From owner-freebsd-stable@FreeBSD.ORG Sat Jan 11 22:12:17 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7E1F5986 for ; Sat, 11 Jan 2014 22:12:17 +0000 (UTC) Received: from nm9.bullet.mail.ne1.yahoo.com (nm9.bullet.mail.ne1.yahoo.com [98.138.90.72]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 2F531198C for ; Sat, 11 Jan 2014 22:12:16 +0000 (UTC) Received: from [98.138.100.117] by nm9.bullet.mail.ne1.yahoo.com with NNFMP; 11 Jan 2014 22:12:10 -0000 Received: from [98.138.84.41] by tm108.bullet.mail.ne1.yahoo.com with NNFMP; 11 Jan 2014 22:12:09 -0000 Received: from [127.0.0.1] by smtp109.mail.ne1.yahoo.com with NNFMP; 11 Jan 2014 22:12:09 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1389478329; bh=CDwHrfUUaX0/nicx2e+I5qTP6WL4t6hvSpkdpESpF2o=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:Subject:From:Reply-To:To:Content-Type:Date:Message-ID:Mime-Version:X-Mailer:Content-Transfer-Encoding; b=adYpgKbXSLNXf2+u4TRO30zpFvNcxBeyjb4sXxu+ViYlJJKUjkYC65GphYhJCODBFlF/GHQWBWZ7OVdQ7bRFEWoxiEHNceijOKkyikaY93etCTEK7mvB/0omWR43VmXA6EPnCGBadEGOFe8XE0QO9+nGMk1To7BAbiyQfol3FDY= X-Yahoo-Newman-Id: 119753.56629.bm@smtp109.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: tJDAPnMVM1mGD1hVqBSEl3ycwtx1mJU8NLse5nYec3RdPZl QR2L_FjytfXBmt9IL44ktAfuIXthPSSL8LCmwNUGqDKW7DnE5BmN3HFO6TUk UZssvxxXrhtQgspQX.aKuoRFhU5SiYesKPm_Ma4b52ym_rQO08KuDJDXBmuI EAvqR3ciqvPI8cxL6E3a1jhFmcDKyT3QyKKUTRsANd4EHe9AOhUzaMOwPE2d f3N_bbLC.X0EvOJZSbLkRYToqPWfIgna_yx4_xQuJCbCkpIldFDBDec9JFx9 CY2AwKBjVPu0.hzgNEwziy3QpG5d4pZqPoOb4ajmpj_bwTjGlZhgqN3lXDib yXrRWmAvOVv468bN2L4ethurPDE6CZ9fJYd1ZjIXkKfXCrI78bZFppl34kME EE0eJ.bHFRAT.VYbW3.VbnUyGRUBUSWAryfaX0p7gqtOpKrUPMiO.VOUkIs5 JDjPyt2nXI0AOJdasUnK0_bZdAz.lMwI4jUm1qXq9AX3gzhlDuhMgWFjs8Jk JI9YAwsTRZyLlBSAPj25qH7c8MrR5tccEe0MjHORj3AutIY1eOT_9Qq.ixev gkNB8k.E1Sf.ffek8B_9Zgawzv55tBTEGfn_QM_cecY_TOHtDEUfIO.xBid. Vy580WnLHm78E9YVX.2YZQGrY5HDm2WZ.jcdAVPaU6MucggaJ2tdaGdbV8nu VTu_3ItON_EGoI4Z6hf68w02Ap8LiBcI09gM- X-Yahoo-SMTP: u5BKR6OswBC_iZJVfGRoMkTIpc8pEA4- X-Rocket-Received: from [192.168.100.228] (sean_bruno@24.23.220.111 with plain [63.250.193.228]) by smtp109.mail.ne1.yahoo.com with SMTP; 11 Jan 2014 14:12:09 -0800 PST Subject: panic: stable/10 with Debugging enabled in kern_cons.c:500 From: Sean Bruno To: "freebsd-stable@freebsd.org" Content-Type: text/plain; charset="us-ascii" Date: Sat, 11 Jan 2014 14:12:07 -0800 Message-ID: <1389478327.46758.7.camel@powernoodle.corp.yahoo.com> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: sbruno@freebsd.org List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Jan 2014 22:12:17 -0000 I can't imagine that I'm the first person to run with the following debug options enabled: http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html But, I can't get stable/10 to post on a plain old supermicro box with those debugging symbols enabled. random: unblocking device. panic: mtx_lock_spin: recursed on non-recursive mutex cnputs_mtx @ /usr/src/sys/kern/kern_cons.c:500 cpuid = 0 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe1764e681b0 kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe1764e68260 vpanic() at vpanic+0x126/frame 0xfffffe1764e682a0 kassert_panic() at kassert_panic+0x136/frame 0xfffffe1764e68310 __mtx_lock_spin_flags() at __mtx_lock_spin_flags+0x166/frame 0xfffffe1764e68350 cnputs() at cnputs+0x32/frame 0xfffffe1764e68370 putchar() at putchar+0x13a/frame 0xfffffe1764e683f0 kvprintf() at kvprintf+0xda/frame 0xfffffe1764e684f0 vprintf() at vprintf+0x87/frame 0xfffffe1764e685c0 printf() at printf+0x43/frame 0xfffffe1764e68620 witness_checkorder() at witness_checkorder+0xa99/frame 0xfffffe1764e686b0 __mtx_lock_spin_flags() at __mtx_lock_spin_flags+0x95/frame 0xfffffe1764e686f0 uart_cnputc() at uart_cnputc+0x3b/frame 0xfffffe1764e68710 cnputc() at cnputc+0x7f/frame 0xfffffe1764e68740 cnputs() at cnputs+0x58/frame 0xfffffe1764e68760 putchar() at putchar+0x13a/frame 0xfffffe1764e687e0 kvprintf() at kvprintf+0xda/frame 0xfffffe1764e688e0 vprintf() at vprintf+0x87/frame 0xfffffe1764e689b0 printf() at printf+0x43/frame 0xfffffe1764e68a10 witness_checkorder() at witness_checkorder+0xa99/frame 0xfffffe1764e68aa0 __mtx_lock_spin_flags() at __mtx_lock_spin_flags+0x95/frame 0xfffffe1764e68ae0 msleep_spin_sbt() at msleep_spin_sbt+0x90/frame 0xfffffe1764e68b70 random_kthread() at random_kthread+0x1d0/frame 0xfffffe1764e68bb0 fork_exit() at fork_exit+0x84/frame 0xfffffe1764e68bf0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe1764e68bf0 --- trap 0, rip = 0, rsp = 0xfffffe1764e68cb0, rbp = 0 --- KDB: enter: panic [ thread pid 14 tid 100057 ] Stopped at kdb_enter+0x3e: movq $0,kdb_why