Messages in this thread | | | Date | Thu, 11 Apr 2002 06:05:44 -0700 | From | Ted Deppner <> | Subject | Re: New IDE code and DMA failures |
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On Thu, Apr 11, 2002 at 03:39:33PM -0200, Denis Vlasenko wrote: > I have a flaky IDE subsystem in one box. Reads work fine, > writes sometimes don't work and hang either IDE/block device > > Please inform me whenever you want me to test your patches.
I've been testing 2.4.17 and 2.4.19-pre6 and see some similar issues. I have an Asus A7V w/ 1gig Athlon processor. Using the onboard Promise UDMA100 controller, I can read and write all day long to /dev/hde all by itself... However, after few minutes of any type of access to /dev/hdh, /dev/hde suddenly starts having DMA errors and switches to PIO. I'm on my third DMA66 cable (yet it fights tightly), and am still seeing the exact same issues. I don't believe my IDE subsystem to be flaky. hde is a WD drive, and hdh is a Maxtor.
In one of my tests the contents /dev/hdh was additionally corrupted (a write test to /dev/hdh1) so badly that the partion information changed from type 83 to type 3 (Xenix), and the contents of a reiser partition so badly damaged that a --rebuild-tree and later a --rebuild-sb to reiserfsck didn't restore it to usable. (I put those options in at the request of reiserfsck, and I haven't wiped the drive yet if someone would like further tests against the reiserfs partition).
-- Ted Deppner http://www.psyber.com/~ted/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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