From: Roger Pack <redmine@...>
Date: 2009-12-03T08:18:54+09:00
Subject: [ruby-core:27005] [Bug #2394] [BUG] pthread_mutex_lock: 22 revisited

Issue #2394 has been updated by Roger Pack.


Note that this also appears to be able to lock a ruby process.
See the following example of one that was unresponsive, this is what gdb's backtrace gave for it.
Thanks.
-r

(gdb) bt
#0  0xb7fb0410 in __kernel_vsyscall ()
#1  0xb7f90589 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7f8bba6 in _L_lock_95 () from /lib/tls/i686/cmov/libpthread.so.0
#3  0xb7f8b58a in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#4  0x0813002a in native_mutex_lock (lock=0xfffffe00) at thread_pthread.c:36
#5  0x081305bb in rb_thread_interrupt (th=0x81c4738) at thread.c:254
#6  0x08134e0b in thread_start_func_2 (th=0x8f13048, stack_start=0x81c4738) at thread.c:452
#7  0x08135081 in thread_start_func_1 (th_ptr=0xfffffe00) at thread_pthread.c:351
#8  0xb7f894fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7ea6e5e in clone () from /lib/tls/i686/cmov/libc.so.6
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http://redmine.ruby-lang.org/issues/show/2394

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