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From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Reply-To: vda@port.imtp.ilyichevsk.odessa.ua
To: Jens Axboe <axboe@suse.de>, Martin Dalecki <martin@dalecki.de>,
        Vojtech Pavlik <vojtech@suse.cz>
Subject: New IDE code and DMA failures
Date: Thu, 11 Apr 2002 15:39:33 -0200
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Hi Jens, Martin, Vojtech,

I have a flaky IDE subsystem in one box. Reads work fine,
writes sometimes don't work and hang either IDE/block device
sybsystem or entire box. For example, I dumped ~40 MB file to
the disk and now I have additional power led (i.e. hdd activity
led is constantly on) and a bunch of "D" state processes
(kupdated, mount, umount).

This is happening since I decided to try 2.5.7.
2.4.18 reported DMA failures and reverted to PIO.

I did send a detailed report of similar event with
ksymoopsed stack traces of hung prosesses to lkml.

Since you are working on IDE subsystem, I will be glad to
*retain* my flaky IDE setup and test future kernels
for correct operation in this failure mode.

Please inform me whenever you want me to test your patches.
--
vda
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