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Date:      Sat, 25 Sep 1999 08:23:10 -0700
From:      Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca>
To:        The Hermit Hacker <scrappy@hub.org>
Cc:        Mike Holling <myke@ees.com>, stable@FreeBSD.ORG
Subject:   Re: swap_pager: indefinite wait buffer 
Message-ID:  <199909251523.IAA01534@passer.osg.gov.bc.ca>
In-Reply-To: Your message of "Sat, 25 Sep 1999 00:38:34 -0300." <Pine.BSF.4.10.9909250038000.11886-100000@thelab.hub.org> 

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In message <Pine.BSF.4.10.9909250038000.11886-100000@thelab.hub.org>, 
The Hermi
t Hacker writes:
> 
> Any way of findign out which device this belongs to?
> 
> swap_pager: indefinite wait buffer: device: 0x20449, blkno: 5480, size: 4096
> 
> 
> 
> On Fri, 24 Sep 1999, Mike Holling wrote:
> 
> > Any clues on what this means?
> > 
> > swap_pager: indefinite wait buffer: device: 0x20401, blkno: 28040, size: 
> > 4096
> > 
> > It's been showing up, on and off, in the daily logs of a -STABLE machine
> > running a snapshot from sometime in June.  The box is a K6-2 400 with a
> > DPT RAID controller.  Nothing bad seems to have happened yet (no apps
> > mysteriously dying) and the machine's been up for a few months.
> > 
> > - Mike
> > 
> > 
> > 
> > 
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-stable" in the body of the message
> > 

If we take a look at sys/types.h,

/* 
 * minor() gives a cookie instead of an index since we don't want to
 * change the meanings of bits 0-15 or waste time and space shifting
 * bits 16-31 for devices that don't use them. 
 */
#define major(x)        ((int)(((u_int)(x) >> 8)&0xff)) /* major number 
*/
#define minor(x)        ((int)((x)&0xffff00ff))         /* minor number 
*/
#define makedev(x,y)    ((dev_t)(((x) << 8) | (y)))     /* create dev_t 
*/

So, 0x20449 is major # 0x04, a SCSI device, and minor # 0x00020049.  
Just do an ls -l /dev/da* and you'll find your device:  da2.


Regards,                       Phone:  (250)387-8437
Cy Schubert                      Fax:  (250)387-5766
Open Systems Group          Internet:  Cy.Schubert@uumail.gov.bc.ca
ITSD                                   Cy.Schubert@gems8.gov.bc.ca
Province of BC
                      "e**(i*pi)+1=0"





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