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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.11.2
Affects Version/s: 5.12
Component/s: Core: Date/Time
Labels:
None
Environment:
macos 10.13.4 (latest non-beta), xcode 9.4.1 (latest non-beta)

Platform/s:

macOS
Commits:
8dd40e9b0931d2698ff2ee3a655aab8b4947dae8

Description

build: http://coin/coin/integration/qt/qt5/tasks/web_qt_qt5_1533800463809
failing log: http://coin/coin/api/results/qt/qtbase/d9ea8e8637fd900cd35732cbc5d66744429c8b35/MacOSMacOS_10_13x86_64MacOSMacOS_10_13x86_64Clangqtci-macos-10.13-x86_64-feec42DeveloperBuild_Debug_NoFramework_AddressSanitizer/2a48a3b7dcb9652b1532a3ad14de7580b5b9b1ee/test_1533969514/log.txt.gz

agent:2018/08/09 11:50:16 build.go:187: QFATAL : tst_QTimeZone::stressTest() ASSERT: "nextSecs <= endSecs - year || nextSecs == tranSecs" in file tools/qtimezoneprivate_mac.mm, line 250

Note: this CI build is "experimental", because it has AddressSanitizer enabled. However, it is perfectly reproducible on my machine both with and without ASAN:

(lldb) r
Process 85321 launched: './tst_qtimezone' (x86_64)
********* Start testing of tst_QTimeZone *********
Config: Using QtTest library 5.12.0, Qt 5.12.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by Clang 9.1.0 (clang-902.0.39.2) (Apple))
2018-08-09 10:55:56.646416+0200 tst_qtimezone[85321:3981501] [qt.test.enter] tst_QTimeZone::initTestCase()
2018-08-09 10:55:56.646782+0200 tst_qtimezone[85321:3981501] [qt.test.pass] tst_QTimeZone::initTestCase()
2018-08-09 10:55:56.646855+0200 tst_qtimezone[85321:3981501] [qt.test.enter] tst_QTimeZone::stressTest()
2018-08-09 10:55:56.654231+0200 tst_qtimezone[85321:3981501] ASSERT: "nextSecs <= endSecs - year || nextSecs == tranSecs" in file /Users/erik/dev/qt5-dev/qtbase/src/corelib/tools/qtimezoneprivate_mac.mm, line 250
2018-08-09 10:55:56.654274+0200 tst_qtimezone[85321:3981501] [qt.test.fail] tst_QTimeZone::stressTest()
Received a fatal error.
Totals: 1 passed, 1 failed, 0 skipped, 0 blacklisted, 9ms
********* Finished testing of tst_QTimeZone *********
Process 85321 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
    frame #0: 0x00007fff66d0bb66 libsystem_kernel.dylib`__pthread_kill + 10
libsystem_kernel.dylib`__pthread_kill:
->  0x7fff66d0bb66 <+10>: jae    0x7fff66d0bb70            ; <+20>
    0x7fff66d0bb68 <+12>: movq   %rax, %rdi
    0x7fff66d0bb6b <+15>: jmp    0x7fff66d02ae9            ; cerror_nocancel
    0x7fff66d0bb70 <+20>: retq   
Target 0: (tst_qtimezone) stopped.
(lldb) frame select 6
frame #6: 0x0000000100349ed3 libQt5Core_debug.5.dylib`QtNS::QMacTimeZonePrivate::previousTransition(this=0x0000000100f13b70, beforeMSecsSinceEpoch=-5351616000000) const at qtimezoneprivate_mac.mm:250
   247 	        if (nextDate != nil) {
   248 	            NSTimeInterval lateSecs = nextSecs;
   249 	            nextSecs = [nextDate timeIntervalSince1970];
-> 250 	            Q_ASSERT(nextSecs <= endSecs - year || nextSecs == tranSecs);
   251 	            /*
   252 	              We're looking at the first ever transition for our zone, at
   253 	              nextSecs (and our zone *does* have at least one transition).  If
(lldb) p nextSecs
(NSTimeInterval) $0 = 41468400
(lldb) p endSecs
(QtNS::qint64) $1 = -5351616000
(lldb) p year
(const int) $2 = 31622400
(lldb) p tranSecs
(NSTimeInterval) $3 = -1855958961
(lldb) po nextDate
1971-04-25 23:00:00 +0000
(lldb) po [NSDate dateWithTimeIntervalSince1970:lowerBound]
1970-01-01 00:00:00 +0000
(lldb) po [m_nstz nextDaylightSavingTimeTransitionAfterDate:[NSDate dateWithTimeIntervalSince1970:lowerBound]]
1971-04-25 23:00:00 +0000
(lldb) p lowerBound
(NSTimeInterval) $8 = 2.2250738585072014E-308
(lldb) p/x tranSecs
(NSTimeInterval) $10 = 0xc1dba7ebec400000
(lldb) p/x endSecs
(QtNS::qint64) $11 = 0xfffffffec104d200