Re: [PATCH] block: fix residual byte count handling

[walt]

Jens Axboe wrote:
> On Tue, Mar 04 2008, Mike Galbraith wrote:
> > On Tue, 2008-03-04 at 10:35 +0100, Jens Axboe wrote:
> >
> > > Looks excellent to me, has a variant of this been tested as OK by the
> > > users reporting the regression?
> > K3b burning seems to be a nogo here.  This is git pulled this morning
> > though, so it's a somewhat different tree than previously tested fwtw.
>
> can you please try git as of this morning without any patches applied,
> and then pull
>
> git://git.kernel.dk/linux-2.6-block.git for-linus
>
> into that and see if that works?

Unfortunately this doesn't fix a problem I've discussed off-list with
Kiyoshi Ueda, who suggested that I should follow this thread and try
any patches posted here.

Here is what happens when I try to mount a CD (before and after I
pull 'for-linus'):

hdc: ide_cd_check_ireason: wrong transfer direction!
cdrom: failed setting lba address space
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: drive not ready for command
hdc: status timeout: status=0xd0 { Busy }
ide: failed opcode was: unknown
hdc: DMA disabled
hdc: drive not ready for command
hdc: ATAPI reset complete
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
VFS: busy inodes on changed media.

The mount can take from 5 seconds on up to a minute or so before the
CD can be accessed.

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