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Hello, I wrote a small program in order to get an idea of context switch times of the Linux kernel. The program runs fine on Linux. Valgrind 2.2.0 does report the program to be clean. Just out of curiosity, I tried to compile and run the same program with Cygwin. However, on cygwin it segfaults. Did I do anything wrong, or is this a cygwin bug ? $ ./ctxtsw.exe Iterations: 5 Segmentation fault (core dumped) $ cat ctxtsw.exe.stackdump Exception: STATUS_ACCESS_VIOLATION at eip=00000001 eax=00000000 ebx=00446048 ecx=00000004 edx=00000000 esi=00000001 edi=18ACEF78 ebp=18ACEF88 esp=18ACEF70 program=C:\cygwin\home\B\test\ctxtsw\ctxtsw.exe, pid 2044, thread unknown (0x884) cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023 Stack trace: Frame Function Args 18ACEF88 00000001 (00000000, FFFFFFFF, 18ACEFC8, 61003B7D) 18ACEFC8 6109D17E (004D07B0, 18ACF000, 6109D110, 00000000) 18ACEFF8 61003E94 (00000000, 00000000, 00000000, 00000000) 18ACFF98 61003EDA (00000000, 00000000, 00000000, 00000000) End of stack trace $ Cygwin DLL version info: DLL version: 1.5.18 DLL epoch: 19 DLL bad signal mask: 19005 DLL old termios: 5 DLL malloc env: 28 API major: 0 API minor: 132 Shared data: 4 DLL identifier: cygwin1 Mount registry: 2 Cygnus registry name: Cygnus Solutions Cygwin registry name: Cygwin Program options name: Program Options Cygwin mount registry name: mounts v2 Cygdrive flags: cygdrive flags Cygdrive prefix: cygdrive prefix Cygdrive default prefix: Build date: Sat Jul 2 20:30:04 EDT 2005 Shared id: cygwin1S4
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ctxtsw.cpp
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