Date: Mon, 9 May 2011 20:12:46 +0100 From: Chris Rees <utisoft@gmail.com> To: Eitan Adler <lists@eitanadler.com>, utisoft@gmail.com, Maxim Konovalov <maxim.konovalov@gmail.com>, Oliver Fromme <olli@lurza.secnetix.de>, FreeBSD Standards <freebsd-standards@freebsd.org> Subject: Re: dd dies on SIGUSR1 Message-ID: <BANLkTinZiFWLe-Xj=Y9Awe2SM9R_d7%2BToQ@mail.gmail.com> In-Reply-To: <20110325033736.GA64512@zim.MIT.EDU> References: <AANLkTikoZNpmM83%2BU-0AWhO43K67gKNq1dZ4UnL2UAPo@mail.gmail.com> <201103221457.p2MEvJub035858@lurza.secnetix.de> <AANLkTinzhKi-sfW-kz9W6EkA0WtB5-nO0gpyCLRyyHCn@mail.gmail.com> <20110322181604.GA47588@zim.MIT.EDU> <AANLkTi=PE6beTB1wmC8v41PqAWWSqq%2B6z-Be44uePYtZ@mail.gmail.com> <alpine.BSF.2.00.1103222136510.17256@qvfongpu.qngnvk.ybpny> <AANLkTikhgk3YRuFoGjBf725b%2B421qDXCWBMSn3PrA5t5@mail.gmail.com> <AANLkTimya2k%2B9mNzFnVCL1jjqj%2BQ9xDBYO2VO5d-AQyY@mail.gmail.com> <20110325033736.GA64512@zim.MIT.EDU>
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On 25 March 2011 03:37, David Schultz <das@freebsd.org> wrote: > On Wed, Mar 23, 2011, Eitan Adler wrote: >> > We are talking about a design decision taken decades ago, which quite >> > possibly was a mistake. >> >> Historical reasons are not be discounted, but in this case because the >> behavior is already non-portable, and already not be relied upon, so >> there is no reason that changing the default is harmful. >> >> > Again, how many people rely on USR1 to terminate a process? >> >> Hopefully none. Even if there are people who do rely on such behavior >> that reliance could be said to be a mistake or otherwise broken. > > Please see my previous message. =A0The historical behavior of SIGUSR1 > terminating a process by default is standard, even on Linux. > > I believe one of the original uses of the signal was to allow > daemons and their children to signal each other. =A0In this use > case, if the notification can't be delivered because the recipient > is unprepared to accept it, termination is appropriate for a > fail-fast design. Since the consensus seems to be for leaving as-is, perhaps someone could please close bin/155034? You can state that I've abandoned it! Chris
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