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Date:      Tue, 15 Apr 1997 11:16:33 -0700
From:      David Greenman <dg@root.com>
To:        John Polstra <jdp@polstra.com>
Cc:        hackers@freebsd.org
Subject:   Re: mmap vs. disk errors 
Message-ID:  <199704151816.LAA21651@root.com>
In-Reply-To: Your message of "Tue, 15 Apr 1997 09:51:15 PDT." <199704151651.JAA04914@austin.polstra.com> 

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>What happens if an application has a file mapped into memory and tries
>to access part of it, but the kernel can't bring the pages into memory
>because of a disk error (bad block in the file)?

   You get a vnode pager error and your application ends up with a SIGBUS.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project



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