Date: Fri, 26 Feb 2010 07:33:29 -0600 From: Peter Steele <psteele@maxiscale.com> To: Kostik Belousov <kostikbel@gmail.com> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, "freebsd-python@freebsd.org" <freebsd-python@freebsd.org> Subject: RE: ntpd hangs under FBSD 8 Message-ID: <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95A7A@MBX03.exg5.exghost.com> In-Reply-To: <20100226112336.GF2489@deviant.kiev.zoral.com.ua> References: <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95389@MBX03.exg5.exghost.com> <20100224190035.GA5026@wep4035.physik.uni-wuerzburg.de> <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95522@MBX03.exg5.exghost.com> <20100225125838.13cd6c0e.ray@dlink.ua> <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95689@MBX03.exg5.exghost.com> <20100225151828.GA2489@deviant.kiev.zoral.com.ua> <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95703@MBX03.exg5.exghost.com> <20100225164514.GB2489@deviant.kiev.zoral.com.ua> <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95765@MBX03.exg5.exghost.com> <7B9397B189EB6E46A5EE7B4C8A4BB7CB39E95991@MBX03.exg5.exghost.com> <20100226112336.GF2489@deviant.kiev.zoral.com.ua>
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>So this is arguably a Python bug. Did you contacted anybody who cares abou= t the Python ? I did not, mainly because this link: http://bugs.python.org/msg61870 seems to imply they are already aware of the problem. I agree it must be a = Python bug though. It worked in 2.5.1 but not in 2.5.5 and later, so clearl= y they changed how processes are launched from threads that has led to this= problem. One should not have to be forced to make explicit calls to change= the signal mask in order to launch an external app. Granted, we've only ha= d this issue with ntpd--other apps launch fine--but there is clearly someth= ing wrong somewhere for even one app to hang when it is spawned as a thread= .
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