Re: PROBLEM REMAINS: [sata_nv ADMA breaks ATAPI] Crash on accessingDVD-RAM

From: Robert Hancock
Date: Thu Jan 31 2008 - 19:09:50 EST


Alexander wrote:
Hello!

The problem described at https://bugzilla.redhat.com/show_bug.cgi?id=351451 and
at http://ubuntuforums.org/showthread.php?t=655772 and supposedly fixed by the
patch http://kerneltrap.org/mailarchive/linux-kernel/2007/11/25/445094 is still
there. I have compiled 2.6.24-rc7 kernel and booted my PC with it just to find
out that my SATA DVD-RW is

sr0: scsi3-mmc drive: 0x/0x caddy

as it was before with 2.6.23.12 and earlier 2.6 kernels compiled for x86_64.
Trying to use sr0 after this results in dead hang or reboot.
When I put sata_nv.adma=0 or mem=4096M then it's all ok:

Can you (or others experiencing this problem) test the latest patch attached to the RH Bugzilla entry here:

https://bugzilla.redhat.com/show_bug.cgi?id=351451

and see if it resolves the problem? I have one report of success so far.
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