Bug 20999 – autotester for Darwin_64_64 randomly times out and fails

What it should do instead is retry it at least once. This one passed when I manually deprecated it so it would retry. Here's the log: ------------------------------------------------- HOST_DC=/Users/braddr/sandbox/at-client/release-build/dmd-2.079.0/osx/bin/dmd make -C src -f posix.mak auto-tester-build ENABLE_RELEASE=1 posix.mak:75: ========== Use HOST_DMD instead of HOST_DC ========== /Users/braddr/sandbox/at-client/release-build/dmd-2.079.0/osx/bin/dmd -of../generated/build -g build.d Warning: Syncing file access because of OSX! ../generated/build HOST_DMD="/Users/braddr/sandbox/at-client/release-build/dmd-2.079.0/osx/bin/dmd" CXX="c++" OS=osx BUILD=release MODEL=64 AUTO_BOOTSTRAP="" DOCDIR="" STDDOC="" DOC_OUTPUT_DIR="" MAKE="make" --called-from-make auto-tester-build (TX) VERSION (TX) SYSCONFDIR (DC) BACKEND ==== Toolchain Information ==== SYSTEM (uname): Darwin macair 15.6.0 Darwin Kernel Version 15.6.0: Thu Jun 21 20:07:40 PDT 2018; root:xnu-3248.73.11~1/RELEASE_X86_64 x86_64 MAKE (make): GNU Make 3.81 Copyright (C) 2006 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. This program built for i386-apple-darwin11.3.0 SHELL (/bin/sh): GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15) Copyright (C) 2007 Free Software Foundation, Inc. HOST_DMD (/Users/braddr/sandbox/at-client/release-build/dmd-2.079.0/osx/bin/dmd): DMD64 D Compiler v2.079.0 Copyright (C) 1999-2018 by The D Language Foundation, All Rights Reserved written by Walter Bright HOST_CXX (c++): Apple LLVM version 8.0.0 (clang-800.0.42.1) Target: x86_64-apple-darwin15.6.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin ld (ld): @(#)PROGRAM:ld PROJECT:ld64-274.2 configured to support archs: i386 x86_64 x86_64h armv6 armv7 armv7s armv7m armv7k arm64 (tvOS) LTO support using: LLVM version 8.0.1 gdb (gdb): <Not available> ==== Toolchain Information ==== (DC) LEXER (TX) DMD_CONF (GIT) DLANG/TOOLS (CXX) CXX-FRONTEND (RUN) checkwhitespace (DC) DMD (DMD) CXX-UNITTEST (RUN) CXX-UNITTEST Success /Applications/Xcode.app/Contents/Developer/usr/bin/make -C src -f posix.mak all posix.mak:75: ========== Use HOST_DMD instead of HOST_DC ========== ../generated/build HOST_DMD="/Users/braddr/sandbox/at-client/release-build/dmd-2.079.0/osx/bin/dmd" CXX="c++" OS=osx BUILD=release MODEL=64 AUTO_BOOTSTRAP="" DOCDIR="" STDDOC="" DOC_OUTPUT_DIR="" MAKE="/Applications/Xcode.app/Contents/Developer/usr/bin/make" --called-from-make dmd timed out after 1800 seconds, step failed

This sucks, it looks like it's hitting a deadlock right away. Might indicate a real race condition somewhere. I think in case of timeout, we should print the stack trace of all threads/processes, or something like that.

(In reply to Vladimir Panteleev from comment #1) > This sucks, it looks like it's hitting a deadlock right away. Might indicate > a real race condition somewhere. I think in case of timeout, we should print > the stack trace of all threads/processes, or something like that. IIRC it's a file locking issue somewhere inside phobos/the system library triggered by the second invocation of `build.d`. I implemented a workaround when we finalized the transition to `build.d` which apparently stopped working some time ago. I'll try to find a better solution.

Does this still happen?

The Auto-tester itself has been taken down.