kern/60581: lock order reversal
tuc at ttsg.com
tuc at ttsg.com
Thu Dec 25 20:50:20 PST 2003
>Number: 60581
>Category: kern
>Synopsis: lock order reversal
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Dec 25 20:50:17 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: Tuc
>Release: FreeBSD 5.2-CURRENT i386
>Organization:
TTSG Internet Services, Inc.
>Environment:
System: FreeBSD vjofn2.ttsg.com 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Fri Dec 19 15:38:09 EST 2003 root at vjofn2.ttsg.com:/usr/obj/usr/src/sys/VJOFN2 i386
>Description:
Found the following in my /var/log/messages
Dec 25 20:20:14 vjofn2 kernel: lock order reversal
Dec 25 20:20:14 vjofn2 kernel: 1st 0xc0954900 UMA lock (UMA lock) @ /usr/src/sys/vm/uma_core.c:1200
Dec 25 20:20:14 vjofn2 kernel: 2nd 0xc1031100 system map (system map) @ /usr/src/sys/vm/vm_map.c:2210
Dec 25 20:20:14 vjofn2 kernel: Stack backtrace:
Dec 25 20:30:53 vjofn2 kernel: lock order reversal
Dec 25 20:30:53 vjofn2 kernel: 1st 0xca910420 vm object (vm object) @ /usr/src/sys/vm/swap_pager.c:1323
Dec 25 20:30:53 vjofn2 kernel: 2nd 0xc0953d80 swap_pager swhash (swap_pager swhash) @ /usr/src/sys/vm/swap_pager.c:1838
Dec 25 20:30:53 vjofn2 kernel: 3rd 0xc103aa50 vm object (vm object) @ /usr/src/sys/vm/uma_core.c:873
Dec 25 20:30:53 vjofn2 kernel: Stack backtrace:
>How-To-Repeat:
Dunno
>Fix:
Dunno
>Release-Note:
>Audit-Trail:
>Unformatted:
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