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Date: Wed, 26 Jan 2011 15:47:47 GMT
From: Michael Moll <kvedulv@kvedulv.de>
To: freebsd-gnats-submit@FreeBSD.org
Subject: named crashes with signal 11
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>Number:         154306
>Category:       arm
>Synopsis:       named crashes with signal 11
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    imp
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jan 26 15:50:07 UTC 2011
>Closed-Date:    Mon Feb 20 13:43:30 UTC 2012
>Last-Modified:  Mon Feb 20 13:43:30 UTC 2012
>Originator:     Michael Moll
>Release:        CURRENT
>Organization:
>Environment:
FreeBSD deskstar.kvedulv.de 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r217665: Sat Jan 22 20:15:50 CET 2011     mmoll@emperor.kvedulv.de:/usr/obj/arm.arm/usr/current/src/sys/DESKSTAR  arm
>Description:
When starting named on a Seagate Dockstar it crashes with signal 11
>How-To-Repeat:

>Fix:
A patch taken form http://cooltrainer.org/projects/freebsd-kirkwood/building/#patching is attached. It fixes the problem for me.

Patch attached with submission follows:

Index: contrib/bind9/lib/isc/arm/include/isc/atomic.h
===================================================================
--- contrib/bind9/lib/isc/arm/include/isc/atomic.h	(revision 217884)
+++ contrib/bind9/lib/isc/arm/include/isc/atomic.h	(working copy)
@@ -49,26 +49,22 @@
 static inline isc_int32_t
 isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val)
 {
-	register int done, ras_start;
+	register int done, ras_start = 0xffff1004;
 
 	__asm __volatile("1:\n"
 	    "adr	%1, 1b\n"
-	    "mov	%0, #0xe0000004\n"
 	    "str	%1, [%0]\n"
-	    "mov	%0, #0xe0000008\n"
 	    "adr	%1, 2f\n"
-	    "str	%1, [%0]\n"
+	    "str	%1, [%0, #4]\n"
 	    "ldr	%1, [%2]\n"
 	    "cmp	%1, %3\n"
 	    "streq	%4, [%2]\n"
 	    "2:\n"
 	    "mov	%3, #0\n"
-	    "mov	%0, #0xe0000004\n"
 	    "str	%3, [%0]\n"
 	    "mov	%3, #0xffffffff\n"
-	    "mov	%0, #0xe0000008\n"
-	    "str	%3, [%0]\n"
-	    : "=r" (ras_start), "=r" (done)
+	    "str	%3, [%0, #4]\n"
+	    : "+r" (ras_start), "=r" (done)
 	    ,"+r" (p), "+r" (cmpval), "+r" (val) : : "memory");
 	return (done);
 


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-arm->warner 
Responsible-Changed-By: dougb 
Responsible-Changed-When: Sat Jul 23 01:42:23 UTC 2011 
Responsible-Changed-Why:  

He has aexpressed an interest in this area 

http://www.freebsd.org/cgi/query-pr.cgi?pr=154306 
Responsible-Changed-From-To: warner->imp 
Responsible-Changed-By: eadler 
Responsible-Changed-When: Mon Jan 2 04:18:38 UTC 2012 
Responsible-Changed-Why:  
I belive the small mischievous devil might be interested in this. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=154306 
State-Changed-From-To: open->closed 
State-Changed-By: marius 
State-Changed-When: Mon Feb 20 13:40:54 UTC 2012 
State-Changed-Why:  
Close; this has been fixed in r224093 for 9+, which was MFC'ed to 8 in 
r230796 and to 7 in r230797. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=154306 
>Unformatted:
