[Bug 14310] [bisected] 2.6.31 regression sis5513 PIO Mode 0 hang

[David Fries]

----- Forwarded message from bugzilla-daemon@xxxxxxxxxxxxxxxxxxx -----
http://bugzilla.kernel.org/show_bug.cgi?id=14310

--- Comment #3 from Jiri Bohac <jbohac@xxxxxxxx>  2009-10-23 18:32:03 ---
I can still reproduce this on 2.6.31.5, where the
e13ee546bb06453939014c7b854e77fb643fd6f1 fix is included. Reverting
6029336426a2b43e4bc6f4a84be8789a047d139e helps.

Without reverting 6029336426a2b43e4bc6f4a84be8789a047d139e the system hangs on
"ide-cd driver 5.00", but sometimes I also get {DriveReady SeekComplete Error}
errors on hda before the hang -- never seen them without 
6029336426a2b43e4bc6f4a84be8789a047d139e.

A few interesting lines of output before the hang: (hand-copied, no serial
console here)

hda: ST38421A <strange_nonASCII_triangle_character_here> , ATA DISK drive
hdc: LTN5269, ATAPI CD/DVD-ROM drive
hdc: tPIO > 2, assuming tPIO=2
hdc: tPIO > 2, assuming tPIO=2
..
..
<hda seek errors>
..
possibly failed opcode: 0xc6
hda: lost interrupt
hda: 
<hda seek error>
possibly failed opcode: 0x20
 unknown patrition table
ide-cd driver 5.00
<hang>

I don't have regular access to this machine, but if help is needed, I can
arrange access to the machine.

Can we re-open this bug?

-- 
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