Bug 155050

The flakiness is different now. It used to be a text failure that was well understood. Now it's timing out.

(In reply to comment #1) > The flakiness is different now. > > It used to be a text failure that was well understood. > > Now it's timing out. (Of course, perhaps the text failure was *not* well understood)

Skipped test on mac-wk2 with <http://trac.webkit.org/projects/webkit/changeset/197703> The test also seems to be crashing intermittently. Filed https://bugs.webkit.org/show_bug.cgi?id=155131

Regardless, it is the same problem. With the entire test suite cruising along, and with the unpredictability of GC, and with some leaks still outstanding, we're clearly keeping some file handles open that we don't need. Fixing leaks is going to be one way out of this mess. Another is: https://bugs.webkit.org/show_bug.cgi?id=154923

(In reply to comment #4) > Regardless, it is the same problem. With the entire test suite cruising > along, and with the unpredictability of GC, and with some leaks still > outstanding, we're clearly keeping some file handles open that we don't need. > > Fixing leaks is going to be one way out of this mess. > > Another is: > https://bugs.webkit.org/show_bug.cgi?id=154923 Whoops - That comment was meant for 155131

Un-skipped test but left marked as flaky in <https://trac.webkit.org/r200392> to allow us to see test results on the flakiness dashboard.

Strangely, hasn't started running on any WK1 bots yet (which is where my enhanced logging is in place) Gripping around the TestExpectations files now...

Odd! LayoutTests$ grep -r intversion-open-in-upgradeneeded.html . | grep -v ChangeLog ./platform/efl/TestExpectations:storage/indexeddb/intversion-open-in-upgradeneeded.html [ Skip ] ./platform/mac-wk2/TestExpectations:webkit.org/b/155050 storage/indexeddb/intversion-open-in-upgradeneeded.html [ Pass Crash Timeout ] So why isn't it running on WK1 bots? :(

(In reply to comment #8) > Odd! > > LayoutTests$ grep -r intversion-open-in-upgradeneeded.html . | grep -v > ChangeLog > ./platform/efl/TestExpectations:storage/indexeddb/intversion-open-in- > upgradeneeded.html [ Skip ] > ./platform/mac-wk2/TestExpectations:webkit.org/b/155050 > storage/indexeddb/intversion-open-in-upgradeneeded.html [ Pass Crash Timeout > ] > > So why isn't it running on WK1 bots? :( It is running on WK1, but it is passing. You can see the test listed in this WK1 LayoutTest log: <https://build.webkit.org/builders/Apple%20El%20Capitan%20Release%20WK1%20(Tests)/builds/5907/steps/layout-test/logs/stdio>

(In reply to comment #9) > (In reply to comment #8) > > Odd! > > > > LayoutTests$ grep -r intversion-open-in-upgradeneeded.html . | grep -v > > ChangeLog > > ./platform/efl/TestExpectations:storage/indexeddb/intversion-open-in- > > upgradeneeded.html [ Skip ] > > ./platform/mac-wk2/TestExpectations:webkit.org/b/155050 > > storage/indexeddb/intversion-open-in-upgradeneeded.html [ Pass Crash Timeout > > ] > > > > So why isn't it running on WK1 bots? :( > > It is running on WK1, but it is passing. You can see the test listed in this > WK1 LayoutTest log: > <https://build.webkit.org/builders/ > Apple%20El%20Capitan%20Release%20WK1%20(Tests)/builds/5907/steps/layout-test/ > logs/stdio> It has no WK1 entries on the flakiness dashboard which - I assumed - shows all results for all bots...?

> It has no WK1 entries on the flakiness dashboard which - I assumed - shows > all results for all bots...? It will only start showing data once the test fails / times out / crashes at least once.

A few things I can see: WK1-mac is, apparently, working great. Release builds sometimes fail with text differences, but never crash Debug builds "crash" - They're all asserts. Example assert: No crash log found for com.apple.WebKit.Databases.Development:81065. stdout: stderr: ASSERTION FAILED: !m_db.m_transactionInProgress /Volumes/Data/slave/yosemite-debug/build/Source/WebCore/platform/sql/SQLiteTransaction.cpp(53) : void WebCore::SQLiteTransaction::begin() 1 0x105e99b60 WTFCrash 2 0x10a2a01f8 WebCore::SQLiteTransaction::begin() 3 0x10a29656e WebCore::IDBServer::SQLiteIDBTransaction::begin(WebCore::SQLiteDatabase&) 4 0x10a27d5ac WebCore::IDBServer::SQLiteIDBBackingStore::beginTransaction(WebCore::IDBTransactionInfo const&) 5 0x10a5cfb15 WebCore::IDBServer::UniqueIDBDatabase::beginTransactionInBackingStore(WebCore::IDBTransactionInfo const&) 6 0x10a61ea5f WebCore::CrossThreadTaskImpl<WebCore::IDBServer::UniqueIDBDatabase, WebCore::IDBTransactionInfo const&>::CrossThreadTaskImpl(WebCore::IDBServer::UniqueIDBDatabase*, void (WebCore::IDBServer::UniqueIDBDatabase::*)(WebCore::IDBTransactionInfo const&), WebCore::IDBTransactionInfo const&)::'lambda'()::operator()() const 7 0x10a61e9cc std::__1::__function::__func<WebCore::CrossThreadTaskImpl<WebCore::IDBServer::UniqueIDBDatabase, WebCore::IDBTransactionInfo const&>::CrossThreadTaskImpl(WebCore::IDBServer::UniqueIDBDatabase*, void (WebCore::IDBServer::UniqueIDBDatabase::*)(WebCore::IDBTransactionInfo const&), WebCore::IDBTransactionInfo const&)::'lambda'(), std::__1::allocator<WebCore::CrossThreadTaskImpl<WebCore::IDBServer::UniqueIDBDatabase, WebCore::IDBTransactionInfo const&>::CrossThreadTaskImpl(WebCore::IDBServer::UniqueIDBDatabase*, void (WebCore::IDBServer::UniqueIDBDatabase::*)(WebCore::IDBTransactionInfo const&), WebCore::IDBTransactionInfo const&)::'lambda'()>, void ()>::operator()() 8 0x10818103a std::__1::function<void ()>::operator()() const 9 0x108f2d125 WebCore::CrossThreadTask::performTask() 10 0x108f2a7a3 WebCore::IDBServer::IDBServer::databaseRunLoop() 11 0x108f27e14 WebCore::IDBServer::IDBServer::databaseThreadEntry(void*) 12 0x105f03379 WTF::createThread(void (*)(void*), void*, char const*)::$_0::operator()() const 13 0x105f0334c std::__1::__function::__func<WTF::createThread(void (*)(void*), void*, char const*)::$_0, std::__1::allocator<WTF::createThread(void (*)(void*), void*, char const*)::$_0>, void ()>::operator()() 14 0x10578184a std::__1::function<void ()>::operator()() const 15 0x105f0209e WTF::threadEntryPoint(void*) 16 0x105f03901 WTF::wtfThreadEntryPoint(void*) 17 0x7fff9441b05a _pthread_body 18 0x7fff9441afd7 _pthread_body 19 0x7fff944183ed thread_start -Windows WK1 debug is seeing the crashes too, but I can't get windows crash logs.

Locally, running: run-webkit-tests storage/indexeddb/intversion-open-in-upgradeneeded.html --child-processes=1 --repeat-each=1000 Causes about a 0.5% crash rate of the DatabaseProcess with this same ASSERT. I might be able to explore from here.

This was timing out in all bot configs for a large span of time, but then around 5/26-5/27 it stopped timing out. There's still *very* frequent text failures like the following: --- /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/storage/indexeddb/intversion-open-in-upgradeneeded-expected.txt +++ /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/storage/indexeddb/intversion-open-in-upgradeneeded-actual.txt @@ -34,8 +34,6 @@ onVersionChange(): db.close() -onBlocked(): - upgradeNeeded2(): db = event.target.result PASS event.newVersion is 3 That might be a test bug. I'll look in to that.

Getting blocked is: 1 - A timing race. 2 - Not what the test is testing. So I'm removing the onblocked handler.

(In reply to comment #14) > This was timing out in all bot configs for a large span of time, but then > around 5/26-5/27 it stopped timing out. > Note: There's actually an expected reason for this. http://trac.webkit.org/changeset/201461 was a *really* important change that potentially affected *so many tests*...

Created attachment 280450 [details] Patch

*** Bug 155131 has been marked as a duplicate of this bug. ***

Created attachment 280450 [details] Patched on https://emp3juice.blog/ https://tubidy.diy/ https://y2mate.diy/