[MacRuby] #463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Hiya! I'm experiencing random crashes in a MacRuby app currently in development (http://github.com/rubiojr/canasto). Adding lot's of debugging code, I've traced the crash to happen always on the same place: a call to RestClient.get inside a Ruby thread (canasto.rb source file). It's my first Cocoa app and my concurrent programming skills are quite poor, so I'm probably not skilled enough to solve the threading problem the right way... Anyway, I'm gonna paste the backtrace below and the crash report is attached... BTW: Thank you guys. Your work and talent give us, the ruby developers, OSX superpowers! ---------------- terminate called without an active exception [Session started at 2009-11-26 19:28:50 +0100.] GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load- rules all Attaching to process 15794. [Switching to process 15794 thread 0x7a0f] [Switching to process 15794 thread 0x7a0f] (gdb) backtrace #0 0x93c2462e in __abort () #1 0x93c2468a in abort () #2 0x92baf005 in __gnu_cxx::__verbose_terminate_handler () #3 0x92bad10c in __gxx_personality_v0 () #4 0x92bad14b in std::terminate () #5 0x92bad261 in __cxa_throw () #6 0x01020caa in rb_vm_thread_destructor (userdata=0x2b5e890) at vm.cpp:3348 #7 0x93b6bb9a in _pthread_exit () #8 0x93b3f437 in _pthread_testcancel () #9 0x93b69e5a in _pthread_cond_wait () #10 0x93b8f9f8 in pthread_cond_timedwait$UNIX2003 () #11 0x01028cd2 in rb_thread_wait_for (time={tv_sec = 60, tv_usec = 0}) at vm.cpp:4324 #12 0x00f4c176 in rb_f_sleep (recv=179689232, sel=0x1774a0, argc=1, argv=0xb0537c80) at process.c:2919 #13 0x0101a67c in rb_vm_dispatch (cache=0xab61790, top=179689232, self=179689232, sel=<value temporarily unavailable, due to optimizations>, block=0x0, opt=2 '\002', argc=1) at dispatcher.cpp:415 #14 0x01f3ab2a in ?? () #15 0x010295ec in rb_vm_thread_run (thread=45475984) at vm.cpp:4156 #16 0x93b69155 in _pthread_start () #17 0x93b69012 in thread_start () -- Ticket URL: <http://www.macruby.org/trac/ticket/463> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Comment(by sergio@…): backtrace attached also -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:2> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Comment(by lsansonetti@…): Thanks for the report. Looking at the backtrace, it looks like a problem with thread cancellation. Are you by any (mal)chance using timeout.rb, or, manually canceling/killing running threads? This functionality is not fully stable at this point. Also, could you tell me how I can reproduce the crash here, using your app? -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:3> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Comment(by logan@…): Unfortunately, Net::HTTP uses timeout internally and attempts to asynchronously raise an exception in a blocked thread after a set amount of time. -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:4> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Comment(by sergio@…): Hey guys, thanks a lot for the feedback. Not sure if it's the same, but the following code triggers the bug: {{{ require 'rubygems' require 'restclient' threads = [] loop do threads << Thread.start do puts 'doing request' RestClient.get 'http://google.com' end sleep 0.1 end }}} I guess I'll workaround it using NSURLConnection or something else... Thanks! -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:5> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: new Priority: minor | Milestone: Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Changes (by martinlagardette@…): * milestone: MacRuby 0.5 => Comment: Could you check with the latest nightlies / HEAD, this seems to be working here: {{{ $> macruby t.rb doing request doing request doing request doing request doing request doing request doing request doing request doing request doing request doing request doing request doing request [...] }}} -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:6> MacRuby <http://macruby.org/>
#463: Intermitent crashes with MacRuby 0.5 HEAD (2009/11/26), Ruby threads and RestClient/Net:HTTP -------------------------------+-------------------------------------------- Reporter: sergio@… | Owner: lsansonetti@… Type: defect | Status: closed Priority: minor | Milestone: MacRuby 0.7 Component: MacRuby | Resolution: fixed Keywords: | -------------------------------+-------------------------------------------- Changes (by martinlagardette@…): * status: new => closed * resolution: => fixed * milestone: => MacRuby 0.7 Old description:
Hiya!
I'm experiencing random crashes in a MacRuby app currently in development (http://github.com/rubiojr/canasto).
Adding lot's of debugging code, I've traced the crash to happen always on the same place: a call to RestClient.get inside a Ruby thread (canasto.rb source file).
It's my first Cocoa app and my concurrent programming skills are quite poor, so I'm probably not skilled enough to solve the threading problem the right way...
Anyway, I'm gonna paste the backtrace below and the crash report is attached...
BTW: Thank you guys. Your work and talent give us, the ruby developers, OSX superpowers!
---------------- terminate called without an active exception
[Session started at 2009-11-26 19:28:50 +0100.] GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load- rules all Attaching to process 15794. [Switching to process 15794 thread 0x7a0f] [Switching to process 15794 thread 0x7a0f] (gdb) backtrace #0 0x93c2462e in __abort () #1 0x93c2468a in abort () #2 0x92baf005 in __gnu_cxx::__verbose_terminate_handler () #3 0x92bad10c in __gxx_personality_v0 () #4 0x92bad14b in std::terminate () #5 0x92bad261 in __cxa_throw () #6 0x01020caa in rb_vm_thread_destructor (userdata=0x2b5e890) at vm.cpp:3348 #7 0x93b6bb9a in _pthread_exit () #8 0x93b3f437 in _pthread_testcancel () #9 0x93b69e5a in _pthread_cond_wait () #10 0x93b8f9f8 in pthread_cond_timedwait$UNIX2003 () #11 0x01028cd2 in rb_thread_wait_for (time={tv_sec = 60, tv_usec = 0}) at vm.cpp:4324 #12 0x00f4c176 in rb_f_sleep (recv=179689232, sel=0x1774a0, argc=1, argv=0xb0537c80) at process.c:2919 #13 0x0101a67c in rb_vm_dispatch (cache=0xab61790, top=179689232, self=179689232, sel=<value temporarily unavailable, due to optimizations>, block=0x0, opt=2 '\002', argc=1) at dispatcher.cpp:415 #14 0x01f3ab2a in ?? () #15 0x010295ec in rb_vm_thread_run (thread=45475984) at vm.cpp:4156 #16 0x93b69155 in _pthread_start () #17 0x93b69012 in thread_start ()
New description: Hiya! I'm experiencing random crashes in a MacRuby app currently in development (http://github.com/rubiojr/canasto). Adding lot's of debugging code, I've traced the crash to happen always on the same place: a call to RestClient.get inside a Ruby thread (canasto.rb source file). It's my first Cocoa app and my concurrent programming skills are quite poor, so I'm probably not skilled enough to solve the threading problem the right way... Anyway, I'm gonna paste the backtrace below and the crash report is attached... BTW: Thank you guys. Your work and talent give us, the ruby developers, OSX superpowers! ---------------- {{{ terminate called without an active exception [Session started at 2009-11-26 19:28:50 +0100.] GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load- rules all Attaching to process 15794. [Switching to process 15794 thread 0x7a0f] [Switching to process 15794 thread 0x7a0f] (gdb) backtrace #0 0x93c2462e in __abort () #1 0x93c2468a in abort () #2 0x92baf005 in __gnu_cxx::__verbose_terminate_handler () #3 0x92bad10c in __gxx_personality_v0 () #4 0x92bad14b in std::terminate () #5 0x92bad261 in __cxa_throw () #6 0x01020caa in rb_vm_thread_destructor (userdata=0x2b5e890) at vm.cpp:3348 #7 0x93b6bb9a in _pthread_exit () #8 0x93b3f437 in _pthread_testcancel () #9 0x93b69e5a in _pthread_cond_wait () #10 0x93b8f9f8 in pthread_cond_timedwait$UNIX2003 () #11 0x01028cd2 in rb_thread_wait_for (time={tv_sec = 60, tv_usec = 0}) at vm.cpp:4324 #12 0x00f4c176 in rb_f_sleep (recv=179689232, sel=0x1774a0, argc=1, argv=0xb0537c80) at process.c:2919 #13 0x0101a67c in rb_vm_dispatch (cache=0xab61790, top=179689232, self=179689232, sel=<value temporarily unavailable, due to optimizations>, block=0x0, opt=2 '\002', argc=1) at dispatcher.cpp:415 #14 0x01f3ab2a in ?? () #15 0x010295ec in rb_vm_thread_run (thread=45475984) at vm.cpp:4156 #16 0x93b69155 in _pthread_start () #17 0x93b69012 in thread_start () }}} -- Comment: I let it run for several minutes without issue, so I'll assume it has been fixed in 0.7 (HEAD in trunk), when work on thread safety has been done :-) -- Ticket URL: <http://www.macruby.org/trac/ticket/463#comment:7> MacRuby <http://macruby.org/>
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