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Re: pagebuf_kiobuf_io got error -38

To: Thomas Graichen <graichen@xxxxxxxxxxxxx>
Subject: Re: pagebuf_kiobuf_io got error -38
From: Chaitanya Tumuluri <chait@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 21 Jul 2000 11:32:23 -0700
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: Your message of "21 Jul 2000 12:46:01 GMT." <news2mail-8l9gm9$hmk$1@mate.bln.innominate.de>
Sender: owner-linux-xfs@xxxxxxxxxxx
On 21 Jul 2000 12:46:01 GMT, Thomas Graichen <graichen@xxxxxxxxxxxxx>, 
thomas.graichen@xxxxxxxxxxxxx wrote:
>i just tried the current state of the sgi xfs cvs tree, got it
>compiled and running fine but after mounting a filesystem and
>copying lots of stuff to it i got lots of
>
>  pagebuf_kiobuf_io got error -38
>
>errors and the machine was unuseable a bit later - is this a
>known problem at the moment ?
>
>t

Hi,

Thought I'd provide a little more info. for users out there.

>From <errno.h>:

#define ENOSYS          38      /* Function not implemented */

Basically, as Steve Lord pointed out in an earlier email, the
following option listed under the XFS config options menu:

        "Use kiobuf for XFS I/O"

should be turned off, if you're using an IDE drive (or LVM/MD). 
This option only works for SCSI drives currently.

Yes, work is underway to support this option for other non-SCSI 
devices as well.

Cheers,
-Chait.

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