April 2014 - ghc-tickets

[GHC] #8623: Strange slowness when using async library with FFI callbacks
by GHC 07 Nov '14

07 Nov '14

#8623: Strange slowness when using async library with FFI callbacks ------------------------------+-------------------------------------------- Reporter: | Owner: simonmar JohnWiegley | Status: new Type: bug | Milestone: 7.8.1 Priority: normal | Version: 7.6.3 Component: Runtime | Operating System: MacOS X System | Type of failure: Runtime performance bug Keywords: | Test Case: Architecture: | Blocking: Unknown/Multiple | Difficulty: Unknown | Blocked By: | Related Tickets: | ------------------------------+-------------------------------------------- I've attached a Haskell and a C file, when compiled as such: ghc -DSPEED_BUG=0 -threaded -O2 -main-is SpeedTest SpeedTest.hs SpeedTestC.c You should find that with 7.4.2, 7.6.3 or a recent build of 7.8, building with SPEED_BUG=0 produces an executable that takes more than a second to run, while building with SPEED_BUG=1 runs very quickly. I've also attached the Core for both scenarios. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8623> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8986: GHC panic while installing distributive library on Mac OS X Mavericks
by GHC 07 Nov '14

07 Nov '14

#8986: GHC panic while installing distributive library on Mac OS X Mavericks ------------------------------------+------------------------------------- Reporter: mvanier | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.1 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- While trying to install Snap from cabal, the install failed while installing the distributive-0.4.3.1 library. Specifically, I got this: > cabal install distributive Resolving dependencies... [1 of 1] Compiling Main ( /var/folders/76/d5y5v4wx7ybccp__l44r5cg00000gn/T/distributive-0.4.3.1-16721/distributive-0.4.3.1/Setup.lhs, /var/folders/76/d5y5v4wx7ybccp__l44r5cg00000gn/T/distributive-0.4.3.1-16721/distributive-0.4.3.1/dist/setup/Main.o ) Linking /var/folders/76/d5y5v4wx7ybccp__l44r5cg00000gn/T/distributive-0.4.3.1-16721/distributive-0.4.3.1/dist/setup/setup ... Configuring distributive-0.4.3.1... Building distributive-0.4.3.1... Preprocessing library distributive-0.4.3.1... [1 of 2] Compiling Data.Distributive.Generic ( src/Data/Distributive/Generic.hs, dist/build/Data/Distributive/Generic.o ) [2 of 2] Compiling Data.Distributive ( src/Data/Distributive.hs, dist/build/Data/Distributive.o ) Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Loading package transformers-0.3.0.0 ... linking ... done. Loading package transformers-compat-0.1.1.1 ... ghc: /Users/mvanier/Library/Haskell/ghc-7.6.3/lib/transformers- compat-0.1.1.1/lib/HStransformers-compat-0.1.1.1.o: Bad magic. Expected: feedfacf, got: feedface. ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-apple-darwin): loadObj "/Users/mvanier/Library/Haskell/ghc-7.6.3/lib /transformers-compat-0.1.1.1/lib/HStransformers-compat-0.1.1.1.o": failed Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug Failed to install distributive-0.4.3.1 cabal: Error: some packages failed to install: distributive-0.4.3.1 failed during the building phase. The exception was: ExitFailure 1 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8986> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8626: Bad magic. Expected: feedfacf, got: feedface
by GHC 07 Nov '14

07 Nov '14

#8626: Bad magic. Expected: feedfacf, got: feedface ----------------------------------+------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: high | Milestone: Component: GHCi | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: x86_64 (amd64) | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+------------------------------------- Loading package base-unicode-symbols-0.2.2.4 ... <interactive>: /Users/paulo/Library/Haskell/ghc-7.6.3/lib/base-unicode- symbols-0.2.2.4/lib/HSbase-unicode-symbols-0.2.2.4.o: Bad magic. Expected: feedfacf, got: feedface. ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-apple-darwin): loadObj "/Users/paulo/Library/Haskell/ghc-7.6.3/lib/base-unicode- symbols-0.2.2.4/lib/HSbase-unicode-symbols-0.2.2.4.o": failed Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8626> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9011: panic - interactiveUI:setBuffering2
by GHC 06 Nov '14

06 Nov '14

#9011: panic - interactiveUI:setBuffering2 ----------------------------------+------------------------------- Reporter: irneb | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Keywords: | Operating System: Linux Architecture: x86_64 (amd64) | Type of failure: GHCi crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+------------------------------- I've looked through some other tickets and tried installing libffi5, though in my distro (Kubuntu 13.10 x86-64) only libffi6 is available. Even after installing that I get the following: {{{ $ ghci GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): interactiveUI:setBuffering2 Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9011> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8482: Permission denied when copying file to current directory with copyFile
by GHC 03 Nov '14

03 Nov '14

#8482: Permission denied when copying file to current directory with copyFile -------------------------------------+------------------------------------- Reporter: Henk-Jan | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: | Version: 7.6.3 libraries/directory | Operating System: Windows Keywords: copyFile | Type of failure: Incorrect result permission denied | at runtime Architecture: x86 | Test Case: Difficulty: Unknown | Blocking: Blocked By: | Related Tickets: | -------------------------------------+------------------------------------- While the MS-DOS command {{{ C:\tmp\b>copy c:\tmp\a\x }}} runs successfully, the Haskell equivalent {{{ copyFile "c:\\tmp\\a\\x" "" }}} results in {{{ copyFile.hs: .\.copyFile584.tmp: copyFile: does not exist (Het systeem kan het opgegeven pad niet vinden.) }}} The Dutch explanation says: "The system can not find the specified path" {{{ copyFile "c:\\tmp\\a\\x" "." }}} results in {{{ copyFile.hs: .\.copyFile3960.tmp: copyFile: permission denied (Toegang geweigerd.) }}} The Dutch explanation says: "Access denied" -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8482> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8960: SpecConstr usage explodes beyond 4GB with GHC 7.8.1 rc 2
by GHC 03 Nov '14

03 Nov '14

#8960: SpecConstr usage explodes beyond 4GB with GHC 7.8.1 rc 2 -----------------------------------+--------------------------------------- Reporter: MichalGajda | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.8.1-rc2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Compile-time crash Unknown/Multiple | Test Case: cabal install hPDB Difficulty: Unknown | Blocking: Blocked By: | Related Tickets: | -----------------------------------+--------------------------------------- GHC 7.8 rc2 exhausts all memory on `Bio.PDB.EventParser.PDBEventParser` module in -O3 mode, but not in -O2 mode. The tail of ''-v3'' input seems to indicate that it dies during SpecConstr phase. The module successfully compiled with below 2GB RAM since GHC 6.12, so I wonder why the memory use exploded with the most recent version. *** SpecConstr: ==================== SpecConstr ==================== Result size of SpecConstr STEPS TO REPRODUCE: 1. `cabal install hPDB` RESULT EXPECTED: Successful compilation and installation CURRENT RESULT: Exhausts available memory and crashes when compiling `Bio.PDB.EventParser.PDBEventParser`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8960> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8819: Testsuite failures in 7.8 RC1
by GHC 03 Nov '14

03 Nov '14

#8819: Testsuite failures in 7.8 RC1 ------------------------------------+------------------------------------- Reporter: trommler | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.1-rc1 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- With the recent patches applied to RC1 I managed to bootstrap an unregisterised ghc. Running the testsuite I get the following failures on Linux x86_64: {{{ Unexpected failures: ../../libraries/base/tests fixed [bad stdout] (normal) ../../libraries/base/tests/Numeric num010 [bad stdout] (normal) ../../libraries/process/tests process007 [bad exit code] (normal) codeGen/should_compile T7574 [stderr mismatch] (normal) codeGen/should_gen_asm memcpy [asm mismatch] (normal) codeGen/should_gen_asm memcpy-unroll [asm mismatch] (normal) codeGen/should_gen_asm memcpy-unroll-conprop [asm mismatch] (normal) codeGen/should_run T2838 [bad stdout] (normal) lib/integer integerBits [bad stdout] (normal) lib/integer integerConversions [bad stdout] (normal) numeric/should_run T8726 [bad exit code] (normal) numeric/should_run arith002 [bad stdout] (normal) numeric/should_run arith003 [bad stdout] (normal) numeric/should_run arith004 [bad stdout] (normal) numeric/should_run arith005 [bad stdout] (normal) numeric/should_run arith011 [bad stdout] (normal) numeric/should_run arith012 [bad stdout] (normal) numeric/should_run arith014 [bad stdout] (normal) parser/should_run readRun002 [bad stdout] (normal) perf/compiler T1969 [stat too good] (normal) perf/compiler T3064 [stat too good] (normal) perf/compiler T783 [stat too good] (normal) perf/should_run T3736 [bad stderr] (normal) rts T5423 [bad stderr] (normal) rts T7815 [bad exit code] (threaded1) safeHaskell/check/pkg01 safePkg01 [bad stderr] (normal) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8819> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8849: Unregisterised compiler: arithmetic failure
by GHC 03 Nov '14

03 Nov '14

#8849: Unregisterised compiler: arithmetic failure --------------------------+------------------------------------------------ Reporter: | Owner: trommler | Status: new Type: bug | Milestone: Priority: normal | Version: 7.8.1-rc2 Component: | Operating System: Unknown/Multiple Compiler | Type of failure: Incorrect result at runtime Keywords: | Test Case: arith005 Architecture: | Blocking: Unknown/Multiple | Difficulty: | Unknown | Blocked By: | Related Tickets: #8819 | --------------------------+------------------------------------------------ Compiling the following with RC2 on powerpc 64 downloaded from haskell.org: {{{ main = putStr $ show (-1.0000000001 :: Double) }}} Setting {{{-O}}} yields: {{{ 0.0 }}} Without optimization the correct result is displayed. I prepared an unregisterised compiler on amd64 and see the same issue and more arithmetic tests fail in testsuite. In fact I took the above from arith005. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8849> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8261: Windows Testsuite stuck at configuring timeout
by GHC 03 Nov '14

03 Nov '14

#8261: Windows Testsuite stuck at configuring timeout ------------------------------+--------------------------------- Reporter: leroux | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Test Suite | Version: 7.6.3 Keywords: | Operating System: Windows Architecture: x86 | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------+--------------------------------- When running the testsuite, it gets stuck at {{{Configuring timeout-1...}}}. I tried adding a verbosity flag to the ENV vars, but they didn't make any affect on the {{{./Setup}}} args. Relating to my development setup...I've followed the instructions from http://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows (using MinGW). I was rather surprised when I was building GHC, it threw an error saying that "libmpfr-3.dll" was missing, so I fetched that from a cygwin mirror and threw it in {{{msys/bin}}}, but even after doing that, I got errors saying that it could find certain cygwin libraries ({{{cyg*.dll}}}). So I just installed the entirety of cygwin and it started working fine. The only ticket I found that is related to this is #1599, but I'm not sure. ---- System details: {{{ # Windows 7 x86 (32-bit) $ uname -a MINGW32_NT-6.1 LEROUX-WINBUILD 1.0.18(0.48/3/2) 2012-11-21 22:34 i686 Msys $ echo $PATH /c/MinGW/bin:.:/usr/local/bin:/mingw/bin:/bin:/c/Program Files/Haskell/bin:/c/Program Files/Haskell Platform/2013.2.0.0/lib/extralibs/bin:/c/ Program Files/Haskell Platform/2013.2.0.0/bin:/c/Windows/system32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v 1.0/:/c/Program Files/Haskell Platform/2013.2.0.0/mingw/bin:/c/Program Files/Git/cmd:/c/Users/leroux/AppData/Roaming/cabal/bin:/mingw/bin:/us r/bin:/c/cygwin/bin }}} ---- Here's the testsuite run: {{{ $ make test WAY=normal make -C testsuite/tests CLEANUP=1 OUTPUT_SUMMARY=../../testsuite_summary.txt fast make[1]: Entering directory `/home/leroux/devel/ghc- validate/testsuite/tests' make fast=YES make[2]: Entering directory `/home/leroux/devel/ghc- validate/testsuite/tests' Looks like you don't have timeout, building it first... make -C ../timeout all make[3]: Entering directory `/home/leroux/devel/ghc- validate/testsuite/timeout' rm -rf install-inplace 'C:/MinGW/msys/1.0/home/leroux/devel/ghc-validate/inplace/bin/ghc- stage2.exe' --make Setup ./Setup configure --with-compiler='C:/MinGW/msys/1.0/home/leroux/devel /ghc-validate/inplace/bin/ghc-stage2.exe' \ --with-hc- pkg='C:/MinGW/msys/1.0/home/leroux/devel/ghc-validate/inplace/bin/ghc- pkg.exe' \ --with- hsc2hs='C:/MinGW/msys/1.0/home/leroux/devel/ghc- validate/inplace/bin/hsc2hs.exe' \ \ --ghc-option=-threaded --prefix='C:/MinGW/msys/1.0/home/leroux/devel/ghc- validate/testsuite/timeout/install-inplace ' Configuring timeout-1... }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8261> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8295: T4850 deadlocks when run with -Ds on Windows (also it's failing)
by GHC 03 Nov '14

03 Nov '14

#8295: T4850 deadlocks when run with -Ds on Windows (also it's failing) --------------------------+------------------------------------------------ Reporter: ezyang | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: | Version: 7.7 Runtime System | Operating System: Windows Keywords: | Type of failure: Incorrect result at runtime Architecture: x86_64 | Test Case: T4850 (amd64) | Blocking: Difficulty: | Unknown | Blocked By: | Related Tickets: | --------------------------+------------------------------------------------ T4850 has been failing recently, reporting too *few* OS threads allocated. That's pretty odd. What is also odd (and much less good) is that T4850 is deadlocking when you run it with `-Ds`. Uh oh! {{{ bash.exe-3.1$ ./T4850 +RTS -Ds 7eb0: created capset 0 of type 2 7eb0: created capset 1 of type 3 7eb0: cap 0: initialised 7eb0: assigned cap 0 to capset 0 7eb0: assigned cap 0 to capset 1 7eb0: allocated 1 more capabilities 7eb0: new task (taskCount: 1) 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: created thread 1 7eb0: new bound thread (1) 7eb0: cap 0: schedule() 7eb0: cap 0: running thread 1 (ThreadRunGHC) 7eb0: cap 0: created thread 2 7eb0: cap 0: thread 1 stopped (finished) 7eb0: bound thread (1) finished 7eb0: starting new worker on capability 0 7eb0: new worker task (taskCount: 2) 7eb0: task exiting 7eb0: new task (taskCount: 2) 7eb0: returning; I want capability 0 7fc0: cap 0: schedule() 7fc0: giving up capability 0 7fc0: passing capability 0 to worker 0x7eb0 7eb0: resuming capability 0 7eb0: cap 0: created thread 3 7eb0: new bound thread (3) 7eb0: cap 0: schedule() 7eb0: giving up capability 0 7eb0: passing capability 0 to worker 0x7fc0 7fc0: woken up on capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to bound task 0x7eb0 7eb0: woken up on capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (suspended while making a foreign call) 7eb0: starting new worker on capability 0 7eb0: new worker task (taskCount: 3) 7eb0: returning; I want capability 0 7b50: cap 0: schedule() 7b50: giving up capability 0 7b50: passing capability 0 to bound task 0x7eb0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: created thread 4 7eb0: cap 0: thread 3 stopped (blocked on an MVar) thread 3 @ 00e03bbc is blocked on an MVar @ 00e021e4 (TSO_DIRTY) 7eb0: giving up capability 0 7eb0: passing capability 0 to worker 0x7b50 7b50: woken up on capability 0 7b50: resuming capability 0 7b50: cap 0: running thread 4 (ThreadRunGHC) 7b50: cap 0: thread 4 stopped (suspended while making a foreign call) 7b50: starting new worker on capability 0 7b50: new worker task (taskCount: 4) 7b50: new task (taskCount: 4) 7b50: returning; I want capability 0 7de4: cap 0: schedule() 7de4: giving up capability 0 7de4: passing capability 0 to worker 0x7b50 7b50: resuming capability 0 7b50: cap 0: created thread 5 7b50: new bound thread (5) 7b50: cap 0: schedule() 7b50: cap 0: running thread 5 (ThreadRunGHC) 7b50: cap 0: thread 5 stopped (finished) 7b50: bound thread (5) finished 7b50: freeing capability 0 7b50: task exiting 7b50: returning; I want capability 0 7b50: resuming capability 0 7b50: cap 0: running thread 4 (ThreadRunGHC) 7b50: cap 0: waking up thread 3 on cap 0 7b50: cap 0: thread 4 stopped (finished) 7b50: giving up capability 0 7b50: passing capability 0 to bound task 0x7eb0 7eb0: woken up on capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (suspended while making a foreign call) 7eb0: freeing capability 0 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (suspended while making a foreign call) 7eb0: freeing capability 0 4 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: created thread 6 7eb0: cap 0: thread 3 stopped (blocked on an MVar) thread 3 @ 00e03bbc is blocked on an MVar @ 00e021e4 (TSO_DIRTY) 7eb0: giving up capability 0 7eb0: passing capability 0 to worker 0x7b50 7b50: woken up on capability 0 7b50: resuming capability 0 7b50: cap 0: running thread 6 (ThreadRunGHC) 7b50: cap 0: thread 6 stopped (suspended while making a foreign call) 7b50: freeing capability 0 7b50: new task (taskCount: 4) 7b50: returning; I want capability 0 7b50: resuming capability 0 7b50: cap 0: created thread 7 7b50: new bound thread (7) 7b50: cap 0: schedule() 7b50: cap 0: running thread 7 (ThreadRunGHC) 7b50: cap 0: thread 7 stopped (finished) 7b50: bound thread (7) finished 7b50: freeing capability 0 7b50: task exiting 7b50: returning; I want capability 0 7b50: resuming capability 0 7b50: cap 0: running thread 6 (ThreadRunGHC) 7b50: cap 0: waking up thread 3 on cap 0 7b50: cap 0: thread 6 stopped (finished) 7b50: giving up capability 0 7b50: passing capability 0 to bound task 0x7eb0 7eb0: woken up on capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (suspended while making a foreign call) 7eb0: freeing capability 0 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (suspended while making a foreign call) 7eb0: freeing capability 0 4 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (yielding) 7eb0: cap 0: running thread 3 (ThreadRunGHC) 7eb0: cap 0: thread 3 stopped (finished) 7eb0: bound thread (3) finished 7eb0: freeing capability 0 7eb0: task exiting 7eb0: new task (taskCount: 4) 7eb0: returning; I want capability 0 7eb0: resuming capability 0 7eb0: cap 0: created thread 8 7eb0: new bound thread (8) 7eb0: cap 0: schedule() 7eb0: cap 0: running thread 8 (ThreadRunGHC) 7eb0: cap 0: thread 8 stopped (finished) 7eb0: bound thread (8) finished 7eb0: freeing capability 0 7eb0: task exiting 7eb0: new task (taskCount: 4) 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7eb0: returning; I want capability 0 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (suspended while making a foreign call) 7fc0: passing capability 0 to worker 0x7eb0 7fc0: returning; I want capability 0 7fc0: resuming capability 0 7fc0: cap 0: running thread 2 (ThreadRunGHC) 7fc0: cap 0: thread 2 stopped (yielding) 7fc0: SCHED_INTERRUPTING 7fc0: cap 0: requesting sequential GC 7fc0: grabbing all the capabilies (0/1) all threads: threads on capability 0: thread 2 @ 00e037bc is not blocked (TSO_DIRTY) other threads: 7fc0: deleting all threads 7fc0: cap 0: raising exception in thread 2. 7fc0: cap 0: starting GC 7fc0: cap 0: GC working 7fc0: cap 0: GC idle 7fc0: cap 0: GC done 7fc0: cap 0: GC idle 7fc0: cap 0: GC done 7fc0: cap 0: GC idle 7fc0: cap 0: GC done 7fc0: cap 0: all caps stopped for GC 7fc0: cap 0: finished GC 7fc0: SCHED_SHUTTING_DOWN 7fc0: giving up capability 0 7fc0: passing capability 0 to worker 0x7eb0 7eb0: resuming capability 0 7eb0: passing capability 0 to worker 0x7fc0 7eb0: shutting down capability 0, attempt 0 7fc0: woken up on capability 0 7eb0: runnable threads or workers still alive, yielding 7eb0: passing capability 0 to worker 0x7fc0 7eb0: shutting down capability 0, attempt 1 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 2 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 3 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 4 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 5 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 6 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 7 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 8 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 9 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 10 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 11 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 12 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 13 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 14 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 15 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 16 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 17 7eb0: not owner, yielding 7eb0: shutting down capability 0, attempt 18 7eb0: not owner, yielding ... }}} ad infinitum. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8295> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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