Date: Fri, 19 Sep 2008 07:11:05 -0700 From: Jason Evans <jasone@FreeBSD.org> To: Stephen Montgomery-Smith <stephen@math.missouri.edu> Cc: freebsd-hackers@freebsd.org, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Calling malloc from a signal handler Message-ID: <48D3B2F9.7020900@FreeBSD.org> In-Reply-To: <48D3AE8D.50304@math.missouri.edu>
index | next in thread | previous in thread | raw e-mail
Stephen Montgomery-Smith wrote: > I notice that if you use "malloc" from within a signal handler on > FreeBSD-6.x, that you can potentially trigger a "recursive call" error. > > But this seems to have changed in FreeBSD-7.x. The malloc implementation is completely new in FreeBSD 7, so not all of the internal error checking code is the same. > Is it now permissible to call "malloc" from within a signal handler in > FreeBSD-7.x? Calling malloc from within a signal handler can cause application deadlock, so although you won't see an error message printed, you are unlikely to be happy with the results. Jasonhome | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?48D3B2F9.7020900>