Bug 207115 - REGRESSION: [ iOS ] 20 iOS api tests are crashing after system update
Summary: REGRESSION: [ iOS ] 20 iOS api tests are crashing after system update
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-02-03 07:50 PST by Truitt Savell
Modified: 2020-02-11 09:15 PST (History)
4 users (show)

See Also:

Attachments
Crash Log (99.55 KB, text/plain)
2020-02-03 13:38 PST, Truitt Savell 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Truitt Savell 2020-02-03 07:50:39 PST 
20 iOS api tests are crashing after system update

These tests are crashing all with "Child process terminated with signal 11: Segmentation fault"

Stdio:
https://build.webkit.org/builders/Apple%20iOS%2013%20Simulator%20Release%20WK2%20%28Tests%29/builds/2341/steps/run-api-tests/logs/stdio

These are very flaky crashes and we are seeing 7-12 crashes fairly consistently. 

The only one I am able to reproduce reliably with iterations is:

TestWebKitAPI.KeyboardInputTests.SupportsImagePaste
Comment 1 Radar WebKit Bug Importer 2020-02-03 07:50:53 PST 
<rdar://problem/59110543>
Comment 2 Truitt Savell 2020-02-03 10:03:54 PST 
I am able to get this to fail as far back as 251002
Comment 3 Truitt Savell 2020-02-03 10:13:44 PST 
TestWebKitAPI.ProcessSwap.BasicWithAsyncSchemeHandler
TestWebKitAPI.KeyboardInputTests.SupportsImagePaste
TestWebKitAPI.ProcessSwap.CrossOriginBlobNavigation
TestWebKitAPI.WebKit.DoAfterNextStablePresentationUpdateAfterCrash
TestWebKitAPI.WebKit.WKHTTPCookieStore
TestWebKitAPI.ResourceLoadStatistics.EnableDisableITP
TestWebKitAPI.WebKit.GeolocationPermission
TestWebKitAPI.PreferredContentMode.DesktopModeUsesNativeViewportByDefault
TestWebKitAPI.WebKit.WebsiteDataStoreCustomPathsWithPrewarming
TestWebKitAPI.KeyboardInputTests.ModifyInputAssistantItemBarButtonGroups
TestWebKitAPI.WebKit.LoadInvalidURLRequest
TestWebKitAPI.WKWebViewCloseAllMediaPresentations.ElementFullscreen
TestWebKitAPI.PreferredContentMode.DesktopModeOnPhone
TestWebKitAPI.WKWebViewFindString.DoNotUpdateMatchIndexWhenGivenNoIndexChangeOption
TestWebKitAPI.URLSchemeHandler.Exceptions
TestWebKitAPI.WKWebViewEditActions.NestedListInsertion
TestWebKitAPI.WebKit.NetworkProcessRelaunchOnLaunchFailure
TestWebKitAPI.ProcessSwap.ServerRedirect
TestWebKitAPI.DeviceOrientation.RememberPermissionForSession
Comment 4 Truitt Savell 2020-02-03 13:38:29 PST 
Created attachment 389558 [details]
Crash Log
Comment 5 Jonathan Bedard 2020-02-04 08:10:03 PST 
Looking at the code, my guess is that we someone have a test somehow not associated with a file or a line number. If we have a reliable reproduction, I can probably fix it. Building now to test.
Comment 6 Jonathan Bedard 2020-02-04 11:51:51 PST 
I can fix the crash, but the crash is just surprising another error, likely an uncaught C++ exception (for TestWebKitAPI.KeyboardInputTests.SupportsImagePaste), but I haven't run all of the effected tests.
Comment 7 Jonathan Bedard 2020-02-11 09:15:40 PST 
Wenson fixed this in https://bugs.webkit.org/show_bug.cgi?id=207525.