digitalmars.D.bugs - [Issue 19978] New: D sometimes just crashes on exit with daemon
- d-bugmail puremagic.com (36/36) Jun 16 2019 https://issues.dlang.org/show_bug.cgi?id=19978
https://issues.dlang.org/show_bug.cgi?id=19978 Issue ID: 19978 Summary: D sometimes just crashes on exit with daemon threads Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: critical Priority: P1 Component: druntime Assignee: nobody puremagic.com Reporter: default_357-line yahoo.de Consider the following code: void main() { import core.thread : Thread; with (new Thread({ })) { isDaemon = true; start; } } On Linux, this builds and runs successfully, maybe 99% of the time. But if you run it in a loop: while true; do ./test || break; done You will see that it segfaults after a few seconds. I asked the forum for repros ( https://forum.dlang.org/post/awnslgsogmdixktynjmw forum.dlang.org ), and got successful crashes on these systems: - DMD 2.080.0, Linux 4.18.0-20 x86_64 - DMD 2.086.0, Linux 5.0.0-16-generic x86_64 - LDC2-1.11, Linux 4.14.111 - DMD64 2.086.0, MacOs 10.13.6; Darwin Kernel Version 17.7.0; x86_64 and a failure to reproduce under Windows 10, dmd 2.082.0 and ldc2 1.12.0-beta2. The crashes on MacOs and LDC, effectively excluding backend issues and kernel bugs, strongly hint at a druntime bug. See the forum thread for some backtraces. --
Jun 16 2019