Date: Sun, 12 May 2002 23:12:18 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: current@FreeBSD.ORG Subject: Re: Keywords: pre-GCC3 tcsh coredump free/malloc reentrancy signal Message-ID: <3CDF5942.7E9BF47E@mindspring.com> References: <20020512212236.GB20876@dhcp01.pn.xcllnt.net> <3858.1021238862@critter.freebsd.dk> <20020512222048.GB21019@dhcp01.pn.xcllnt.net>
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Marcel Moolenaar wrote: > On Sun, May 12, 2002 at 11:27:42PM +0200, Poul-Henning Kamp wrote: > > It is not legal to recursively call malloc/free/realloc, and therefore > > you should either protect all calls to malloc/free/realloc by blocking > > signals or better: not call them in signal handlers. > > Ok, thanks. I guess we have a genuine tcsh(1) bug here. > > Who's maintaining tcsh? Can he/she suggest what to do or otherwise > take it from here? The Single UNIX Specification Standard and POSIX both explicitly state that it is not safe to call memory management functions from signal handlers. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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