From owner-freebsd-current@FreeBSD.ORG Fri Jun 25 09:50:53 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F05501065670 for ; Fri, 25 Jun 2010 09:50:53 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id 7DEFE8FC18 for ; Fri, 25 Jun 2010 09:50:53 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OS5Yf-0004YC-PF for freebsd-current@freebsd.org; Fri, 25 Jun 2010 11:50:49 +0200 Received: from gw2.masterhost.ru ([87.242.97.5]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 25 Jun 2010 11:50:49 +0200 Received: from citrin by gw2.masterhost.ru with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 25 Jun 2010 11:50:49 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-current@freebsd.org From: Anton Yuzhaninov Date: Fri, 25 Jun 2010 09:50:40 +0000 (UTC) Organization: Vega Lines: 44 Sender: Message-ID: X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: gw2.masterhost.ru User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (Linux/2.6.32-gentoo-r7 (i686)) Subject: panic in deadlkres X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Fri, 25 Jun 2010 09:50:54 -0000 I've got panic on 9-current from Jun 25 2010 May be this is bug in deadlock resolver panic: blockable sleep lock (sleep mutex) process lock @ /usr/src/sys/kern/kern_clock.c:203 db> show alllocks Process 0 (kernel) thread 0xc4dcd270 (100047) shared sx allproc (allproc) r = 0 (0xc0885ebc) locked @ /usr/src/sys/kern/kern_clock.c:193 db> show lock 0xc4dcd270 class: spin mutex name: D flags: {SPIN, RECURSE} state: {OWNED} (kgdb) bt #0 doadump () at pcpu.h:248 #1 0xc05ae59f in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 #2 0xc05ae825 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:590 #3 0xc048ff45 in db_panic (addr=Could not find the frame base for "db_panic". ) at /usr/src/sys/ddb/db_command.c:478 #4 0xc0490533 in db_command (last_cmdp=0xc086ef1c, cmd_table=0x0, dopager=1) at /usr/src/sys/ddb/db_command.c:445 #5 0xc0490662 in db_command_loop () at /usr/src/sys/ddb/db_command.c:498 #6 0xc04923ef in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_main.c:229 #7 0xc05dade6 in kdb_trap (type=3, code=0, tf=0xc4b31bd0) at /usr/src/sys/kern/subr_kdb.c:535 #8 0xc078696b in trap (frame=0xc4b31bd0) at /usr/src/sys/i386/i386/trap.c:692 #9 0xc076ca0b in calltrap () at /usr/src/sys/i386/i386/exception.s:165 #10 0xc05daf30 in kdb_enter (why=0xc07ea02d "panic", msg=0xc07ea02d "panic") at cpufunc.h:71 #11 0xc05ae806 in panic (fmt=0xc07efd94 "blockable sleep lock (%s) %s @ %s:%d") at /usr/src/sys/kern/kern_shutdown.c:573 #12 0xc05ee30b in witness_checkorder (lock=0xc5148088, flags=9, file=0xc07e3b20 "/usr/src/sys/kern/kern_clock.c", line=203, interlock=0x0) at /usr/src/sys/kern/subr_witness.c:1067 #13 0xc05a093c in _mtx_lock_flags (m=0xc5148088, opts=0, file=0xc07e3b20 "/usr/src/sys/kern/kern_clock.c", line=203) at /usr/src/sys/kern/kern_mutex.c:200 #14 0xc05706a9 in deadlkres () at /usr/src/sys/kern/kern_clock.c:203 #15 0xc0588721 in fork_exit (callout=0xc05705ea , arg=0x0, frame=0xc4b31d38) at /usr/src/sys/kern/kern_fork.c:843 #16 0xc076ca80 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:270 -- WBR, Anton Yuzhaninov