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charset="us-ascii" Content-Transfer-Encoding: quoted-printable I'm running cygwin on baremetal on an Intel i5-750 (4 cores), with 7GB of R= AM and with an up-to-date Windows 10. At any given time during the RAM usage basically flat lines and there is st= ill plenty of free memory left. ________________________________ From: Cygwin on behal= f of Takashi Yano via Cygwin Sent: Saturday, March 2, 2024 4:41 am To: cygwin@cygwin.com Subject: Re: Regression: Cygwin 3.5.1 freezes when launching several mingw = processes in parallel On Fri, 1 Mar 2024 17:48:52 +0000 Kate Deplaix wrote: > Hi, > > Using cygwin 3.6.0-0.66.gc77a5689f7bd I was indeed unable to reproduce th= e issue. Thanks for tesing. > However I'm getting a related but slightly different issue now, where a s= ubprocess randomly (but quite reliably over the whole compilation process) = fails with make -j (works fine with -j1 once again) > > Luckily i was able to make a really small test-case this time: > Using MinGW 11.4.0 with the following test.c file: > > #define UNICODE > #define _UNICODE > > #include > #include > > int main() { > int ret =3D _wsystem(L"x86_64-w64-mingw32-gcc -dumpversion"); > if(ret !=3D 0) printf("FOUND %d\n", ret); > } > > compile using: x86_64_w64-mingw32-gcc ./test.c > and run using: for i in $(seq 1 100) ; do ./a & done Thanks for the test case. I tried this test case, however, I cannot reproduce the second problem, i.e. all 100 processes exited normally. To increase system load, I also tried: #define UNICODE #define _UNICODE #include #include int main(int argc, char *argv[]) { wchar_t buf[1024]; swprintf(buf, 1024, L"x86_64-w64-mingw32-gcc test.c -o %s", argv[1]); int ret =3D _wsystem(buf); if(ret !=3D 0) printf("FOUND %d\n", ret); } and #!/bin/sh for i in $(seq 1 200); do ./a.exe $i & done but, no error was found... How many cpu cores and how much memory does your system have? -- Takashi Yano -- 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 --_000_CWXP265MB13683FE5A5E04646EA8393F7BC5D2CWXP265MB1368GBRP_--