Date: Wed, 28 Jul 2004 13:28:33 -0500 From: Alan Cox <alc@cs.rice.edu> To: Alan Cox <alc@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_object.c Message-ID: <20040728182833.GC18577@cs.rice.edu> In-Reply-To: <200407281823.i6SIN8pQ006108@repoman.freebsd.org> References: <200407281823.i6SIN8pQ006108@repoman.freebsd.org>
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I would appreciate it if someone would volunteer to back port these changes to -STABLE. Regards, Alan On Wed, Jul 28, 2004 at 06:23:08PM +0000, Alan Cox wrote: > alc 2004-07-28 18:23:08 UTC > > FreeBSD src repository > > Modified files: > sys/vm vm_object.c > Log: > Correct a very old error in both vm_object_madvise() (originating in > vm/vm_object.c revision 1.88) and vm_object_sync() (originating in > vm/vm_map.c revision 1.36): When descending a chain of backing objects, > both use the wrong object's backing offset. Consequently, both may > operate on the wrong pages. > > Quoting Matt, "This could be responsible for all of the sporatic madvise > oddness that has been reported over the years." > > Reviewed by: Matt Dillon > > Revision Changes Path > 1.329 +2 -2 src/sys/vm/vm_object.c
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