Date: Mon, 14 May 2007 09:37:49 +0200 From: des@des.no (Dag-Erling =?utf-8?Q?Sm=C3=B8rgrav?=) To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: Ricardo Nabinger Sanchez <rnsanchez@wait4.org>, freebsd-current@freebsd.org Subject: Re: Process for requesting reverting patch? Message-ID: <86ps53x3ci.fsf@dwp.des.no> In-Reply-To: <20070514024316.GA197@troutmask.apl.washington.edu> (Steve Kargl's message of "Sun\, 13 May 2007 19\:43\:16 -0700") References: <20070513175425.GA64710@troutmask.apl.washington.edu> <864pmg1t1s.fsf@dwp.des.no> <20070513183009.GA96018@troutmask.apl.washington.edu> <86646wzfv0.fsf@dwp.des.no> <20070513192836.GA94258@troutmask.apl.washington.edu> <46478626.9060301@FreeBSD.org> <20070513230055.1dbd22f5.rnsanchez@wait4.org> <20070514020635.GA99892@troutmask.apl.washington.edu> <20070514022620.GA52887@nagual.pp.ru> <20070514024316.GA197@troutmask.apl.washington.edu>
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Steve Kargl <sgk@troutmask.apl.washington.edu> writes: > Read the entire thread. tcsh hangs when invoked from gdb with a > .cshrc that contains "tcsh hangs when invoked from gdb"? gdb uses ptrace(2), which breaks the process hierarchy - the debugged process is reparented to gdb. When the debugged process forks and gdb attaches to the child, the child will seem - from the parent's perspective - to disappear into thin air. This has never worked correctly in FreeBSD and is completely unrelated to tcsh, so you can get off mp@'s back already. Fixing it is hard. I've tried. It seems easy until you realize that you need to rewrite most of kern_wait(). DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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