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From: "Dave Gilbert (Home)" <gilbertd@treblig.org>
To: "David S. Miller" <davem@redhat.com>
Cc: dizzy@roedu.net, linux-kernel@vger.kernel.org
Subject: Re: mmap, SIGBUS, and handling it
Date: Fri, 10 May 2002 16:56:03 +0100	[thread overview]
Message-ID: <3CDBED93.3040508@treblig.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0205101832080.9661-100000@ahriman.bucharest.roedu.net> <20020510.083050.55863714.davem@redhat.com>

David S. Miller wrote:
>    From: Mihai RUSU <dizzy@roedu.net>
>    Date: Fri, 10 May 2002 18:37:21 +0300 (EEST)
>    
>    PS: why signal(SIGBUS,SIG_IGN) doesnt work, but a user handler its called
>    if set with signal(SIGBUS,handle_sigbus) ?
> 
> How would you like the kernel to "ignore" a page fault that cannot be
> serviced?

Well imagining you really wanted to do it you could skip a store 
instruction or put a dummy value in the register that something is being 
loaded into.

Dave


  parent reply	other threads:[~2002-05-10 15:53 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-10 15:37 Mihai RUSU
2002-05-10 15:30 ` David S. Miller
2002-05-10 15:53   ` Maciej W. Rozycki
2002-05-10 15:47     ` David S. Miller
2002-05-10 17:03       ` Maciej W. Rozycki
2002-05-10 16:56         ` David S. Miller
2002-05-10 19:54           ` Maciej W. Rozycki
2002-05-10 15:56   ` Dave Gilbert (Home) [this message]
2002-05-10 15:48     ` David S. Miller
2002-05-10 16:04   ` Mihai RUSU
2002-05-11 13:27     ` Alex Riesen
2002-05-10 16:27 ` Alan Cox
2002-05-10 16:40   ` Mihai RUSU

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