August 2015 - ghc-tickets

Re: [GHC] #7285: mkWeakMVar is non-compositional
by GHC 19 Aug '15

19 Aug '15

#7285: mkWeakMVar is non-compositional -------------------------------------+------------------------------------- Reporter: edsko | Owner: ekmett Type: feature request | Status: new Priority: normal | Milestone: 7.12.1 Component: Core Libraries | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by thomie): The libraries proposal mentioned in comment:7: https://mail.haskell.org/pipermail/libraries/2014-November/024143.html -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7285#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1851: "make install-strip" should work
by GHC 19 Aug '15

19 Aug '15

#1851: "make install-strip" should work -------------------------------------+------------------------------------- Reporter: igloo | Owner: thomie Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Build System | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC | Unknown/Multiple failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * owner: => thomie -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1851#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9381: Implement rdynamic
by GHC 18 Aug '15

18 Aug '15

#9381: Implement rdynamic -------------------------------------+------------------------------------- Reporter: facundo.dominguez | Owner: Type: feature request | facundo.dominguez Priority: normal | Status: new Component: Compiler | Milestone: Keywords: | Version: 7.8.2 Architecture: Unknown/Multiple | Operating System: Difficulty: Unknown | Unknown/Multiple Blocked By: | Type of failure: Related Tickets: 7015 | None/Unknown | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Currently ghc ignores the `-rdynamic` flag. With a small effort it can be used as a synonym of `-optl -rdynamic` in linux and `-optl -export-all-symbols` in windows/mingw32. In other platforms, similar translations must be possible to get the symbols of an executable exported. This feature would improve usability of an upcoming implementation of #7015. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9381> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6037: Compile-time crash with sources with non-representable unicode characters
by GHC 18 Aug '15

18 Aug '15

#6037: Compile-time crash with sources with non-representable unicode characters -------------------------------------+------------------------------------- Reporter: akio | Owner: snoyberg Type: bug | Status: merge Priority: normal | Milestone: 7.10.3 Component: Compiler | Version: 7.4.1 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: T6037 Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by bgamari): * status: new => merge * milestone: 7.12.1 => 7.10.3 Comment: Seems like this should go into a potential 7.10.3 if one happens. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6037#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6037: Compile-time crash with sources with non-representable unicode characters
by GHC 18 Aug '15

18 Aug '15

#6037: Compile-time crash with sources with non-representable unicode characters -------------------------------------+------------------------------------- Reporter: akio | Owner: snoyberg Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.4.1 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: T6037 Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Ben Gamari <bgamari.foss@…>): In [changeset:"22aca5368864070bbed3b44dca3ce57e243bf415/ghc" 22aca536/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="22aca5368864070bbed3b44dca3ce57e243bf415" Transliterate unknown characters at output This avoids the compiler from crashing when, for example, a warning contains a non-Latin identifier and the LANG variable is set to C. Fixes #6037. Test Plan: Create a Haskell source file containing an identifier with non-Latin characters and no type signature. Compile with `LANG=C ghc -Wall foo.hs`, and it should fail. With this patch, it will succeed. Reviewers: austin, rwbarton, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1153 GHC Trac Issues: #6037, #10762 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6037#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #10: undefined reference to `Main_main_closur
by GHC 17 Aug '15

17 Aug '15

#10: undefined reference to `Main_main_closur -----------------------+-------------------- Reporter: nobody | Owner: nobody Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 5.02 Resolution: Invalid | Keywords: -----------------------+-------------------- Comment (by Sergei Trofimovich <siarheit@…>): In [changeset:"74897dece3ea92139b552bd711903ce630956df3/ghc" 74897dec/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="74897dece3ea92139b552bd711903ce630956df3" Make rts/ThreadLabels.c threadsafe for debug runtime. rts/ThreadLabels.c has a global hashtable for each running haskell thread. It's not synchronized across OS threads. Was discovered when ran -debug build of ghc itself as: $ ghc-stage2 -j8 +RTS -A256M -l and glibc detected double-free corruption: #2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fe0bcebf368 "*** Error in `%s': %s: 0x%s ***\n") #3 in malloc_printerr (action=3, str=0x7fe0bcebf4c0 "double free or corruption (fasttop)", ptr=<optimized out>) #4 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) #5 in stgFree (p=0x7fe060001820) at rts/RtsUtils.c:108 #6 in freeHashTable (table=0x5929320, freeDataFun=0x36374df <stgFree>) at rts/Hash.c:360 #7 in freeThreadLabelTable () at rts/ThreadLabels.c:37 #8 in hs_exit_ (wait_foreign=rtsFalse) at rts/RtsStartup.c:403 #9 in shutdownHaskellAndExit (n=0, fastExit=0) at rts/RtsStartup.c:481 #10 in hs_main (...) at rts/RtsMain.c:91 #11 in main (...) at ghc/hschooks.c:63 Exposed itself after commit: > commit f6866824ce5cdf5359f0cad78c49d65f6d43af12 > Author: Sergei Trofimovich <slyfox(a)gentoo.org> > Date: Mon Aug 4 08:10:33 2014 -0500 > > ghc --make: add nicer names to RTS threads (threaded IO manager, make workers) Signed-off-by: Sergei Trofimovich <siarheit(a)google.com> Reviewers: austin, simonmar, ezyang, bgamari Reviewed By: ezyang, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1146 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #11: No error from --make -o out when no main
by GHC 17 Aug '15

17 Aug '15

#11: No error from --make -o out when no main ---------------------+---------------------- Reporter: rrt | Owner: simonmar Type: bug | Status: closed Priority: normal | Milestone: Component: None | Version: None Resolution: Fixed | Keywords: ---------------------+---------------------- Comment (by Sergei Trofimovich <siarheit@…>): In [changeset:"74897dece3ea92139b552bd711903ce630956df3/ghc" 74897dec/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="74897dece3ea92139b552bd711903ce630956df3" Make rts/ThreadLabels.c threadsafe for debug runtime. rts/ThreadLabels.c has a global hashtable for each running haskell thread. It's not synchronized across OS threads. Was discovered when ran -debug build of ghc itself as: $ ghc-stage2 -j8 +RTS -A256M -l and glibc detected double-free corruption: #2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fe0bcebf368 "*** Error in `%s': %s: 0x%s ***\n") #3 in malloc_printerr (action=3, str=0x7fe0bcebf4c0 "double free or corruption (fasttop)", ptr=<optimized out>) #4 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) #5 in stgFree (p=0x7fe060001820) at rts/RtsUtils.c:108 #6 in freeHashTable (table=0x5929320, freeDataFun=0x36374df <stgFree>) at rts/Hash.c:360 #7 in freeThreadLabelTable () at rts/ThreadLabels.c:37 #8 in hs_exit_ (wait_foreign=rtsFalse) at rts/RtsStartup.c:403 #9 in shutdownHaskellAndExit (n=0, fastExit=0) at rts/RtsStartup.c:481 #10 in hs_main (...) at rts/RtsMain.c:91 #11 in main (...) at ghc/hschooks.c:63 Exposed itself after commit: > commit f6866824ce5cdf5359f0cad78c49d65f6d43af12 > Author: Sergei Trofimovich <slyfox(a)gentoo.org> > Date: Mon Aug 4 08:10:33 2014 -0500 > > ghc --make: add nicer names to RTS threads (threaded IO manager, make workers) Signed-off-by: Sergei Trofimovich <siarheit(a)google.com> Reviewers: austin, simonmar, ezyang, bgamari Reviewed By: ezyang, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1146 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2: rewrite rules, forall, no -fglasgow-exts
by GHC 17 Aug '15

17 Aug '15

#2: rewrite rules, forall, no -fglasgow-exts --------------------------------+---------------------- Reporter: nobody | Owner: simonmar Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler (Parser) | Version: None Resolution: Fixed | Keywords: --------------------------------+---------------------- Comment (by Sergei Trofimovich <siarheit@…>): In [changeset:"74897dece3ea92139b552bd711903ce630956df3/ghc" 74897dec/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="74897dece3ea92139b552bd711903ce630956df3" Make rts/ThreadLabels.c threadsafe for debug runtime. rts/ThreadLabels.c has a global hashtable for each running haskell thread. It's not synchronized across OS threads. Was discovered when ran -debug build of ghc itself as: $ ghc-stage2 -j8 +RTS -A256M -l and glibc detected double-free corruption: #2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fe0bcebf368 "*** Error in `%s': %s: 0x%s ***\n") #3 in malloc_printerr (action=3, str=0x7fe0bcebf4c0 "double free or corruption (fasttop)", ptr=<optimized out>) #4 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) #5 in stgFree (p=0x7fe060001820) at rts/RtsUtils.c:108 #6 in freeHashTable (table=0x5929320, freeDataFun=0x36374df <stgFree>) at rts/Hash.c:360 #7 in freeThreadLabelTable () at rts/ThreadLabels.c:37 #8 in hs_exit_ (wait_foreign=rtsFalse) at rts/RtsStartup.c:403 #9 in shutdownHaskellAndExit (n=0, fastExit=0) at rts/RtsStartup.c:481 #10 in hs_main (...) at rts/RtsMain.c:91 #11 in main (...) at ghc/hschooks.c:63 Exposed itself after commit: > commit f6866824ce5cdf5359f0cad78c49d65f6d43af12 > Author: Sergei Trofimovich <slyfox(a)gentoo.org> > Date: Mon Aug 4 08:10:33 2014 -0500 > > ghc --make: add nicer names to RTS threads (threaded IO manager, make workers) Signed-off-by: Sergei Trofimovich <siarheit(a)google.com> Reviewers: austin, simonmar, ezyang, bgamari Reviewed By: ezyang, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1146 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #3: DiffArray should be instance of Show
by GHC 17 Aug '15

17 Aug '15

#3: DiffArray should be instance of Show --------------------------+-------------------- Reporter: magunter | Owner: nobody Type: bug | Status: closed Priority: normal | Milestone: Component: hslibs/lang | Version: 5.0 Resolution: Fixed | Keywords: --------------------------+-------------------- Comment (by Sergei Trofimovich <siarheit@…>): In [changeset:"74897dece3ea92139b552bd711903ce630956df3/ghc" 74897dec/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="74897dece3ea92139b552bd711903ce630956df3" Make rts/ThreadLabels.c threadsafe for debug runtime. rts/ThreadLabels.c has a global hashtable for each running haskell thread. It's not synchronized across OS threads. Was discovered when ran -debug build of ghc itself as: $ ghc-stage2 -j8 +RTS -A256M -l and glibc detected double-free corruption: #2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fe0bcebf368 "*** Error in `%s': %s: 0x%s ***\n") #3 in malloc_printerr (action=3, str=0x7fe0bcebf4c0 "double free or corruption (fasttop)", ptr=<optimized out>) #4 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) #5 in stgFree (p=0x7fe060001820) at rts/RtsUtils.c:108 #6 in freeHashTable (table=0x5929320, freeDataFun=0x36374df <stgFree>) at rts/Hash.c:360 #7 in freeThreadLabelTable () at rts/ThreadLabels.c:37 #8 in hs_exit_ (wait_foreign=rtsFalse) at rts/RtsStartup.c:403 #9 in shutdownHaskellAndExit (n=0, fastExit=0) at rts/RtsStartup.c:481 #10 in hs_main (...) at rts/RtsMain.c:91 #11 in main (...) at ghc/hschooks.c:63 Exposed itself after commit: > commit f6866824ce5cdf5359f0cad78c49d65f6d43af12 > Author: Sergei Trofimovich <slyfox(a)gentoo.org> > Date: Mon Aug 4 08:10:33 2014 -0500 > > ghc --make: add nicer names to RTS threads (threaded IO manager, make workers) Signed-off-by: Sergei Trofimovich <siarheit(a)google.com> Reviewers: austin, simonmar, ezyang, bgamari Reviewed By: ezyang, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1146 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4: -fext-core -fno-core behaves funny
by GHC 17 Aug '15

17 Aug '15

#4: -fext-core -fno-core behaves funny ---------------------+-------------------- Reporter: josefs | Owner: nobody Type: bug | Status: closed Priority: normal | Milestone: Component: Driver | Version: None Resolution: Fixed | Keywords: ---------------------+-------------------- Comment (by Sergei Trofimovich <siarheit@…>): In [changeset:"74897dece3ea92139b552bd711903ce630956df3/ghc" 74897dec/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="74897dece3ea92139b552bd711903ce630956df3" Make rts/ThreadLabels.c threadsafe for debug runtime. rts/ThreadLabels.c has a global hashtable for each running haskell thread. It's not synchronized across OS threads. Was discovered when ran -debug build of ghc itself as: $ ghc-stage2 -j8 +RTS -A256M -l and glibc detected double-free corruption: #2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fe0bcebf368 "*** Error in `%s': %s: 0x%s ***\n") #3 in malloc_printerr (action=3, str=0x7fe0bcebf4c0 "double free or corruption (fasttop)", ptr=<optimized out>) #4 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) #5 in stgFree (p=0x7fe060001820) at rts/RtsUtils.c:108 #6 in freeHashTable (table=0x5929320, freeDataFun=0x36374df <stgFree>) at rts/Hash.c:360 #7 in freeThreadLabelTable () at rts/ThreadLabels.c:37 #8 in hs_exit_ (wait_foreign=rtsFalse) at rts/RtsStartup.c:403 #9 in shutdownHaskellAndExit (n=0, fastExit=0) at rts/RtsStartup.c:481 #10 in hs_main (...) at rts/RtsMain.c:91 #11 in main (...) at ghc/hschooks.c:63 Exposed itself after commit: > commit f6866824ce5cdf5359f0cad78c49d65f6d43af12 > Author: Sergei Trofimovich <slyfox(a)gentoo.org> > Date: Mon Aug 4 08:10:33 2014 -0500 > > ghc --make: add nicer names to RTS threads (threaded IO manager, make workers) Signed-off-by: Sergei Trofimovich <siarheit(a)google.com> Reviewers: austin, simonmar, ezyang, bgamari Reviewed By: ezyang, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1146 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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