See strace: 544091 601347 [main] obr 1831 mprotect: mprotect (addr: 0xA00100000, len 65536, prot 0x7) 59 601406 [main] obr 1831 mprotect: 0 = mprotect () 166 601572 [main] obr 1831 mmap: addr 0x0, len 327680, prot 0x3, flags 0x22, fd -1, off 0x0 123 601695 [main] obr 1831 mmap: 0x6FFFFFFB0000 = mmap() 95 601790 [main] obr 1831 mprotect: mprotect (addr: 0x6FFFFFFC0000, len 196608, prot 0x7) 88 601878 [main] obr 1831 mprotect: 0 = mprotect () 255 602133 [main] obr 1831 mmap: addr 0x0, len 393216, prot 0x3, flags 0x22, fd -1, off 0x0 102 602235 [main] obr 1831 mmap: 0x6FFFFFF50000 = mmap() 108 602343 [main] obr 1831 mprotect: mprotect (addr: 0x6FFFFFF60000, len 262144, prot 0x7) 47 602390 [main] obr 1831 mprotect: 0 = mprotect () 245 602635 [main] obr 1831 mmap: addr 0x0, len 458752, prot 0x3, flags 0x22, fd -1, off 0x0 44 602679 [main] obr 1831 mmap: 0x6FFFFFEE0000 = mmap() 46 602725 [main] obr 1831 mprotect: mprotect (addr: 0x6FFFFFEF0000, len 327680, prot 0x7) 39 602764 [main] obr 1831 mprotect: 0 = mprotect () --- Process 3796 (pid: 1831), exception c0000005 at 0000000a00100061 --- Process 3796 (pid: 1831) thread 2928 exited with status 0xc0000005 --- Process 3796 (pid: 1831) exited with status 0xc0000005 Segmentation fault
I still think it's Cygwin's bug. Sent with Proton Mail secure email. ------- Original Message ------- On Wednesday, February 15th, 2023 at 23:33, Corinna Vinschen <corinna-cyg...@cygwin.com> wrote: > On Feb 15 15:31, w6b7rk5yu4mt25v3 via Cygwin wrote: > > > I asked the developer of the interpreter. He said it's OK to use the > > PAGE_SIZE value different than 4096. So I used this dirty hack: > > > > #ifndef CYGWIN > > #define PAGE_SIZE 4096 > > #endif > > > > This means on Cygwin it will use the default PAGE_SIZE defined on limits.h > > (I'm taking advantage of the naming conflict here so I don't have to rename > > PAGE_SIZE to JIT_PAGE_SIZE as suggested by the developer of the > > interpreter). > > > > The result is it's no longer error with "Unable to mprotect" but will > > silently crashed without any error messages printed on the screen. So > > after all, it's Cygwin's quirks here. > > > I still think it's a bug in the code which requires some debugging effort > on your side. > > Having said that, if it's actually a Cygwin bug and you want it fixed, > please provide a simple, self-contained testcase in plain C, with a > minimum of code to reproduce the issue, and which compiles OOTB. > > > Corinna -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
