Messages in this thread | | | Date | Fri, 10 May 2002 09:56:00 -0700 (PDT) | Subject | Re: mmap, SIGBUS, and handling it | From | "David S. Miller" <> |
| |
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> Date: Fri, 10 May 2002 19:03:19 +0200 (MET DST)
On Fri, 10 May 2002, David S. Miller wrote:
> If we reexecute the instruction it will take the signal endlessly, > forever. That makes no sense. It depends on an application. It certainly shouldn't be the default, but a user may choose such an option for some reason. E.g. for debugging a system with an ICE or a similar tool. He's talking about how SIG_IGN should behave.
If you want non-default behavior, specify a signal handler instead of SIG_IGN. > So my original point I was trying to make, which still stands, is that > what is being requested is totally rediculious behavior, trying to > ignore a page fault that can't be serviced. Why should we enforce policy on a user? If one wants to ignore such signals for whatever reason, let him do that. We don't specify any policy other than the behavior of SIG_IGN which is to kill off the process for SIGBUS.
If you specify a handler you can have SIGBUS do whatever you want it to. There are no enforced limitations, only a specified behavior for SIG_IGN when used for SIGBUS.
The original poster has solved his problem, yet you continue to argue one and on and on. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |