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List:       linux-kernel
Subject:    Re: ENOSYS, CD-ROM, and SMP oopses
From:       Richard Guenther <zxmpm11 () student ! uni-tuebingen ! de>
Date:       1998-08-12 13:54:58
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On Wed, 12 Aug 1998, Meelis Roos wrote:

> G> My previously reported flood of oops' after I removed a single Pentium from
> G> my Tyan Tomcat IV go away if I use 'nosmp' on the command line.  Something
> G> isn't quite happy in the SMP code if it only gets one processor now...
> 
> G> mount("/dev/hdc", "/mnt/cdrom", "iso9660", 0xc0ed0000, 0x80541f0) = -1
> G> ENOSYS (Function not implemented)
> G> mount("/dev/hdc", "/mnt/cdrom", "iso9660", 0xc0ed0000, 0x80541f0) = -1
> G> ENOSYS (Function not implemented)
> G> mount("/dev/hdc", "/mnt/cdrom", "iso9660", 0xc0ed0000, 0x80541f0) = -1
> G> ENOTBLK (Block device required)
> 
> This looks _very similar_ to the amd mounting problems that happen since 114.
> I got ENOSYS errors on mount syscall too. UP kernel.
> The scheduler was changed and some mount stuff broke.
> As a temporary workaround you might try to back out the sched.c changes in
> 2.1.114 (2 first hunks of sched.c changes).
> 

It even gets stanger. I get ENOSYS from open() two times, if opening
/dev/vtx (saa module), the third time ENODEV - very strange.

Richard.

--
Richard Guenther <richard.guenther@student.uni-tuebingen.de>
PGP: 2E829319 - 2F 83 FC 93 E9 E4 19 E2 93 7A 32 42 45 37 23 57
WWW: http://www.anatom.uni-tuebingen.de/~richi/


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