From owner-freebsd-current@FreeBSD.ORG Sun Dec 28 03:30:16 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 27AAC16A4CE for ; Sun, 28 Dec 2003 03:30:16 -0800 (PST) Received: from transport.cksoft.de (transport.cksoft.de [62.111.66.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6CE9E43D3F for ; Sun, 28 Dec 2003 03:30:14 -0800 (PST) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from transport.cksoft.de (localhost [127.0.0.1]) by transport.cksoft.de (Postfix) with ESMTP id 2AD441FF91D for ; Sun, 28 Dec 2003 12:30:12 +0100 (CET) Received: by transport.cksoft.de (Postfix, from userid 66) id 9B9891FF90C; Sun, 28 Dec 2003 12:30:10 +0100 (CET) Received: by mail.int.zabbadoz.net (Postfix, from userid 1060) id 15BBF153F6; Sun, 28 Dec 2003 11:30:06 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.int.zabbadoz.net (Postfix) with ESMTP id 0B98C153ED for ; Sun, 28 Dec 2003 11:30:07 +0000 (UTC) Date: Sun, 28 Dec 2003 11:30:06 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@e0-0.zab2.int.zabbadoz.net To: current@freebsd.org Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS cksoft-s20020300-20031204bz on transport.cksoft.de Subject: LOR kern_timeout.c / sched_4bsd.c X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Dec 2003 11:30:16 -0000 Hi, in kernel from 20031226-1337 UTC I can see the following LOR: --- cut --- [3] f:80 typ:165 s(CHS):0/0/1 e(CHS):1023/254/63 s:0 l:50000 [0] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0 [1] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0 [2] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0 [3] f:80 typ:165 s(CHS):0/0/1 e(CHS):1023/254/63 s:0 l:50000 lock order reversal 1st 0xc05dae40 dont_sleep_in_callout (dont_sleep_in_callout) @ ../sys/kern/kern_timeout.c:224 2nd 0xc05da220 allproc (allproc) @ ../sys/kern/sched_4bsd.c:257 Stack backtrace: backtrace(1,0,ffffffff,c05de5d0,c05dedf0) at backtrace+0x12 witness_lock(c05da220,0,c0594908,101,0) at witness_lock+0x534 _sx_slock(c05da220,c0594908,101,80,8) at _sx_slock+0x77 schedcpu(0,c05dae40,0,c059453c,e0) at schedcpu+0x3c softclock(0) at softclock+0x1a8 ithread_loop(c2a89500,c98b5d48,c2a89500,c04753e0,0) at ithread_loop+0x12b fork_exit(c04753e0,c2a89500,c98b5d48) at fork_exit+0x98 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xc98b5d7c, ebp = 0 --- Expensive timeout(9) function: 0xc0494c80(0) 0.965603434 s Mounting root from ufs:/dev/md0c start_init: trying /sbin/init --- cut --- -- Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT 56 69 73 69 74 http://www.zabbadoz.net/