Messages in this thread | | | Date | Tue, 9 Jun 1998 22:41:07 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Any SMP people out there with SCSI CD ROMs? |
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On Wed, 10 Jun 1998, Keith Owens wrote: > > CD recorder on ASUS dual P166, pure SCSI. Which version of 105, > vanilla, ac1, ac2? What symptoms? I'll take a look tonight.
It will happen with all versions, the ac patches don't touch the SCSI subsystem.
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..
Linus
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