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I have the sporadic make core dump problem. The environment is a very heavily recursive makefile setup. I can't post exact steps to repro, but perhaps you can repro easily with an attempt to build mozilla. I notice that if I start make in a CMD window running bash, leave the window on top, and don't start any other applications during the make run (including screen savers, virus software, etc.), it runs fine. However, if I open another application during the make run, or even open a window which was minimized, it will sometimes crash with the following error message. I wonder if there is some window change signal being passed to the application? I remember in my old SunView days, there was a SIGWINCH which was delivered when windows were raised, lowered, etc. It seems similar, but the signal reported is Signal 11 (Seg. fault). 0 [main] make 202 open_stackdumpfile: Dumping stack trace to make.exe.stackdump Signal 11 Here is the stackdump file: Exception: STATUS_ACCESS_VIOLATION at eip=0040D5EF eax=00000004 ebx=614E0AF4 ecx=61098838 edx=0242EDC8 esi=FFFFFFFF edi=00000000 ebp=0242EE04 esp=0242EDD4 program=D:\cygwin\bin\make.exe cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023 Stack trace: Frame Function Args 0242EE04 0040D5EF (00000005, 0A01ACA0, 000000C8, 00408BAE) 0242EE24 61082652 (00000005, 0A01ACA0, 000000C8, 00408BDE) 0242EE94 00408BFB (0A01A208, 0242EEDC, 00408D8E, 004045F2) 0242EEC4 00408F25 (0A01A208, 00000001, 0242EEDC, 004260B4) 0242EF24 00409149 (0242EF8C, 0242EF90, 00000000, 00403F3D) 0242EFA4 00403FFA (00000000, 0242F03C, FFFFFFFF, 004045AA) 0242EFC4 004045AA (0242F03C, 0A01A0F0, 0242F004, 00404636) 0242EFF4 00404636 (0242F03C, 00000000, 0242F034, 004048A2) 0242F024 004048A2 (0242F03C, 00000000, 00000011, 00404611) 0242F074 00404611 (0A0161B1, 0A0161C2, 0A0161AF, 0A0161C2) 0242F0E4 00409112 (0242F14C, 0242F150, 00000000, 00403F3D) 0242F164 00403FFA (00000000, 0A0161A5, FFFFFFFF, 00404636) 0242F184 004045AA (0A0161A5, 0000000B, 0242F1D4, 0041DAA8) 0242F1B4 00404636 (0A0161A5, 00000000, 0242F1E4, 6102B7DD) 0242F1E4 004048A2 (0A0161A5, 00000000, 00000009, 0041EA1C) 0242F244 0041EB0F (0242F31C, 0A016190, 00000002, 00000000) End of stack trace (more stack frames may be present) And here is my make version and cygwin uname -a GNU Make version 3.79.1, by Richard Stallman and Roland McGrath. Built for i686-pc-cygwin Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Report bugs to <bug-make@gnu.org>. Administrator@ELF1 /cygdrive/d $ uname -a CYGWIN_NT-4.0 ELF1 1.3.3(0.46/3/2) 2001-09-12 23:54 i686 unknown This is a very recent cygwin installation.
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