From owner-svn-src-all@freebsd.org Sun Nov 26 06:49:38 2017 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 93370DFEC7E; Sun, 26 Nov 2017 06:49:38 +0000 (UTC) (envelope-from pho@holm.cc) Received: from relay01.pair.com (relay01.pair.com [209.68.5.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 173E3802DF; Sun, 26 Nov 2017 06:49:38 +0000 (UTC) (envelope-from pho@holm.cc) Received: from x2.osted.lan (87-58-223-204-dynamic.dk.customer.tdc.net [87.58.223.204]) by relay01.pair.com (Postfix) with ESMTP id C9FA3D00370; Sun, 26 Nov 2017 01:49:30 -0500 (EST) Received: from x2.osted.lan (localhost [127.0.0.1]) by x2.osted.lan (8.14.9/8.14.9) with ESMTP id vAQ6nSHk069074 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 26 Nov 2017 07:49:28 +0100 (CET) (envelope-from pho@x2.osted.lan) Received: (from pho@localhost) by x2.osted.lan (8.14.9/8.14.9/Submit) id vAQ6nRTG069073; Sun, 26 Nov 2017 07:49:27 +0100 (CET) (envelope-from pho) Date: Sun, 26 Nov 2017 07:49:27 +0100 From: Peter Holm To: Mateusz Guzik Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r326200 - head/sys/kern Message-ID: <20171126064927.GA68986@x2.osted.lan> References: <201711252049.vAPKnRaA026691@repo.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201711252049.vAPKnRaA026691@repo.freebsd.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Nov 2017 06:49:38 -0000 On Sat, Nov 25, 2017 at 08:49:27PM +0000, Mateusz Guzik wrote: > Author: mjg > Date: Sat Nov 25 20:49:27 2017 > New Revision: 326200 > URL: https://svnweb.freebsd.org/changeset/base/326200 > > Log: > Add the missing lockstat check for thread lock. > > Modified: > head/sys/kern/kern_mutex.c > > Modified: head/sys/kern/kern_mutex.c > ============================================================================== > --- head/sys/kern/kern_mutex.c Sat Nov 25 20:37:13 2017 (r326199) Hi Mateusz, Could this be yours? spin lock 0xffffffff81ddc100 (turnstile chain) held by 0xfffff80014e57000 (tid 100277) too long panic: spin lock held too long cpuid = 20 time = 1511677687 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe104f86ea40 vpanic() at vpanic+0x268/frame 0xfffffe104f86eb10 kproc_shutdown() at kproc_shutdown/frame 0xfffffe104f86eb70 _mtx_lock_spin_failed() at _mtx_lock_spin_failed+0x87/frame 0xfffffe104f86eba0 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0x4ba/frame 0xfffffe104f86ed10 __mtx_lock_spin_flags() at __mtx_lock_spin_flags+0x21f/frame 0xfffffe104f86edb0 turnstile_trywait() at turnstile_trywait+0x32/frame 0xfffffe104f86edd0 __rw_rlock_hard() at __rw_rlock_hard+0x118/frame 0xfffffe104f86ee60 __rw_rlock_int() at __rw_rlock_int+0xd5/frame 0xfffffe104f86ee90 getblk() at getblk+0xdb/frame 0xfffffe104f86ef40 breadn_flags() at breadn_flags+0x6e/frame 0xfffffe104f86eff0 ffs_getcg() at ffs_getcg+0x20d/frame 0xfffffe104f86f0d0 ffs_nodealloccg() at ffs_nodealloccg+0xd0/frame 0xfffffe104f86f210 ffs_hashalloc() at ffs_hashalloc+0xb7/frame 0xfffffe104f86f290 ffs_valloc() at ffs_valloc+0x1c1/frame 0xfffffe104f86f390 ufs_makeinode() at ufs_makeinode+0xba/frame 0xfffffe104f86f520 ufs_create() at ufs_create+0x34/frame 0xfffffe104f86f540 VOP_CREATE_APV() at VOP_CREATE_APV+0x241/frame 0xfffffe104f86f5c0 VOP_CREATE() at VOP_CREATE+0x59/frame 0xfffffe104f86f620 vn_open_cred() at vn_open_cred+0x311/frame 0xfffffe104f86f770 vn_open() at vn_open+0x4c/frame 0xfffffe104f86f7b0 kern_openat() at kern_openat+0x212/frame 0xfffffe104f86f920 syscallenter() at syscallenter+0x4e4/frame 0xfffffe104f86f9f0 amd64_syscall() at amd64_syscall+0x4d/frame 0xfffffe104f86fab0 https://people.freebsd.org/~pho/stress/log/mateusz004.txt - Peter