Source Technology Centre > > > "Bill, look, we understand that you're interested in selling us this > > > operating system, but compare it to ours. We can't possibly take such > > > a retrograde step." > > > -- > > > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > > > -- > > ------------------------------------- > > Nikola CIPRICH > > LinuxBox.cz, s.r.o. > > 28. rijna 168, 709 01 Ostrava > > > > tel.: +420 596 603 142 > > fax: +420 596 621 273 > > mobil: +420 777 093 799 > > www.linuxbox.cz > > > > mobil servis: +420 737 238 656 > > email servis: servis@xxxxxxxxxxx > > ------------------------------------- > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > ------------------------------------- > Nikola CIPRICH > LinuxBox.cz, s.r.o. > 28. rijna 168, 709 01 Ostrava > > tel.: +420 596 603 142 > fax: +420 596 621 273 > mobil: +420 777 093 799 > www.linuxbox.cz > > mobil servis: +420 737 238 656 > email servis: servis@xxxxxxxxxxx > ------------------------------------- > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
