[BUG] DVD writing in 2.6.6-rc2

[Kenneth Johansson <ken@kenjo.org>]

I have a problem when using growisofs version 5.19.

The problem is that in the very end when gowisofs tries to flush the
cache. When stracing the process I can see it sits in a call to poll
that never returns. 

I noticed that if I start growisofs and later attach to it with "strace
-p" I can make it continue with killing the strace process. just to see
it hang in the next poll. But re attaching then killing the strace again
a few times and growisofs finally dose a normal exit.

This happens every time. 

The only unusual thing with my setup is that I only have the DVD burner
on the IDE controller no disks so I guess it's some type of missed
interrupt. 

I looked at the drivers/ide/pci/via82cxxx.c but that one did not do much
apart from setting a few configurations so I guess it's some generic
code that dose the real work. 

----------VIA BusMastering IDE Configuration----------------
Driver Version:                     3.38
South Bridge:                       VIA vt8233a
Revision:                           ISA 0x0 IDE 0x6
Highest DMA rate:                   UDMA133
BM-DMA base:                        0x9800
PCI clock:                          33.3MHz
Master Read  Cycle IRDY:            0ws
Master Write Cycle IRDY:            0ws
BM IDE Status Register Read Retry:  yes
Max DRDY Pulse Width:               No limit
-----------------------Primary IDE-------Secondary IDE------
Read DMA FIFO flush:          yes                 yes
End Sector FIFO flush:         no                  no
Prefetch Buffer:               no                  no
Post Write Buffer:             no                  no
Enabled:                      yes                 yes
Simplex only:                  no                  no
Cable Type:                   80w                 80w
-------------------drive0----drive1----drive2----drive3-----
Transfer Mode:        PIO       PIO      UDMA      UDMA
Address Setup:      120ns     120ns     120ns     120ns
Cmd Active:         360ns     360ns      90ns      90ns
Cmd Recovery:       210ns     210ns      30ns      30ns
Data Active:        330ns     330ns      90ns      90ns
Data Recovery:      270ns     270ns      30ns      30ns
Cycle Time:         600ns     600ns      60ns      60ns
Transfer Rate:    3.3MB/s   3.3MB/s  33.3MB/s  33.3MB/s