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To:	cygwin AT cygwin DOT com
From:	jojelino <jojelino AT gmail DOT com>
Subject:	deadlock with busy waiting on sigfe
Date:	Tue, 15 Jan 2013 11:00:16 +0900
Lines:	80
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Caused by executing following command and ctrl+c to interrupt in bash shell.
sh -c "cd /tmp/openjpeg/src/bin/jp2 && /usr/bin/i686-pc-mingw32-gcc.exe 
  -DOPJ_EXPORTS -ffast-math -O3 -DNDEBUG 
@CMakeFiles/opj_compress.dir/includes_C.rsp   -o 
CMakeFiles/opj_compress.dir/convert.c.obj   -c 
/tmp/openjpeg/src/bin/jp2/convert.c"

SleepEx is being spammed across threads. some thread got tls lock but 
didn't released it.
how can i fix the problem?
(gdb) thread apply all bt
Thread 3 (Thread 8576.0x1b30):
#0  0x571ec771 in filename_completion_function ()
    from /usr/bin/cygreadline7.dll
#1  0x7c958f81 in ntdll!LdrShutdownThread ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#2  0x571ec3c0 in filename_completion_function ()
    from /usr/bin/cygreadline7.dll
#3  0x7c97fc9b in ntdll!RtlExitUserThread ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#4  0x7c97fc73 in ntdll!DbgUiRemoteBreakin ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#5  0x00000000 in ?? ()

Thread 2 (Thread 8576.0xe38):
#0  0x7c801e8c in SleepEx () from /cygdrive/c/WINDOWS/system32/kernel32.dll
#1  0x610873f2 in yield ()
     at 
/netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/miscfuncs.cc:251
#2  0x610d6da4 in _cygtls::lock() () from /usr/bin/cygwin1.dll
#3  0x6103035e in sigpacket::setup_handler (this=0xc3ac34,
     handler=0x6102fdb0 <signal_exit(int, siginfo_t*)>, siga=..., 
tls=0x22ce64)
     at 
/netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/exceptions.cc:797
#4  0x610319bb in sigpacket::process (this=0xc3ac34)
     at 
/netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/exceptions.cc:1278
---Type <return> to continue, or q <return> to quit---
#5  0x610dd38c in wait_sig ()
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/sigproc.cc:1415
#6  0x61003ea5 in cygthread::callfunc (this=0x6118b400 <threads>,
     issimplestub=<optimized out>)
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/cygthread.cc:51
#7  0x6100442f in cygthread::stub (arg=0x6118b400 <threads>)
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/cygthread.cc:93
#8  0x6100538d in _cygtls::call2 (this=<optimized out>,
     func=0x610043e0 <_ZN9cygthread4stubEPv AT 4>, arg=0x6118b400 <threads>,
     buf=0x6100551b <_cygtls::call(unsigned long (*)(void*, void*), 
void*)+91>)
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/cygtls.cc:99
#9  0x00c3ffb8 in ?? ()
#10 0x7c82484f in KERNEL32!GetModuleHandleA ()
    from /cygdrive/c/WINDOWS/system32/kernel32.dll
#11 0x00000000 in ?? ()

Thread 1 (Thread 8576.0x27b8):
#0  0x7c801e8d in SleepEx () from /cygdrive/c/WINDOWS/system32/kernel32.dll
#1  0x610873f2 in yield ()
     at 
/netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/miscfuncs.cc:251
#2  0x610d6c8c in _sigfe () from /usr/bin/cygwin1.dll
#3  0x61103990 in pthread_kill ()
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/thread.cc:3024
#4  0x610075fa in _cygwin_exit_return ()
---Type <return> to continue, or q <return> to quit---
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/dcrt0.cc:978
#5  0x6100538d in _cygtls::call2 (this=<optimized out>,
     func=0x61006bf0 <dll_crt0_1(void*)>, arg=0x0,
     buf=0x6100551b <_cygtls::call(unsigned long (*)(void*, void*), 
void*)+91>)
     at /netrel/src/cygwin-snapshot-20130107-1/winsup/cygwin/cygtls.cc:99
#6  0x0022ff78 in ?? ()
#7  0x00465672 in ?? ()
#8  0x00401033 in ?? ()
#9  0x7c82f243 in ProcessIdToSessionId ()
    from /cygdrive/c/WINDOWS/system32/kernel32.dll
#10 0x00000000 in ?? ()
-- 
Regards.


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