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Date: Fri, 23 Mar 2001 20:49:26 -0800 (PST)
From: leclercn@videotron.ca
To: freebsd-gnats-submit@freebsd.org
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Subject: alpha/26042: dev_t size mismatch for DEC Alpha CPUs - kernel / userland
Sender: owner-freebsd-alpha@FreeBSD.ORG
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>Number:         26042
>Category:       alpha
>Synopsis:       dev_t size mismatch for DEC Alpha CPUs - kernel / userland
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-alpha
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Mar 23 20:50:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Normand Leclerc
>Release:        4.2 stable cvsed 23rd March
>Organization:
>Environment:
FreeBSD atom.quanta.ca 4.3-RC FreeBSD 4.3-RC #3: Fri Mar 23 22:41:15 EST 2001     root@atom.quanta.ca:/usr/src/sys/compile/ATOM  alpha
>Description:
  I Had problems with vinum.  While debugging, I found that the disk structure of vinum had a size mismatch between kernel module and userland.  I investigated and found that dev_t is a 64bits in kernel but 32 bits in userland.  (/usr/src/sys/sys/types.h).

  Once dev_t is converted to 64 bits for userland, vinum works perfectly.  This will affect more than just vinum.
>How-To-Repeat:
On an Alpha machine, vinum can't print configuration when one exists.  When vinum attempts to create a configuration, it will fail.
>Fix:
In /usr/src/sys/sys/types.h, I changed the line

	typedef u_int32_t dev_t;	/* device number */

to

#ifdef __alpha__
	typedef	u_int64_t	dev_t;	/* device number */
#else
	typedef	u_int32_t 	dev_t;	/* device number */
#endif

>Release-Note:
>Audit-Trail:
>Unformatted:

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