From owner-freebsd-current@freebsd.org Thu Oct 1 16:38:03 2015 Return-Path: Delivered-To: freebsd-current@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 7D52AA0DB2B for ; Thu, 1 Oct 2015 16:38:03 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-pa0-x230.google.com (mail-pa0-x230.google.com [IPv6:2607:f8b0:400e:c03::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 502441BB7 for ; Thu, 1 Oct 2015 16:38:03 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by pacfv12 with SMTP id fv12so80841834pac.2 for ; Thu, 01 Oct 2015 09:38:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=MZ1dAQVQsk9M+ftmxP6KxcmBwUnJJi96kbeO+bCbyqg=; b=RDcPM6N11dWTo7RbzIw3HRtSoG9662EiivVTQQx4Z6mQz9A73THIV6GUEAifDevR5+ 3O0C8mFdKFwmInZvA3Gh7oaBdC6BRB0/QnxuvylcAGa1T6T2nTWh6qFlsBzUpbXmFoRU sztdyz3xIl4t1PLFtPCbBdwhJan6oeOUxCy+tZ74rX5gjZdw5RXUhdHvGUH5zQzzeQlP h1hwR7N+Wbz0mTpvjrFwgmKV0AomrWdcBvsc/Yo0CDq9GdvovQ/2mW9pVpz4HXkp4KUX UJeRjyvqvUXJv3URBxkSuO5l1IIA1rHZlcoPE1/zbdBtvTh9Z5XjHhJletvTerQ3Og1t e8IA== X-Received: by 10.68.231.5 with SMTP id tc5mr13536992pbc.54.1443717482900; Thu, 01 Oct 2015 09:38:02 -0700 (PDT) Received: from raichu ([104.232.114.184]) by smtp.gmail.com with ESMTPSA id kw10sm7630678pbc.25.2015.10.01.09.38.01 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Oct 2015 09:38:02 -0700 (PDT) Sender: Mark Johnston Date: Thu, 1 Oct 2015 09:37:58 -0700 From: Mark Johnston To: Fabian Keil Cc: freebsd-current@FreeBSD.org Subject: Re: panic: getblk: size(131072) > MAXBCACHEBUF(65536) Message-ID: <20151001163758.GA2188@raichu> References: <5afc3b28.65902f68@fabiankeil.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5afc3b28.65902f68@fabiankeil.de> User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 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: Thu, 01 Oct 2015 16:38:03 -0000 On Thu, Oct 01, 2015 at 03:23:56PM +0200, Fabian Keil wrote: > Shortly after upgrading to a kernel based on r288437 I got the following > panic: > > Unread portion of the kernel message buffer: > [5112] panic: getblk: size(131072) > MAXBCACHEBUF(65536) > [...] > (kgdb) where > #0 doadump (textdump=0) at pcpu.h:221 > #1 0xffffffff8030ca9e in db_dump (dummy=, dummy2=false, dummy3=0, dummy4=0x0) at /usr/src/sys/ddb/db_command.c:533 > #2 0xffffffff8030c651 in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:440 > #3 0xffffffff8030c2e4 in db_command_loop () at /usr/src/sys/ddb/db_command.c:493 > #4 0xffffffff8030ef0b in db_trap (type=, code=0) at /usr/src/sys/ddb/db_main.c:251 > #5 0xffffffff805d3cd4 in kdb_trap (type=3, code=0, tf=) at /usr/src/sys/kern/subr_kdb.c:654 > #6 0xffffffff808651bf in trap (frame=0xfffffe009452b5f0) at /usr/src/sys/amd64/amd64/trap.c:549 > #7 0xffffffff80849e4a in calltrap () at /usr/src/sys/amd64/amd64/exception.S:234 > #8 0xffffffff805d33ae in kdb_enter (why=0xffffffff80953dc1 "panic", msg=0xffffffff805d9e90 "U[...]") at cpufunc.h:63 > #9 0xffffffff805902b9 in vpanic (fmt=, ap=) at /usr/src/sys/kern/kern_shutdown.c:746 > #10 0xffffffff80590103 in panic (fmt=0x0) at /usr/src/sys/kern/kern_shutdown.c:684 > #11 0xffffffff806310e7 in getblk (vp=, blkno=, size=, slpflag=, slptimeo=, flags=) > at /usr/src/sys/kern/vfs_bio.c:3324 > #12 0xffffffff8063cf81 in vop_stdadvise (ap=) at /usr/src/sys/kern/vfs_default.c:1099 > #13 0xffffffff808ec827 in VOP_ADVISE_APV (vop=, a=) at vnode_if.c:3848 > #14 0xffffffff80662844 in vn_read (fp=, uio=, active_cred=, flags=, td=0x8) at vnode_if.h:1648 > #15 0xffffffff8065e27a in vn_io_fault (fp=0xfffff8000631eaf0, uio=0xfffffe009452baa0, active_cred=0xfffffe009452b5a0, flags=0, td=0x8) at /usr/src/sys/kern/vfs_vnops.c:1169 > #16 0xffffffff805f0385 in dofileread (td=0xfffff800279fd9a0, fd=3, fp=0xfffff8000631eaf0, auio=0xfffffe009452baa0, offset=, flags=50) at file.h:300 > #17 0xffffffff805f00a8 in kern_readv (td=0xfffff800279fd9a0, fd=3, auio=0xfffffe009452baa0) at /usr/src/sys/kern/sys_generic.c:273 > #18 0xffffffff805f0033 in sys_read (td=0x0, uap=) at /usr/src/sys/kern/sys_generic.c:186 > #19 0xffffffff808661e8 in amd64_syscall (td=0xfffff800279fd9a0, traced=0) at subr_syscall.c:139 > #20 0xffffffff8084a12b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:394 > #21 0x00000008014d752a in ?? () > Previous frame inner to this frame (corrupt stack?) > Current language: auto; currently minimal > > The system was running for about 50 minutes before the panic occurred and > didn't do anything special at the time (running Xorg, Firefox, ssh ...). > > I suspect r288431 and am currently compiling a kernel with the > commit reverted. The previous kernel was based on r288265. > > Fabian Thanks for the report. This should be fixed as of r288451. (Sorry for misspelling your first name in the commit message!) -Mark