NetBSD Problem Report #46031
From www@NetBSD.org Thu Feb 16 20:56:47 2012
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Date: Thu, 16 Feb 2012 20:56:38 +0000 (UTC)
From: bvanzant@clovetree.com
Reply-To: bvanzant@clovetree.com
To: gnats-bugs@NetBSD.org
Subject: fatal page fault in supervisor mode on AWS/xen
X-Send-Pr-Version: www-1.0
>Number: 46031
>Category: port-xen
>Synopsis: kernel crash: fatal page fault in supervisor mode on AWS/xen
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: port-xen-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Feb 16 21:00:00 +0000 2012
>Closed-Date:
>Last-Modified: Wed Jan 09 19:13:19 +0000 2019
>Originator: Bob Van Zant
>Release: 5.1-stable
>Organization:
Clovetree
>Environment:
AWS AMI: NetBSD-5.1 (ami-2da67644)
NetBSD ip-10-118-62-112.ec2.internal 5.1_STABLE NetBSD 5.1_STABLE (XEN3_DOMU) #0: Sun Feb 5 04:48:49 CET 2012 jym@paris:/home/jym/cvs/nb5/obj/sys/arch/amd64/compile/XEN3_DOMU amd64
>Description:
Output from "get system log" on AWS.
uvm_fault(0xffffffff805d7340, 0xffffffff81400000, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff803854bb cs e030 rflags 10282 cr2 ffffffff81400ff8 cpl 0 rsp ffffa00057d53710
panic: trap
Begin traceback...
uvm_fault(0xffffa0005629eb88, 0x0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff8037f33c cs e030 rflags 10246 cr2 0 cpl 0 rsp ffffa00057d532c0
panic: trap
Faulted in mid-traceback; aborting...
dump to dev 142,17 not possible
rebooting...
>How-To-Repeat:
I had mounted a 20GB EBS volume on /usr/src (filesystem type is BSD4.2). The disk label from the EBS volume (/dev/xbd2) was:
5 partitions:
# size offset fstype [fsize bsize cpg/sgs]
a: 39845888 2048 4.2BSD 0 0 0 # (Cyl. 1 - 19456)
c: 41942977 63 unused 0 0 # (Cyl. 0*- 20479)
d: 41943040 0 unused 0 0 # (Cyl. 0 - 20479)
e: 2095104 39847936 4.2BSD 0 0 0 # (Cyl. 19457 - 20479)
Once in /usr/src I followed instructions for checkout out the netbsd source from CVS (http://netbsd.org/docs/guide/en/chap-fetch.html). During the initial checkout (several minutes in) my ssh connection failed. After several minutes I found what I pasted into the "full description" box.
On reboot this machine ended up with an fsck failure and had to be put down.
>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: kern-bug-people->port-xen-bug-people
Responsible-Changed-By: jdolecek@NetBSD.org
Responsible-Changed-When: Tue, 14 Aug 2018 17:47:36 +0000
Responsible-Changed-Why:
Moved to port-xen
State-Changed-From-To: open->feedback
State-Changed-By: jdolecek@NetBSD.org
State-Changed-When: Tue, 14 Aug 2018 17:47:36 +0000
State-Changed-Why:
Can you confirm whether this still happens with 8.0?
Responsible-Changed-From-To: port-xen-bug-people->port-xen-maintainer
Responsible-Changed-By: jdolecek@NetBSD.org
Responsible-Changed-When: Tue, 28 Aug 2018 18:40:18 +0000
Responsible-Changed-Why:
Fixing to port-xen-maintainer
State-Changed-From-To: feedback->open
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Wed, 09 Jan 2019 19:13:19 +0000
State-Changed-Why:
Feedback mail is bouncing.
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.43 2018/01/16 07:36:43 maya Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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