Date: Sat, 16 Oct 1999 22:32:40 -0600 From: Wes Peters <wes@softweyr.com> To: Kevin Day <toasty@dragondata.com> Cc: Mark Newton <newton@internode.com.au>, Dodge Ram <gupz@hotmail.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: Handling segV's Message-ID: <38095168.FE3F1535@softweyr.com> References: <199910160457.XAA21178@celery.dragondata.com>
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Kevin Day wrote:
>
> I mmap() files in, then copy them to a device. This works great except when
> someone tries to change that file during the copy. If the size of the file
> shrinks, I'll SIGBUS or SIGSEGV when i try to touch past the new file size.
> So, i setup a signal handler and longjmp into some recovery code.
>
> Perhaps there's a better way, but I don't consider this a bug really, and
> i'll get a SEGV. :)
MAP_PRIVATE?
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
wes@softweyr.com http://softweyr.com/
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