[Mono-bugs] [Bug 625359] race in thread pool shutdown

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http://bugzilla.novell.com/show_bug.cgi?id=625359

http://bugzilla.novell.com/show_bug.cgi?id=625359#c1


--- Comment #1 from Gonzalo Paniagua Javier <gonzalo at novell.com> 2010-08-03 19:28:44 UTC ---
I've been unable to reproduce this problem in a Core 2 Duo. In a Quad Core, I
eventually got a SIGSEGV, but the stack trace is this one:
Thread 2 (Thread 0x2760b70 (LWP 14720)):
#0  0x00af1422 in __kernel_vsyscall ()
#1  0x00318f5b in read () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x080da06c in read (signal=11, ctx=0x275fd3c)
    at /usr/include/bits/unistd.h:45
#3  mono_handle_native_sigsegv (signal=11, ctx=0x275fd3c)
    at mini-exceptions.c:1931
#4  0x0805b61f in mono_sigsegv_signal_handler (_dummy=11, info=0x275fcbc, 
    context=0x275fd3c) at mini.c:5359
#5  <signal handler called>
#6  mono_install_handler_block_guard (thread=0x53958, ctx=0x275fe5c)
    at mini-exceptions.c:2137
#7  0x0811e86b in sigusr1_signal_handler (_dummy=35, info=0x275feac, context=
    0x275ff2c) at mini-posix.c:208
#8  <signal handler called>
#9  0x00af1422 in __kernel_vsyscall ()
#10 0x00318c7c in __lll_unlock_wake () from /lib/tls/i686/cmov/libpthread.so.0
#11 0x0031542b in _L_unlock_628 () from /lib/tls/i686/cmov/libpthread.so.0
#12 0x0031534a in __pthread_mutex_unlock_usercnt ()
   from /lib/tls/i686/cmov/libpthread.so.0
#13 0x0815ca51 in thread_adjust_static_data (thread=0x321ff4) at threads.c:3644
#14 0x0815e79f in start_wrapper (data=0x0) at threads.c:697
#15 0x081e534f in thread_start_routine (args=0x8a1c3ac) at wthreads.c:285
#16 0x08216f59 in GC_start_routine (arg=0x5ea00) at pthread_support.c:1390
#17 0x0031196e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#18 0x001dda4e in clone () from /lib/tls/i686/cmov/libc.so.6

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