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From: "zadeck at naturalbridge dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/31840] New: race condition in makefiles Date: Sat, 05 May 2007 12:54:00 -0000 [thread overview] Message-ID: <bug-31840-11013@http.gcc.gnu.org/bugzilla/> (raw) I have not tried this on a single core, but on 2 or more core machines, a bootstrap will fail if you issue the following commands: make clean make -j4 This assumes that the bootstrap has been built at least once before the make clean. When it fails, it can be restarted with make -j4 and it will most times run to conclusion. Builds also sometimes fail going from one stage to the next, but this may be the same problem. I know that this fails in at r124381 and has been doing this for at least a week or so. I have not tried this on a single core machine, i do not use higher than j2 on those and the problem does not seem to arise with j1 or j2. my configure string is generally --enable-languages=c,c++,fortran --disable-multilib (if appropriate) -- Summary: race condition in makefiles Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: zadeck at naturalbridge dot com GCC build triplet: same GCC host triplet: ppc, x86-64, ia-32 on linux GCC target triplet: same http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31840
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