Re: ENOSYS, CD-ROM, and SMP oopses

Meelis Roos (mroos@tartu.cyber.ee)
Wed, 12 Aug 1998 13:55:35 +0300


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).

-- 
Meelis Roos (mroos@tartu.cyber.ee)

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