Date: Mon, 2 Jul 2001 23:04:22 -0700 From: "Robert L Sowders" <rsowders@usgs.gov> To: Tor.Egge@fast.no Cc: freebsd-stable@FreeBSD.ORG, ohartman@klima.physik.uni-mainz.de, owner-freebsd-stable@FreeBSD.ORG Subject: Re: HELP! Server crashes since last cvsupdate! Message-ID: <OF3C932387.AE1F7911-ON88256A7E.0020AD8E@wr.usgs.gov>
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Ok, Now I really confused, Checking back thru cvsweb it seems that there is some confusion going on, or maybe it's me, but the mfs_vfsops.c version 1.81.2.1 is dated 2001/06/17 at 5:05 and version 1.82, is dated 2000/04/15 03:34:21. Seems to be a slight mixup here, It's marked as being a year earlier that the latter version. Hope this URL doesn't wrap. http://www.FreeBSD.org/cgi/cvsweb.cgi/src/sys/ufs/mfs/Attic/mfs_vfsops.c.diff?r1=1.82&r2=1.81.2.1&f=h Tor.Egge@fast.no Sent by: owner-freebsd-stable@FreeBSD.ORG 07/02/2001 04:55 PM To: ohartman@klima.physik.uni-mainz.de cc: freebsd-stable@FreeBSD.ORG Subject: Re: HELP! Server crashes since last cvsupdate! > Hello. > > Since our last update Friday, 29th June, both SMP machines run > into a "stuck" condition after a while. This happened now two times > and I do not know what happens. I updated one machine from a 22th June -stable kernel and immediately got a 'hang' at boot when starting sendmail. Breaking out to ddb showed the following backtrace. db> trace SMP_breakpoint(c44d4c00,c46d3200,0,c0273d5b,f0f60) at SMP_breakpoint+0x1e siointr1(c44d4c00,c03c3008,0,e6442f3c,c027258a) at siointr1+0x13d siointr(c44d4c00) at siointr+0x17 Xfastintr4(c46d3200,0,e6442f58,c01ac825,e6442f90) at Xfastintr4+0x2a vop_noislocked(e6442f90,e6442f9c,c01af24b,e6442f90,0) at vop_noislocked+0x19 vop_defaultop(e6442f90) at vop_defaultop+0x15 sched_sync(0) at sched_sync+0xaf fork_trampoline() at fork_trampoline+0x30 The machine hung in lockstatus (called from vop_noislocked) trying to obtain the interlock of what lockstatus believed to be a struct lock but wasn't. A suggested fix is enclosed. - Tor Egge Index: sys/ufs/mfs/mfs_vfsops.c =================================================================== RCS file: /home/ncvs/src/sys/ufs/mfs/Attic/mfs_vfsops.c,v retrieving revision 1.81.2.1 diff -u -2 -r1.81.2.1 mfs_vfsops.c --- sys/ufs/mfs/mfs_vfsops.c 2001/06/17 05:05:00 1.81.2.1 +++ sys/ufs/mfs/mfs_vfsops.c 2001/07/02 23:28:25 @@ -249,4 +249,5 @@ addaliasu(devvp, makeudev(253, mfs_minor++)); devvp->v_data = mfsp; + lockinit(&mfsp->mfs_lock, PVFS, "mfslck", 0, LK_NOPAUSE); mfsp->mfs_baseoff = args.base; mfsp->mfs_size = args.size; Index: sys/ufs/mfs/mfsnode.h =================================================================== RCS file: /home/ncvs/src/sys/ufs/mfs/Attic/mfsnode.h,v retrieving revision 1.12 diff -u -2 -r1.12 mfsnode.h --- sys/ufs/mfs/mfsnode.h 1999/08/28 00:52:26 1.12 +++ sys/ufs/mfs/mfsnode.h 2001/07/02 23:28:25 @@ -43,4 +43,5 @@ struct mfsnode { + struct lock mfs_lock; struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ caddr_t mfs_baseoff; /* base of file system in memory */ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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