Re: sym53c8xx: WARNING on module unload, crashes on further usage

[Nikola Ciprich <extmaillist@linuxbox.cz>]

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

n.


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 :-)
> 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@vger.kernel.org
> > 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@linuxbox.cz
> -------------------------------------
> --
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> 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@linuxbox.cz
-------------------------------------