[Haskell-cafe] GUI Program Hangs in GHCI
Jason Dagit
dagitj at gmail.com
Mon Jul 4 02:16:55 CEST 2011
Hello,
I have a GUI program that when I compile it and run it there are no
problems. When I load it into GHCI and type, "main", it loads the
main window but there are no window decorations and the program hangs
to the point where I have to kill the ghci process. You see a
spinning cursor when you mouse over the window.
I found this old email regarding gtk2hs:
http://web.archiveorange.com/archive/v/nDNOvMeDATtTGn026lbI
I recompiled the program to use -threaded but the behavior is
unchanged (if the email above describes my problem then I expected the
compiled version to start having issues).
What else can cause the hangs I'm seeing?
I'm using the GLFW-b library on hackage and the program I'm trying to
run are any of the executables from the nehe-tuts package (also on
hackage). To reproduce my hangs, I think you need OSX (I didn't test
this on windows or linux), and then type the following:
{{{
mkdir -p ~/tmp/test
cd ~/tmp/test
cabal update
cabal-dev install-deps nehe-tuts
cabal unpack nehe-tuts
cabal-dev ghci nehe-tuts-0.2.3/lesson01.hs
*Main> main
}}}
Doing a force quit on ghci gives me a stack trace via the OSX crash
reporting system. You'll find the relevant bits from that at the end
of this email.
What debugging techniques do I have at my disposal for figuring out
what is going wrong here? At least one person has suggested that
possibly ghci and the GUI bits of glfw are competing for input and
conflicting with each other. If that's the case, how could I be sure
and what would I do about it?
Thanks,
Jason
{{{
Process: ghc [48045]
Path:
/Library/Frameworks/GHC.framework/Versions/7.0.3-x86_64/usr/lib/ghc-7.0.3/ghc
UID: 502
Thread 84d5f8 DispatchQueue 1
User stack:
47 __semwait_signal + 10 (in libSystem.B.dylib) [0x7fff8760ef8a]
Kernel stack:
46 semaphore_wait_continue + 0 [0x22a88f]
1 lo_alltraps + 454 [0x2a1976]
1 i386_astintr + 47 [0x2aacb4]
1 ast_taken + 247 [0x219432]
1 bsd_ast + 806 [0x48fea8]
1 postsig + 432 [0x48cfff]
1 exit1 + 449 [0x48187a]
1 task_terminate_internal + 242 [0x22ca4d]
1 ipc_space_destroy + 177 [0x215868]
1 ipc_right_clean + 397 [0x215256]
1 mach_notify_no_senders + 75 [0x23ff7b]
1 mach_msg_send_from_kernel_proper + 90 [0x21e0cb]
1 ipc_kmsg_send + 105 [0x210a86]
1 ipc_kobject_server + 267 [0x21dbfc]
1 iokit_notify + 154 [0x284eed]
1 iokit_client_died + 85 [0x571527]
1 com.apple.GeForce 6.3.0 + 47083 [0x830867eb]
1 com.apple.GeForce 6.3.0 + 305981
[0x830c5b3d]
1 com.apple.GeForce 6.3.0 +
258633 [0x830ba249]
1 OSObject::release() const +
25 [0x506759]
1
OSObject::taggedRelease(void const*) const + 32 [0x50673e]
1 com.apple.GeForce 6.3.0
+ 253194 [0x830b8d0a]
1 com.apple.GeForce
6.3.0 + 251919 [0x830b880f]
1 com.apple.NVDAResman
6.3.0 + 453556 [0x83689bb4]
1
com.apple.NVDAResman 6.3.0 + 445937 [0x83687df1]
1
com.apple.NVDAResman 6.3.0 + 302211 [0x83664c83]
1
com.apple.NVDAResman 6.3.0 + 249957 [0x83658065]
1
com.apple.NVDAResman 6.3.0 + 112888 [0x836368f8]
1
com.apple.NVDAResman 6.3.0 + 111718 [0x83636466]
1
com.apple.nvidia.nv50hal 6.3.0 + 623157 [0x83e1a235]
1
com.apple.nvidia.nv50hal 6.3.0 + 605845 [0x83e15e95]
1
com.apple.nvidia.nv50hal 6.3.0 + 606056 [0x83e15f68]
Thread 84d67e DispatchQueue 2
User stack:
46 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff875edfc5]
46 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff875ee128]
46 _dispatch_worker_thread2 + 252 (in libSystem.B.dylib)
[0x7fff875ee7fe]
46 _dispatch_queue_invoke + 185 (in libSystem.B.dylib)
[0x7fff875eecd4]
46 kevent + 10 (in libSystem.B.dylib) [0x7fff875ed12a]
Kernel stack:
46 kevent + 97 [0x47a681]
Thread 84d5f9
User stack:
46 kevent64 + 10 (in libSystem.B.dylib) [0x7fff87687512]
Kernel stack:
46 kevent + 97 [0x47a681]
Thread 84d5fa
User stack:
46 ??? [0x10681d9e8]
38 ??? [0x10a60403b]
37 CGLFlushDrawable + 67 (in OpenGL) [0x7fff819d3261]
37 gldFinish + 874 (in GeForceGLDriver) [0x2000d728a]
37 glcNoop + 1072 (in OpenGL) [0x7fff819d491c]
37 CGSFlushSurfaceWithOptions + 396 (in CoreGraphics)
[0x7fff88fb81f9]
37 _CGSFlushSurfaceInline + 210 (in CoreGraphics)
[0x7fff88fb848c]
37 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff875d429a]
1 glfwSwapBuffers + 69 (in libglfw.dylib) [0x1036f6ba5]
1 _glfwPlatformPollEvents + 132 (in libglfw.dylib) [0x1036f26c4]
1 -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 155 (in AppKit)
[0x7fff88135751]
1 _DPSNextEvent + 103 (in AppKit) [0x7fff88135ba5]
8 ??? [0x109fc6d03]
8 glFlush_Exec + 133 (in GLEngine) [0x11c5b7150]
8 gldUpdateDispatch + 13841 (in GeForceGLDriver) [0x2000d6711]
8 IOConnectCallMethod + 325 (in IOKit) [0x7fff81ae3328]
8 io_connect_method + 490 (in IOKit) [0x7fff81b26ad2]
8 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff875d429a]
Kernel stack:
32 ipc_mqueue_receive_continue + 0 [0x210d84]
12 lo64_mach_scall + 77 [0x2a255d]
12 thread_setuserstack + 405 [0x295c17]
8 mach_msg_overwrite_trap + 274 [0x216f84]
8 ipc_kmsg_send + 105 [0x210a86]
8 ipc_kobject_server + 244 [0x21dbe5]
8 iokit_server_routine + 4669 [0x286610]
8 is_io_connect_method + 467 [0x56e2b3]
8 IOUserClient::externalMethod(unsigned int,
IOExternalMethodArguments*, IOExternalMethodDispatch*, OSObject*,
void*) + 909 [0x56d9ff]
8 shim_io_connect_method_scalarI_structureO + 455 [0x56d160]
8 com.apple.GeForce 6.3.0 + 49337 [0x830870b9]
8 com.apple.GeForce 6.3.0 + 310514 [0x830c6cf2]
8 com.apple.GeForce 6.3.0 + 64383 [0x8308ab7f]
8 IOLockSleep + 39 [0x53633c]
8 lck_mtx_sleep + 87 [0x221d42]
8 thread_block + 33 [0x227654]
8 thread_block_reason + 331 [0x2275c6]
8 thread_dispatch + 1966 [0x227327]
8 machine_switch_context + 659 [0x2a9adb]
4 mach_msg_overwrite_trap + 586 [0x2170bc]
4 ipc_mqueue_receive + 89 [0x211dc4]
4 thread_block + 33 [0x227654]
4 thread_block_reason + 309 [0x2275b0]
4 thread_go + 1961 [0x22698c]
4 thread_setrun + 1360 [0x225bba]
4 machine_idle + 239 [0x2ad0f5]
1 call_continuation + 28 [0x2a179c]
1 idle_thread + 58 [0x22812e]
1 thread_run + 118 [0x22743b]
1 thread_dispatch + 1347 [0x2270bc]
1 ml_set_interrupts_enabled + 47 [0x2a45e3]
1 lo_allintrs + 302 [0x2a1c2e]
1 interrupt + 182 [0x2ab419]
1 lapic_interrupt + 108 [0x2b32b2]
1 mp_kdp_exit + 860 [0x2b4506]
1 sync_iss_to_iks + 124 [0x2aabf6]
Thread 84d623
User stack:
46 __semwait_signal + 10 (in libSystem.B.dylib) [0x7fff8760ef8a]
Kernel stack:
46 semaphore_wait_continue + 0 [0x22a88f]
}}}
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