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Message-Id: <20091202102311.60b80ae7.robertjenssen@ozemail.com.au>
Date: Wed, 2 Dec 2009 10:23:11 +1100
From: Robert Jenssen <robertjenssen@ozemail.com.au>
To: bug-followup@FreeBSD.org, karl@FS.denninger.net
Cc: Ed Schouten <ed@80386.nl>
Subject: Re:140947:[uart] [hang] Serial I/O is terminally screwed under 8.x.

>Number:         141088
>Category:       kern
>Synopsis:       Re: kern/140947: [uart] [hang] Serial I/O is terminally screwed under 8.x.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 02 00:00:13 UTC 2009
>Closed-Date:    Wed Dec 02 10:03:45 UTC 2009
>Last-Modified:  Wed Dec 02 10:03:45 UTC 2009
>Originator:     
>Release:        
>Organization:
>Environment:
>Description:
 I have had a similar problem: testing the USART on an Atmel AT91SAM7S-EK board with a simple echo at 115200 baud. On the host /dev/cuau0 is initialised with cfmakeraw() and select() has a 1s timeout. After some time the echo fails with select() on a read  descriptor timing out. "pstat -t" output is then:
       LINE   INQ  CAN  LIN  LOW  OUTQ  USE  LOW   COL  SESS  PGID STATE
      dcons     0    0    0    0     0    0    0     0     0     0 -
       dgdb     0    0    0    0     0    0    0     0     0     0 -
   sysmouse  1920    0    0  192     0    0    0     0     0     0 OiY
      ttyu0     0    0    0    0     0    0    0  4662     0     0 IC
 
 Output of uname -a:
 
 FreeBSD kraken 8.0-STABLE FreeBSD 8.0-STABLE #0: Mon Nov 30 16:23:21 EST 2009     root@kraken:/usr/obj/usr/src/sys/KRAKEN  i386
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Wed Dec 2 10:02:23 UTC 2009 
State-Changed-Why:  
Misfiled followup to kern/140947; content migrated. 


Responsible-Changed-From-To: gnats-admin->freebsd-bugs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Wed Dec 2 10:02:23 UTC 2009 
Responsible-Changed-Why:  

http://www.freebsd.org/cgi/query-pr.cgi?pr=141088 
>Unformatted:
