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From: "H. Peter Anvin" <hpa@zytor.com>
To: David Schwartz <davids@webmaster.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Dumb question: Why are exceptions such as SIGSEGV not logged
Date: Tue, 19 Aug 2003 12:34:56 -0700	[thread overview]
Message-ID: <3F427BE0.2040306@zytor.com> (raw)
In-Reply-To: <MDEHLPKNGKAHNMBLJOLKIEMNFDAA.davids@webmaster.com>

David Schwartz wrote:
>>>	There is no mechanism that is guaranteed to terminate a
>>>process other than
>>>sending yourself an exception that is not caught. So in cases
>>>where you must
>>>guarantee that your process terminates, it is perfectly
>>>reasonable to send
>>>yourself a SIGILL.
> 
> 
>>exit(2)?
> 
> 
> 	And what if a registered 'atexit' function needs to acquire a mutex that is
> held by a thread that's in an endless loop? What if a standard I/O stream
> has buffered data for a local disk that failed? I'm looking for a mechanism
> that is guaranteed to terminate a process immediately.
> 

Correction...

_exit(2).

There is no exit(2); I was talking about _exit(2) and you're talking
about exit(3).

_exit(2) *is* guaranteed to terminate a process immediately.

	-hpa


  reply	other threads:[~2003-08-19 19:38 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-16 20:10 Dumb question: Why are exceptions such as SIGSEGV not logged Michael Frank
2003-08-16 20:49 ` Valdis.Kletnieks
2003-08-16 21:42   ` Jamie Lokier
2003-08-16 23:06   ` David D. Hagood
2003-08-16 23:17     ` Doug McNaught
2003-08-16 23:41       ` Dr. David Alan Gilbert
2003-08-17  8:17         ` Russell King
2003-08-16 23:49     ` Alan Cox
2003-08-17 20:54     ` Jakob Oestergaard
2003-08-18  4:28       ` Michael Frank
2003-08-18  9:15     ` David Schwartz
2003-08-19  2:43       ` H. Peter Anvin
2003-08-19 13:27         ` Jesse Pollard
2003-08-19 19:28         ` David Schwartz
2003-08-19 19:34           ` H. Peter Anvin [this message]
2003-08-19 20:01             ` David Schwartz
2003-08-18 14:31 ` William Lee Irwin III
2003-08-18 17:52   ` Michael Frank
     [not found] <lg0i.6yo.11@gated-at.bofh.it>
     [not found] ` <lgjJ.6Oo.5@gated-at.bofh.it>
     [not found]   ` <lilr.p2.7@gated-at.bofh.it>
     [not found]     ` <livc.wX.17@gated-at.bofh.it>
2003-08-17 12:43       ` Ihar 'Philips' Filipau
     [not found]     ` <lj7O.14a.1@gated-at.bofh.it>
2003-08-17 12:52       ` Ihar 'Philips' Filipau
2003-08-17 13:09         ` Alan Cox
     [not found]     ` <lOll.3Jp.19@gated-at.bofh.it>
2003-08-18  9:34       ` Ihar 'Philips' Filipau
2003-08-18 17:26         ` David Schwartz
     [not found] <lv8Y.2XU.9@gated-at.bofh.it>
     [not found] ` <lv8Y.2XU.11@gated-at.bofh.it>
     [not found]   ` <lv8Y.2XU.13@gated-at.bofh.it>
     [not found]     ` <lviD.35d.3@gated-at.bofh.it>
     [not found]       ` <lviD.35d.1@gated-at.bofh.it>
     [not found]         ` <lvC1.3p9.11@gated-at.bofh.it>
2003-08-17 14:29           ` Ihar 'Philips' Filipau
  -- strict thread matches above, loose matches on Subject: below --
2003-08-18  1:56 Hank Leininger
2003-08-18 20:50 Hank Leininger
2003-08-18 21:02 ` Mike Fedyk
2003-08-18 21:18   ` Hank Leininger
2003-08-18 21:25     ` Mike Fedyk
2003-08-18 22:12   ` William Lee Irwin III
2003-08-18 22:39   ` David Schwartz
2003-08-18 22:44     ` Mike Fedyk
2003-08-18 22:53       ` David Schwartz
2003-08-19  6:54     ` Denis Vlasenko
2003-08-19 14:52       ` Valdis.Kletnieks
2003-08-19 18:51       ` David Schwartz

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