From owner-freebsd-fs@FreeBSD.ORG Fri Jun 1 12:11:36 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9579E10657AA; Fri, 1 Jun 2012 12:11:36 +0000 (UTC) (envelope-from Kashyap.Desai@lsi.com) Received: from na3sys009aog128.obsmtp.com (na3sys009aog128.obsmtp.com [74.125.149.141]) by mx1.freebsd.org (Postfix) with ESMTP id E62C18FC08; Fri, 1 Jun 2012 12:11:35 +0000 (UTC) Received: from paledge01.lsi.com ([192.19.193.42]) (using TLSv1) by na3sys009aob128.postini.com ([74.125.148.12]) with SMTP ID DSNKT8ixd7gFagsq0EeI9wxz+siDPKs7LS8s@postini.com; Fri, 01 Jun 2012 05:11:36 PDT Received: from PALCAS01.lsi.com (128.94.213.117) by PALEDGE01.lsi.com (192.19.193.42) with Microsoft SMTP Server (TLS) id 8.3.213.0; Fri, 1 Jun 2012 08:06:56 -0400 Received: from inbexch01.lsi.com (135.36.98.37) by PALCAS01.lsi.com (128.94.213.117) with Microsoft SMTP Server (TLS) id 8.3.213.0; Fri, 1 Jun 2012 08:00:45 -0400 Received: from inbmail01.lsi.com ([135.36.98.64]) by inbexch01.lsi.com ([135.36.98.37]) with mapi; Fri, 1 Jun 2012 17:30:42 +0530 From: "Desai, Kashyap" To: "freebsd-scsi@freebsd.org" , "freebsd-fs@freebsd.org" Date: Fri, 1 Jun 2012 17:30:39 +0530 Thread-Topic: Kernel panic in FreeBSD-8.3 from UFS Thread-Index: Ac0/7imu82JsmcHyQVm3sDwdYp9fsA== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "McConnell, Stephen" Subject: Kernel panic in FreeBSD-8.3 from UFS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jun 2012 12:11:36 -0000 Hi, We have seen kernel panic while doing IO along with HBA reset. This looks t= o be very rare but not sure if someone can help me to understand what is a = issue here. To me it does not look any issue with underline Device Driver <= mps>=20 See below back trace. #0 doadump (textdump=3D1) at pcpu.h:244 244 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump (textdump=3D1) at pcpu.h:244 #1 0xc0a1845a in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:442 #2 0xc0a186f1 in panic (fmt=3DVariable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:607 #3 0xc0c7ceda in kmem_malloc (map=3D0xc15c808c, size=3D32768, flags=3D2) at /usr/src/sys/vm/vm_kern.c:334 #4 0xc0c708e7 in page_alloc (zone=3D0x0, bytes=3D32768, pflag=3D0xf19839bf= "\002",=20 wait=3D2) at /usr/src/sys/vm/uma_core.c:994 #5 0xc0c72fe0 in uma_large_malloc (size=3D32768, wait=3D2) at /usr/src/sys/vm/uma_core.c:3067 #6 0xc0a04fac in malloc (size=3D32768, mtp=3D0xc102b808, flags=3D2) at /usr/src/sys/kern/kern_malloc.c:492 #7 0xc0c42e89 in softdep_disk_io_initiation (bp=3D0xdef881fc) at /usr/src/sys/ufs/ffs/ffs_softdep.c:10126 #8 0xc0c5208f in ffs_geom_strategy (bo=3D0xc5fc30ac, bp=3D0xdef881fc) at buf.h:411 #9 0xc0c65a43 in ufs_strategy (ap=3D0xf1983b00) at /usr/src/sys/ufs/ufs/ufs_vnops.c:2317 #10 0xc0d6a6dd in VOP_STRATEGY_APV (vop=3D0xc102e4a0, a=3D0xf1983b00) at vnode_if.c:2171 #11 0xc0a8d19e in bufstrategy (bo=3D0xc6b901bc, bp=3D0xdef881fc) at vnode_i= f.h:940 #12 0xc0a9352e in bufwrite (bp=3D0xdef881fc) at buf.h:404 #13 0xc0a8db5c in vfs_bio_awrite (bp=3D0xdef881fc) at buf.h:392 #14 0xc0c584c5 in ffs_syncvnode (vp=3D0xc6b90110, waitfor=3D1) at /usr/src/sys/ufs/ffs/ffs_vnops.c:288 #15 0xc0c58739 in ffs_fsync (ap=3D0xf1983c4c) at /usr/src/sys/ufs/ffs/ffs_vnops.c:187 #16 0xc0d69712 in VOP_FSYNC_APV (vop=3D0xc102dfc0, a=3D0xf1983c4c) at vnode_if.c:1267 #17 0xc0ab5d49 in sys_fsync (td=3D0xc64ea8a0, uap=3D0xf1983cec) at vnode_if= .h:549 #18 0xc0d49315 in syscall (frame=3D0xf1983d28) at subr_syscall.c:131 #19 0xc0d32af1 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:266 #20 0x00000033 in ?? ( To me it looks like UFS is doing something to crash the kernel. ` Kashyap