NetBSD Problem Report #11921

Received: (qmail 15555 invoked from network); 9 Jan 2001 12:14:59 -0000
Message-Id: <200101091214.f09CE5200338@shark1.cambridge.arm.com>
Date: Tue, 9 Jan 2001 12:14:05 GMT
From: Richard Earnshaw <rearnsha@cambridge.arm.com>
Reply-To: rearnsha@cambridge.arm.com
To: gnats-bugs@gnats.netbsd.org
Subject: SHARK kernel freezes during compilation
X-Send-Pr-Version: 3.95

>Number:         11921
>Category:       port-arm32
>Synopsis:       SHARK kernel freezes during compilation
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-arm32-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jan 09 12:15:00 +0000 2001
>Closed-Date:    Thu Oct 18 09:29:05 +0000 2001
>Last-Modified:  Thu Oct 18 09:29:05 +0000 2001
>Originator:     Richard Earnshaw
>Release:        1.5Q
>Organization:
ARM
-- 
>Environment:

System: NetBSD shark1 1.5Q NetBSD 1.5Q (SHARK) #58: Tue Jan 9 11:12:55 GMT 2001 rearnsha@shark1:/usr/src/sys/arch/arm32/compile/SHARK arm32


>Description:

	SHARK kernel (on 32Mb machine) freezes solid while testing FSF CVS gcc.
	The machine doesn't panic, and the keyboard also locks up.  The only
	way back is a power-cycle.
	This problem has also been seen on a 1.5H kernel.

>How-To-Repeat:
	Check out gcc from the gcc.gnu.org repository (use a date stamp of
	Jan-9-2001).

	setenv GCC_SRC /dir_to_gcc_sources
	setenv GCC_BUILD /dir_to_gcc_build
	cd $GCC_BUILD
	$GCC_SRC/configure --languages=c
	gmake bootstrap
	mkdir gcc/testsuite
	cd gcc/testsuite
	$GCC_BUILD/gcc/xgcc -B $GCC_BUILD/gcc/ -w -O2 -c -o \
	  $GCC_BUILD/gcc/testuite/20001226-1.o \
	  $GCC_SRC/gcc/testsuite/gcc.c-torture/compile/20001226-1.c

>Fix:
	No idea, since the machine locks up, I can't really get a handle on
	the problem.

>Release-Note:
>Audit-Trail:

From: Steve Woodford <steve@mctavish.co.uk>
To: Richard Earnshaw <rearnsha@cambridge.arm.com>
Cc: <gnats-bugs@gnats.netbsd.org>
Subject: Re: port-arm32/11921: SHARK kernel freezes during compilation
Date: Tue, 9 Jan 2001 20:12:52 +0000 (GMT)

 On Tue, 9 Jan 2001, Richard Earnshaw wrote:

 > >Synopsis:       SHARK kernel freezes during compilation

 Does your Shark have an internal IDE disk?

 If so, this sounds similar to the problem in kern/9859.

 Cheers, Steve



From: Richard Earnshaw <rearnsha@arm.com>
To: Steve Woodford <steve@mctavish.co.uk>
Cc: gnats-bugs@gnats.netbsd.org
Subject: Re: port-arm32/11921: SHARK kernel freezes during compilation 
Date: Wed, 10 Jan 2001 09:30:09 +0000

 > On Tue, 9 Jan 2001, Richard Earnshaw wrote:
 > 
 > > >Synopsis:       SHARK kernel freezes during compilation
 > 
 > Does your Shark have an internal IDE disk?
 > 
 > If so, this sounds similar to the problem in kern/9859.
 > 
 > Cheers, Steve
 > 
 > 


 It could be.  The symptoms are very similar, but I can only recall it 
 happening when swapping, so I wouldn't rule out a VM/pmap problem.

 R.


From: Richard Earnshaw <rearnsha@arm.com>
To: Steve Woodford <steve@mctavish.co.uk>
Cc: gnats-bugs@gnats.netbsd.org
Subject: Re: port-arm32/11921: SHARK kernel freezes during compilation 
Date: Wed, 10 Jan 2001 18:04:19 +0000

 It's happened to me again.  This time while linking the java compiler (at 
 the time the CPU was running about 50% of the time in interrupt mode -- 
 well, so says systat vmstat)

 You could well be right that this is the same problem as kern/9859.  The 
 question is: how do we get things into a state where we can find out?

 R.

State-Changed-From-To: open->closed 
State-Changed-By: rearnsha 
State-Changed-When: Thu Oct 18 02:26:52 PDT 2001 
State-Changed-Why:  
Fixed bug in vm_machdep.c which caused page zero mapping to be removed 
from a process that might still be running. 
>Unformatted:

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