Date: Sat, 25 Jul 1998 18:20:19 -0400 (EDT) From: Brian Feldman <green@zone.baldcom.net> To: IBS / Andre Oppermann <andre@pipeline.ch> Cc: Karl Denninger <karl@mcs.net>, current@FreeBSD.ORG Subject: Re: MMAP problems Message-ID: <Pine.BSF.4.00.9807251817390.6651-100000@zone.baldcom.net> In-Reply-To: <35BA4F9A.3E28B29E@pipeline.ch>
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Hmm, what is the default behavior of msync()? Is it handled automatically, say, in-kernel? If so, maybe it needs to be explicitly called; also is this daemon using a drive with async/softupdates by any chance? Cheers, Brian Feldman green@unixhelp.org On Sat, 25 Jul 1998, IBS / Andre Oppermann wrote: > Karl Denninger wrote: > > > > Hi folks, > > > > I believe I have found a rather serious MMAP problem in -CURRENT. > > > > Diablo (the news system) is the test case; with MMAP enabled it will randomly > > write exactly one block (512 bytes) of zeros into the article spool files > > rather than the proper data - its almost like an update via MMAP isn't > > actually happening when it should, and is being thrown away. This shows > > up as a corrupted batch when you try to transmit to others. > > > > I'm working on trying to isolate this, and will have more when I know > > better what is going on. > > Terry mentioned something like this some time ago, he looked a little > bit more into it and said it is also broken on -stable. > You might check the archives. > > -- > Andre Oppermann > > CEO / Geschaeftsfuehrer > Internet Business Solutions Ltd. (AG) > Hardstrasse 235, 8005 Zurich, Switzerland > Fon +41 1 277 75 75 / Fax +41 1 277 75 77 > http://www.pipeline.ch ibs@pipeline.ch > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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