Re: Any SMP people out there with SCSI CD ROMs?

David Godfrey (dave@delta.demon.co.uk)
Wed, 10 Jun 1998 12:58:29 +0100 (BST)

> 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've seen this happen after playing an audio cd with workman, then
ejecting and inserting a new disk. H/w Asus dual PPro P65UP5 with an
ncr53c810a scsi card (ncr53c8xx driver) and a Tosh XM-3701TA CD-ROM.
Vanilla 2.1.105 SMP. Although the CD-ROM is on the ncr, there is also
a 2940UW with two Quantum Atlas wide disks in this machine.

Regards

Dave

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