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Date: Mon, 15 Dec 2003 08:14:01 +0100 (CET)
From: dirk.meyer@dinoex.sub.org
Reply-To: dirk.meyer@dinoex.sub.org
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: mutex problems in geom_io
X-Send-Pr-Version: 3.113
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>Number:         60247
>Category:       kern
>Synopsis:       mutex problems in geom_io
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    le
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec 14 23:20:22 PST 2003
>Closed-Date:    Sat Nov 26 15:28:50 GMT 2005
>Last-Modified:  Sat Nov 26 15:28:50 GMT 2005
>Originator:     Dirk Meyer
>Release:        FreeBSD 5.1-CURRENT i386
>Organization:
privat
>Environment:

FreeBSD 5.2-CURRENT #8: Sun Dec 14 11:17:35 CET 2003 GENERIC

>Description:

Dec 14 12:58:58 current kernel: Stack backtrace:
Dec 15 08:02:33 current syslogd: kernel boot file is /boot/kernel/kernel
Dec 15 08:02:33 current kernel: ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE>
Dec 15 08:02:33 current kernel: vinum: data2.p0.s0 is crashed by force
Dec 15 08:02:33 current kernel: vinum: data2.p0 is faulty
Dec 15 08:02:33 current kernel: vinum: data2 is down
Dec 15 08:02:33 current kernel: malloc() of "16" with the following non-sleepable locks held:
Dec 15 08:02:33 current kernel: exclusive sleep mutex g_xup r = 0 (0xd7596cbc) locked @ /usr/src/sys/geom/geom_io.c: 374
Dec 15 08:02:33 current kernel: malloc() of "16" with the following non-sleepable locks held:
Dec 15 08:02:33 current kernel: exclusive sleep mutex g_xup r = 0 (0xd7596cbc) locked @ /usr/src/sys/geom/geom_io.c: 374
Dec 15 08:02:33 current kernel: fatal:data2.p0.s0 read error, block 55769385 for 16384 bytes
Dec 15 08:02:33 current kernel: data2.p0.s0: user buffer block 54949920 for 16384 bytes
Dec 15 08:02:33 current kernel: malloc() of "16" with the following non-sleepable locks held:
Dec 15 08:02:33 current kernel: exclusive sleep mutex g_xup r = 0 (0xd7596cbc) locked @ /usr/src/sys/geom/geom_io.c: 374

>How-To-Repeat:

	set a vinum volume down ...

>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-geom 
Responsible-Changed-By: arved 
Responsible-Changed-When: Thu May 20 05:10:18 PDT 2004 
Responsible-Changed-Why:  
Assign to freebsd-geom mailinglist for evaluation 

http://www.freebsd.org/cgi/query-pr.cgi?pr=60247 
State-Changed-From-To: open->analyzed 
State-Changed-By: phk 
State-Changed-When: Thu May 20 08:05:14 PDT 2004 
State-Changed-Why:  
This is a bug in vinum which has previously been identified. 

It is not legal to sleep in the disk-I/O path and vinum will 
use malloc(M_WAITOK) in certain error-handling code paths. 


http://www.freebsd.org/cgi/query-pr.cgi?pr=60247 
Responsible-Changed-From-To: freebsd-geom->le 
Responsible-Changed-By: le 
Responsible-Changed-When: Thu May 20 12:15:56 PDT 2004 
Responsible-Changed-Why:  
I'll have a look at this one. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=60247 
State-Changed-From-To: analyzed->closed 
State-Changed-By: le 
State-Changed-When: Sat Nov 26 15:27:41 GMT 2005 
State-Changed-Why:  
This problem won't be solved, I guess, since 'classic' vinum 
isn't supported anymore. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=60247 
>Unformatted:
