Date: Sun, 23 Oct 2011 07:47:59 +0100 From: Chris Rees <crees@freebsd.org> To: Stefan Bethke <stb@lassitu.de> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>, Mikolaj Golub <to.my.trociny@gmail.com>, Jilles Tjoelker <jilles@stack.nl> Subject: Re: /usr/bin/script eating 100% cpu with portupgrade and xargs Message-ID: <CADLo838wJoG-RbnoUDoypES_6uzjjLfcO=A1AoTjWxYZrPxFMg@mail.gmail.com> In-Reply-To: <08C7028B-10E1-4855-B007-D2257216F077@lassitu.de> References: <op.v1y8gdtf8527sy@pinky> <20110918045413.GA63773@DataIX.net> <20110918053901.GA31617@icarus.home.lan> <op.v1zrszht8527sy@pinky> <86d3eydsmf.fsf@kopusha.home.net> <CAOnPXZ9z2MoZ7uxyUQzBx3Lz1mhY-2JKxO0mepzMp81J4WEVtw@mail.gmail.com> <20111008002707.GA76128@swelter.hanley.stade.co.uk> <20111012222535.GB79291@swelter.hanley.stade.co.uk> <20111014120336.GB31718@stack.nl> <08C7028B-10E1-4855-B007-D2257216F077@lassitu.de>
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On 14 Oct 2011 21:50, "Stefan Bethke" <stb@lassitu.de> wrote: > > > Am 14.10.2011 um 14:03 schrieb Jilles Tjoelker: > > > On Wed, Oct 12, 2011 at 11:25:35PM +0100, Adrian Wontroba wrote: > >> On Sat, Oct 08, 2011 at 01:27:07AM +0100, Adrian Wontroba wrote: > >>> I won't be in a position to create a simpler test case, raise a PR or > >>> try patches till Tuesday evening (UK) at the earliest. > > > >> So far I have been unable to reproduce the problem with portupgrade (and > >> will probably move to portmaster). > > > >> I have however found a different but possibly related problem with the > >> new version of script in RELENG_8, for which I have raised this PR: > > > >> misc/161526: script outputs corrupt if input is not from a terminal > > > >> Blast, should of course been bin/ > > > > The extra ^D\b\b are the EOF character being echoed. These EOF > > characters are being generated by the new script(1) to pass through the > > EOF condition on stdin. > > > > One fix would be to change the termios settings temporarily to disable > > the echoing but this may cause problems if the application is changing > > termios settings concurrently and generally feels bad. > > > > It may be best to remove writing EOF characters, perhaps adding an > > option to enable it again if there is a concrete use case for it. > > I finally figured out why my ports aren't updating anymore: when running portupgrade -a --batch from cron, stdin is /dev/null, and that produces the gobs of ^D in the output, as well as the script file that portupgrade creates. What's worse is that the upgrade never completes. > Worst of all, you're running portupgrade from cron without reading UPDATING, which is just asking for trouble. Chris
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