Re: Any SMP people out there with SCSI CD
Ben Fennema (bfennema@ix.netcom.com)
Wed, 10 Jun 1998 00:28:06 -0700
On Tue, Jun 09, 1998 at 10:41:07PM -0700, Linus Torvalds wrote:
> The symptoms are a very noticeable and complete hard lockup, it appears.
> Which is extremely easy to believe if something is leaving the
> io_request_lock locked (or tries to get it recursively). That would
> certainly lock the machine completely.
>
> Which is why I asked for somebody who felt comfortable about spinlocks.
> Any help is appreciated, even just reports of how to reliably make this
> happen (for all I know it may be limited to just one specific driver), but
> let's be careful out there..
I can report that it happens on my SMP machine...
2.1.105, AIC7XXX driver. Lockup on mount of data cdrom.
(It doesn't lockup trying to mount a music CD though...)
Ben
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