From: Ralf Baechle <ralf@linux-mips.org>
To: Yashwant Shitoot <yshitoot@stellartec.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Strange Behavior - help
Date: Thu, 6 May 2004 19:33:41 +0200 [thread overview]
Message-ID: <20040506173341.GA23488@linux-mips.org> (raw)
In-Reply-To: <7F5F67B895426C40AC75B8290421C23915CE57@Exchange.stellartec.com>
On Thu, May 06, 2004 at 10:19:43AM -0700, Yashwant Shitoot wrote:
> Hello Friends,
Allright, dinner on you ;-)
> My root file system and linux is in rom (flash). The linux itself runs
> out of ram. When I reprogram the rom, I erase and write a new image of
> the rom from a compact flash card. After the new image is programmed in
> the function fclose() hangs up, implying that fclose() is rom resident
> and loaded as needed. Does this make sense ?
Demand loading that is the binary will be paged in from backing store
(which is your ROM) as needed.
> Remember even after erasing the rom fopen() works fine.
Linux may at any time deciede to discard a page of memory. It does so
when it think it has a better use for that memory.
Rewriting the underlying device of any filesystem is not a safe thing to
do. A possible safe approach would be running from a ramdisk, for example.
Ralf
prev parent reply other threads:[~2004-05-06 17:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-06 17:19 Strange Behavior - help Yashwant Shitoot
2004-05-06 17:19 ` Yashwant Shitoot
2004-05-06 17:33 ` Ralf Baechle [this message]
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