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From: "Jeff C," <nolongersafeto@userealemailsniff.com>
Subject: Re: [OT] Spirit - Software failure
Date: Tue, 27 Jan 2004 12:30:27 GMT
Date: 2004-01-27T12:30:27+00:00	[thread overview]
Message-ID: <DRsRb.161689$I06.1619434@attbi_s01> (raw)
In-Reply-To: slrnc1cjui.4k7.randhol+valid_for_reply_from_news@k-083152.nt.ntnu.no


"Preben Randhol" <randhol+valid_for_reply_from_news@pvv.org> wrote in
message >
> I don't understand this. Did they think they could take pictures forever
> and the 256 Mb wouldn't be used up or there is a memory leake in the
> software so that when they now take pictures (perhaps with new
> instruments?) there isn't enough room to store the large pictures?
>

I still have yet to see an article that REALY explains what the failure more
here is. People
keep assuming that they know the real details based on these high level
summaries by trying
to apply the little information we get to their own real-world experience or
biases.

If I put on that same hat, I would GUESS that what is happening here is that
they are using the
DosFS component of vxWorks which keeps (at least in prior versions) all of
the FAT tables in RAM and that
while there is still flash space left, the sheer number of files is causing
the RAM allocated to the FAT table
to be used up.

Do I have any facts to back this up....No..I have seen similar problems with
vxWorks filesystems but making
determinations based on half truths is as naive as people that think that
the Arraine 5 blew up because
Ada exceptions are bad.






  reply	other threads:[~2004-01-27 12:30 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-26 10:15 [OT] Spirit - Software failure Jano
2004-01-26 10:42 ` Preben Randhol
2004-01-26 13:26   ` Larry Kilgallen
2004-01-26 13:57     ` Ludovic Brenta
2004-01-26 14:15       ` Preben Randhol
2004-01-26 23:17         ` Hyman Rosen
2004-01-27  0:40           ` Alexandre E. Kopilovitch
2004-01-26 14:13     ` fdebruin
2004-01-26 23:46       ` Robert A Duff
2004-01-27  4:24         ` Larry Kilgallen
2004-01-27  8:30           ` Stephen Leake
2004-01-27 10:59             ` Larry Kilgallen
2004-01-27 11:47             ` Preben Randhol
2004-01-27 12:30               ` Jeff C, [this message]
2004-01-27 12:41               ` Preben Randhol
2004-01-27 16:52                 ` Hyman Rosen
2004-01-27 17:01                   ` Preben Randhol
2004-01-27 13:53             ` Dmitry A. Kazakov
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