#323: GCD for_reading queue crash
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Reporter: ben@… | Owner: pthomson@…
Type: defect | Status: new
Priority: major | Milestone:
Component: MacRuby | Keywords:
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Running the attached program and sending data to the syslog causes an
assertion failure.
{{{
# macruby gcd_test.rb
}}}
in another shell do this a few times:
{{{
syslog -l 3 -s 'hi'
syslog -l 3 -s 'hi'
syslog -l 3 -s 'hi'
}}}
The crash is the eventual result of assertion failure:
{{{Assertion failed: (pimp != NULL), function __rb_vm_bcall, file vm.cpp,
line 2188.}}}
except I can also get it to crash here:
{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
[Switching to process 7775]
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x000000010017ebeb in rb_vm_block_eval0 (b=0x20001df20, self=513,
argc=0, argv=0x0) at vm.cpp:3968
#2 0x0000000100119a26 in rb_source_event_handler (sourceptr=<value
temporarily unavailable, due to optimizations>) at gcd.c:673
#3 0x00007fff820eb46d in _dispatch_source_invoke ()
#4 0x00007fff820ea824 in _dispatch_queue_invoke ()
#5 0x00007fff820ea94d in _dispatch_queue_drain ()
#6 0x00007fff820ea7a4 in _dispatch_queue_invoke ()
#7 0x00007fff820ea34e in _dispatch_worker_thread2 ()
#8 0x00007fff820e9c80 in _pthread_wqthread ()
#9 0x00007fff820e9b1d in start_wqthread ()
}}}
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Ticket URL: <http://www.macruby.org/trac/ticket/323>
MacRuby <http://macruby.org/>