On Monday 25 of July 2016 10:27:30 Thiago Macieira wrote: > On segunda-feira, 25 de julho de 2016 08:51:36 PDT Thiago Macieira wrote: > > On segunda-feira, 25 de julho de 2016 14:07:04 PDT Jędrzej Nowacki wrote: > > > Ugh I haven't seen link.exe crashing, but in case of moc I have > > > impression > > > that it is a software problem. I remember that first time I have seen it > > > I > > > was quite surprised, but now it is quite common and it happens mostly > > > (only) on OSX (Clang miss-compilation?). If it would be memory then I > > > would > > > expect to see compiler crashing more often and I have experienced it > > > maybe > > > once... > > > > > > Any other idea what can go wrong or what can be checked? > > > > The fact that it is consitently crashing on moc indicates the problem is > > actually moc or the compiler. You're also right that most of the crashes > > are on macOS. I can't remember if I've seen it on other OSes. This > > link.exe crash is a one-off and I haven't seen others. > > > > Let's pay attention of what crashes and where. But we'll need to reproduce > > this in order to debug it. > > tst_qdir.exe crashed on Windows, on Qt 5.6: > > A crash occurred in C:\Users\qt\work\qt\qtbase\tests\auto\corelib\io\qdir > \release\tst_qdir.exe. > Function time: 2728ms Total time: 2731ms > > Exception address: 0x00007FF8DB7367B4 > Exception code : 0xc0000005 > PASS : tst_QDir::entryList(Sorting QDir::Type | QDir::DirsFirst) > PASS : tst_QDir::entryList(Sorting QDir::Size) > PASS : tst_QDir::entryList(Sorting QDir::Size | QDir::Reversed) > SKIP : tst_QDir::entryListTimedSort() /bin/touch not found > tst_qdir.cpp(869) : failure location > PASS : tst_QDir::entryListSimple(data2) > PASS : tst_QDir::entryListSimple(simple dir) > PASS : tst_QDir::entryListSimple(simple dir with slash) > Nearby symbol : DllUnregisterServer > > Stack: > # 1: QTest::toString() - 0x00007FF8DEC08CD0 > # 2: UnhandledExceptionFilter() - 0x00007FF8E4001AD0 > # 3: TpDbgDumpHeapUsage() - 0x00007FF8E6D01BE0 > # 4: TpDbgDumpHeapUsage() - 0x00007FF8E6D01BE0 > # 5: memset() - 0x00007FF8E6C95140 > # 6: _C_specific_handler() - 0x00007FF8E6C82800 > # 7: wcstok_s() - 0x00007FF8E6C8D8C0 > # 8: _chkstk() - 0x00007FF8E6C93E70 > # 9: RtlRaiseException() - 0x00007FF8E6C53920 > # 10: KiUserExceptionDispatcher() - 0x00007FF8E6C93060 > # 11: DllUnregisterServer() - 0x00007FF8DB7097B0 > # 12: DllUnregisterServer() - 0x00007FF8DB7097B0 > # 13: DllUnregisterServer() - 0x00007FF8DB7097B0 > # 14: DllGetActivationFactory() - 0x00007FF8DC9D1860 > # 15: DllGetActivationFactory() - 0x00007FF8DC9D1860 > # 16: DllGetActivationFactory() - 0x00007FF8DC9D1860 > # 17: DllGetActivationFactory() - 0x00007FF8DC9D1860 > # 18: DllGetActivationFactory() - 0x00007FF8DC9D1860 > # 19: SwMemFree() - 0x00007FF8E3E29770 > # 20: SwMemFree() - 0x00007FF8E3E29770 > # 21: QueryProtectedPolicy() - 0x00007FF8E3F45C80 > # 22: RtlGetActiveActivationContext() - 0x00007FF8E6C1C6B0 > # 23: RtlFreeUnicodeString() - 0x00007FF8E6C37100 > # 24: BaseThreadInitThunk() - 0x00007FF8E44B13B0 > # 25: RtlUserThreadStart() - 0x00007FF8E6C15410 > > http://testresults.qt.io/coin/integration/qt/qtbase/tasks/ > 1469463068.thrift_bin
tst_qdir is known to be "ugly" it was backlisted for months and probably re- added https://bugreports.qt.io/browse/QTBUG-50835 recently. The bug mentioned CI load, we see increased failure rate when the machinery is over a bigger load (~140 vms), but there are always more or less the same tests failing. So my interpretation is that tests/qt has a race condition that is exposed if IO gets slower. CPU and RAM are reserved separately without overallocation for every machine, so they do not overlap too much*. So let's concentrate on code / apps that should be rock solid which are compilers, linkers and such. Cheers, Jędrek *CPU reservation is done in Mhz instead of cores, which may cause problems we try different tricks to enforce CPU affinity, but they are just "hints" to the VSphere scheduler. _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
