http://d.puremagic.com/issues/show_bug.cgi?id=7149
Summary: Segfault on Array Append from Multiple Threads in GDC and LDC: Race Condition? Product: D Version: D2 Platform: Other OS/Version: Windows Status: NEW Severity: critical Priority: P2 Component: druntime AssignedTo: nob...@puremagic.com ReportedBy: dsim...@yahoo.com --- Comment #0 from David Simcha <dsim...@yahoo.com> 2011-12-21 20:49:31 PST --- import core.thread; void main() { auto t = new Thread(&doIt); t.start(); doIt(); } void doIt() { while(1) { int[] arr1, arr2; double[] arr3; foreach(i; 0..10_000) { arr1 ~= 1; arr2 ~= 2; arr3 ~= 3; } } } This code segfaults on both GDC (https://bitbucket.org/goshawk/gdc/issue/295/null-pointer-deref-in-_d_arrayappendctp) and LDC (https://github.com/ldc-developers/ldc/issues/56). It works on DMD or of doIt() is only called from one thread. Since this is broken on both GDC and LDC it's worth having a bug report in the main druntime database. My gut feeling is that there's a concurrency bug that's triggered by some compiler optimization that GDC and LDC do but DMD doesn't do. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------