On macOS, WKWebView frequent refreshes end up on blank screen

[carloscabanero]

Describe the bug

When running Blink under macOS, the terminal will start to automatically refresh. After a few refreshes (and according to the debug information, there is a limit), we will end up on a blank view.

The expected behavior would be not to crash. And in the worst case scenario, to just keep restarting with no limit.

2022-07-11 16:18:14.464334-0400 Blink[58990:8335838] [Process] 0x11a000640 - [PID=59033] WebProcessProxy::didClose: (web process 0 crash)
2022-07-11 16:18:14.464459-0400 Blink[58990:8335838] [Process] 0x11a000640 - [PID=59033] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=4
2022-07-11 16:18:14.464591-0400 Blink[58990:8335838] [ProcessSuspension] 0x117004c00 - ProcessAssertion: Failed to acquire RBS Background assertion 'ConnectionTerminationWatchdog' for process because PID 0 is invalid
2022-07-11 16:18:14.464702-0400 Blink[58990:8353410] [ProcessSuspension] 0x117004c00 - ProcessAssertion: Failed to acquire RBS assertion 'ConnectionTerminationWatchdog' for process with PID=0, error: (null)
2022-07-11 16:18:14.464822-0400 Blink[58990:8335838] [Process] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59033] WebPageProxy::processDidTerminate: (pid 59033), reason 4
2022-07-11 16:18:14.470022-0400 Blink[58990:8335838] [Loading] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59033] WebPageProxy::dispatchProcessDidTerminate: reason=Crash
2022-07-11 16:18:14.472134-0400 Blink[58990:8353410] [assertion] Error acquiring assertion: 
2022-07-11 16:18:14.472250-0400 Blink[58990:8353410] [ProcessSuspension] 0x117004c60 - ProcessAssertion: Failed to acquire RBS assertion 'WebProcess Background Assertion' for process with PID=59033, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}
2022-07-11 16:18:14.477405-0400 Blink[58990:8335838] [UIFocus] Failed to update focus with context . No additional info available.
2022-07-11 16:18:16.508658-0400 Blink[58990:8335838] [UIFocus] Failed to update focus with context . No additional info available.
2022-07-11 16:18:44.465154-0400 Blink[58990:8335838] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service
2022-07-11 16:19:14.778651-0400 Blink[58990:8335838] [Process] 0x11704c340 - NetworkProcessProxy::didClose (Network Process 0 crash)
2022-07-11 16:19:17.797456-0400 Blink[58990:8335838] [Process] 0x11a001750 - [PID=59119] WebProcessProxy::didClose: (web process 59119 crash)
2022-07-11 16:19:17.797594-0400 Blink[58990:8335838] [Process] 0x11a001750 - [PID=59119] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=4
2022-07-11 16:19:17.797904-0400 Blink[58990:8335838] [Process] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59119] WebPageProxy::processDidTerminate: (pid 59119), reason 4
2022-07-11 16:19:17.802889-0400 Blink[58990:8335838] [Loading] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59119] WebPageProxy::dispatchProcessDidTerminate: reason=Crash
2022-07-11 16:19:17.804543-0400 Blink[58990:8353961] [assertion] Error acquiring assertion: 
2022-07-11 16:19:17.805012-0400 Blink[58990:8353961] [ProcessSuspension] 0x117004180 - ProcessAssertion: Failed to acquire RBS assertion 'ConnectionTerminationWatchdog' for process with PID=59119, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}
2022-07-11 16:19:17.809501-0400 Blink[58990:8353961] [assertion] Error acquiring assertion: 
2022-07-11 16:19:17.809597-0400 Blink[58990:8353961] [ProcessSuspension] 0x117004b40 - ProcessAssertion: Failed to acquire RBS assertion 'WebProcess Background Assertion' for process with PID=59119, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}
2022-07-11 16:19:17.881652-0400 Blink[58990:8335838] [UIFocus] Failed to update focus with context . No additional info available.
2022-07-11 16:19:19.910547-0400 Blink[58990:8335838] [UIFocus] Failed to update focus with context . No additional info available.
2022-07-11 16:19:20.707092-0400 Blink[58990:8335838] [UIFocus] Failed to update focus with context . No additional info available.
2022-07-11 16:19:36.908306-0400 Blink[58990:8335838] [Process] 0x11a000e70 - [PID=59137] WebProcessProxy::didClose: (web process 59137 crash)
2022-07-11 16:19:36.908432-0400 Blink[58990:8335838] [Process] 0x11a000e70 - [PID=59137] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=4
2022-07-11 16:19:36.908693-0400 Blink[58990:8335838] [Process] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59137] WebPageProxy::processDidTerminate: (pid 59137), reason 4
2022-07-11 16:19:36.911997-0400 Blink[58990:8335838] [Loading] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59137] WebPageProxy::dispatchProcessDidTerminate: reason=Crash
2022-07-11 16:19:36.912070-0400 Blink[58990:8335838] [Process] 0x14a074a18 - [pageProxyID=6, webPageID=7, PID=59137] WebPageProxy::tryReloadAfterProcessTermination: process crashed and the client did not handle it, not reloading the page because we reached the maximum number of attempts
2022-07-11 16:19:36.913235-0400 Blink[58990:8354112] [assertion] Error acquiring assertion: 
2022-07-11 16:19:36.917310-0400 Blink[58990:8354112] [ProcessSuspension] 0x117004120 - ProcessAssertion: Failed to acquire RBS assertion 'ConnectionTerminationWatchdog' for process with PID=59137, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}
2022-07-11 16:19:38.592216-0400 Blink[58990:8354112] [assertion] Error acquiring assertion: 
2022-07-11 16:19:38.592303-0400 Blink[58990:8354112] [ProcessSuspension] 0x117004240 - ProcessAssertion: Failed to acquire RBS assertion 'WebProcess Background Assertion' for process with PID=59137, error: Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}
2022-07-11 16:19:38.593710-0400 Blink[58990:8354112] [assertion] Error acquiring assertion: 
2022-07-11 16:19:38.593791-0400 Blink[58990:8354112] [ProcessSuspension] 0x117000180 - ProcessAssertion: Failed to acquire RBS assertion 'GPUProcess Background Assertion' for process with PID=59141, error: Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}
2022-07-11 16:19:38.594215-0400 Blink[58990:8354112] [assertion] Error acquiring assertion: 
2022-07-11 16:19:38.594266-0400 Blink[58990:8354112] [ProcessSuspension] 0x117004300 - ProcessAssertion: Failed to acquire RBS assertion 'WebProcess Suspended Assertion' for process with PID=59137, error: Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}
2022-07-11 16:19:47.798750-0400 Blink[58990:8335838] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service
√√√2022-07-11 16:20:06.909596-0400 Blink[58990:8335838] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service

[larme]

I think blink 14 has similar behavior. I'm not sure if that's memory resource related. From my observation, these kinds of refreshes happen frequently when system's free memory is low

[carloscabanero]

#1247