Re: Lockup with CDROM

Richard B. Johnson (root@chaos.analogic.com)
Wed, 10 Jun 1998 20:43:46 -0400 (EDT)


On Wed, 10 Jun 1998, Mark Lord wrote:

> Alan Cox wrote:
> >
> > Ok its SMP specific, its not disk controller specific. However when I try
> > and catch it I seem to end up with it locking on CPU#1 so all I see is
> > CPU 0 looping on __lock_kernel.
>
> This is where the SPINLOCK_DEBUG stuff I once posted would come in
> handy.
> It would nail the culprit within seconds.
> --
> mlord@pobox.com
> The Linux IDE guy

I would guess the trouble is in a driver, but _not_ the BusLogic driver.
All three of my SMP Pentiums work fine when mounting a SCSI CDROM.

I built a -g kernel so I could locate the actual code that was
responsible, but the thing won't Ooops. I still have an Adaptec
controller. If it helps, I could install it and see if it Ooops.

Let me know if it would help.

Cheers,
Dick Johnson
***** FILE SYSTEM MODIFIED *****
Penguin : Linux version 2.1.105 on an i586 machine (66.15 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.

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