Date: Mon, 20 Jul 2009 21:43:04 GMT From: Rene Ladan <rene@FreeBSD.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/136945: [lor] filedesc structure/ufs (poll) Message-ID: <200907202143.n6KLh4V6008529@www.freebsd.org> Resent-Message-ID: <200907202150.n6KLo5eE004321@freefall.freebsd.org>
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>Number: 136945 >Category: kern >Synopsis: [lor] filedesc structure/ufs (poll) >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: Mon Jul 20 21:50:05 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Rene Ladan >Release: 8.0-BETA2 amd64 >Organization: >Environment: FreeBSD self.rene-ladan.nl 8.0-BETA2 FreeBSD 8.0-BETA2 #0: Wed Jul 15 21:48:41 UTC 2009 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: lock order reversal: 1st 0xffffff0078c6b648 filedesc structure (filedesc structure) @ /usr/src/sys/kern/sys_generic.c:1211 2nd 0xffffff0078b73620 ufs (ufs) @ /usr/src/sys/kern/vfs_vnops.c:863 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e __lockmgr_args() at __lockmgr_args+0xcf3 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vn_poll() at vn_poll+0x64 poll() at poll+0x1b8 syscall() at syscall+0x1af Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (209, FreeBSD ELF64, poll), rip = 0x804878e6c, rsp = 0x7fffffff7a88, rbp = 0x38 --- >How-To-Repeat: GENERIC kernel, only devfs and UFS2 filesystems mounted via /dev/ad* (/ , /var, /tmp, /usr) >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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