Date: Mon, 5 Aug 2013 11:32:18 GMT From: Dominik Ernst <de@dernst.org> To: freebsd-gnats-submit@FreeBSD.org Subject: ports/181049: lang/ghc: possible regression Message-ID: <201308051132.r75BWIGx070404@oldred.freebsd.org> Resent-Message-ID: <201308051140.r75Be0uT045069@freefall.freebsd.org>
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>Number: 181049 >Category: ports >Synopsis: lang/ghc: possible regression >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-ports-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Aug 05 11:40:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Dominik Ernst >Release: 9.1-RELEASE >Organization: >Environment: FreeBSD traal.dernst.org 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: xmonad's spawn function seems to launch applications only in about 50% of cases. Usually this seems to affect X applications. This bug seems to occur with ghc 7.6.3 but not with ghc 7.4.2_1. For both ghc versions I tested it with xmonad 0.11 install from ports or hackage and the error occurs only with ghc 7.6.3. There are a few workarounds, for example using the definition of spawn from xmonad 0.8 seems to solve this issue. dezzy from IRC suggested using spawn' s = spawn $ "exe=`" ++ s ++ "` && eval \"exec $exe\"" Another observation I made with the command spawn "date >> $HOME/bla; urxvt" is that the output for date is written to `bla' every time, while the terminal (urxvt) does not always start properly. Also ghc 7.6.3 and xmonad 0.11 on debian linux (sorry I have to use that at work) does not have similar issues. This caused us to believe there might be a bug in FreeBSD's ghc. I would suspect one could identify the problematic function by comparing the definition of spawn from xmonad 0.8 and xmonad 0.11. >How-To-Repeat: Install ghc 7.6.3 from ports and xmonad 0.11 from ports or hackage. Then try opening a number of terminal windows (Mod-Shift-Enter) and see that a terminal is not always started after using that key combination. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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