Date: Sat, 9 Jan 2010 08:44:50 +1100 (EST) From: Peter Jeremy <peterjeremy@acm.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/142489: [lor] allproc/zfs LOR Message-ID: <201001082144.o08Lio6m055104@server.vk2pj.dyndns.org> Resent-Message-ID: <201001082150.o08Lo2Of085093@freefall.freebsd.org>
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>Number: 142489 >Category: kern >Synopsis: [lor] allproc/zfs LOR >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jan 08 21:50:02 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Peter Jeremy >Release: FreeBSD 8.0-STABLE amd64 >Organization: n/a >Environment: System: FreeBSD server.vk2pj.dyndns.org 8.0-STABLE FreeBSD 8.0-STABLE #11: Mon Nov 30 16:36:34 EST 2009 root@server.vk2pj.dyndns.org:/var/obj/usr/src/sys/server amd64 >Description: New LOR: lock order reversal: 1st 0xffffffff807417c0 allproc (allproc) @ /usr/src/sys/vm/vm_meter.c:130 2nd 0xffffff002c263ba8 zfs (zfs) @ /usr/src/sys/kern/vfs_subr.c:2188 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2c witness_checkorder() at witness_checkorder+0x66f __lockmgr_args() at __lockmgr_args+0x475 vop_stdlock() at vop_stdlock+0x39 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x52 _vn_lock() at _vn_lock+0x47 vrele() at vrele+0xc3 vm_object_deallocate() at vm_object_deallocate+0x1ad _vm_map_unlock() at _vm_map_unlock+0x70 vm_map_remove() at vm_map_remove+0x6f vmspace_free() at vmspace_free+0x56 vmtotal() at vmtotal+0x3d5 sysctl_root() at sysctl_root+0xa1 userland_sysctl() at userland_sysctl+0x158 __sysctl() at __sysctl+0xaa syscall() at syscall+0x1ac Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (202, FreeBSD ELF64, __sysctl), rip = 0x800bc5a9c, rsp = 0x7fffffffdaf8, rbp = 0x7fffffffdb08 --- >How-To-Repeat: Possibly running 'vmstat -m' >Fix: Unknown >Release-Note: >Audit-Trail: >Unformatted:
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