- Count number of crashes before Analytics get initialized and report them as DelayedCrashCount field of the Editor summary session event.
#rb Jamie.Dale
[CL 15128718 by Patrick Laflamme in ue5-main branch]
- Prevented CrashReportClient from serializing the CrashContext to the memory buffer if it was already serialized once.
- Increased the default space reserved by memory buffer used to serialize the crash context from 32K to 128K because serializing the crash context of 'debug crash' command line in Editor uses up to 112K.
- Cleared the memory buffer before serializing the CrashContext in case it was serialized more than once preventing the internal buffer to grow needlessly. Also, the XML reader being limited, would only read the first one written, ignoring further and more recent ones appended.
#rb Johan.Berg
[CL 15037279 by Patrick Laflamme in ue5-main branch]
- Fixed the application title, getting it from the engine version rather than hardcoding it.
#rb Francis.Hurteau
[CL 13747857 by Patrick Laflamme in ue5-main branch]
- Implemented a special logger inside CrashReportClientEditor to capture and save important events such as crash reporting (along with the CrashGUID)
- When CrashReportClientEditor sends all the Editor summary events, if an error was detected in the session being sent, the mini-log for that session is attached to the analytic event.
#rb Chris.Gagnon, Jamie.Dale
#lockdown cristina.riverun
#ROBOMERGE-SOURCE: CL 12935952 in //UE4/Release-4.25/... via CL 12935970 via CL 12935996
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v682-12900288)
[CL 12936020 by patrick laflamme in Main branch]
- Added code to the Editor to detect and report when CrashReportClientEditor exited unexpectedly. (MonitorExceptCode 777005 is set in the Editor session summary event)
- Added a retrial loop to CrashReportClientApp to retry opening the the handle on the Editor process if the first time fails.
#rb Jamie.Dale
#lockdown cristina.riverun
#ROBOMERGE-SOURCE: CL 12878012 in //UE4/Release-4.25/... via CL 12878014 via CL 12878016
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v681-12776863)
[CL 12878017 by patrick laflamme in Main branch]
Details:
The 4.24.3 analytics shows many unexplained exit codes, 23 647 at the moment. Normally, the Editor will exit with code 0 if everything when well, 3 or 1 if it gracefully handled a crash, 255 it was aborted. But we also see may others like the following predominent cases below:
-1073741819 => STATUS_ACCESS_VIOLATION => 8081 cases
-1073740791 => STATUS_STACK_BUFFER_OVERRUN => 7581 cases
-1073740771 => STATUS_FATAL_USER_CALLBACK_EXCEPTION => 5357 cases
On Windows, the crash reporting system should catch and report STATUS_ACCESS_VIOLATION and then exit with code 3 (as the error was handled). For example, if you add a null pointer dereference(STATUS_ACCESS_VIOLATION) in the code, the crash reporter handle it and the Editor exit with code 3. Just like if you enter 'debug crash' console command, the editor gracefully handle the error and exit with code 3. But if you move the null pointer dereference in the crash handler thread itself, the error is not handled and the Editor exits with code STATUS_ACCESS_VIOLATION. This hints that our crash reporting thread is likely crashing in the wild. It would be useful to isolate those cases from the other cases and keep count of how many times this happens.
#jira UE-91803 - Analytics hints that crash reporting and crash handling crashes themselves.
#rb Jamie.Dale
#lockdown cristina.riverun
#ROBOMERGE-SOURCE: CL 12695027 in //UE4/Release-4.25/... via CL 12695062 via CL 12695098
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v676-12543919)
[CL 12695136 by patrick laflamme in Main branch]
#jira UE-91493 - CrashReportClientEditor may send a report owned by another concurrent instance losing the exit code in the process
#rb Jamie.Dale
#ROBOMERGE-SOURCE: CL 12598059 in //UE4/Release-4.25/... via CL 12598060 via CL 12598062
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v675-12543919)
[CL 12598063 by patrick laflamme in Main branch]
#jira UE-91318 - Events were sent from Crash Reporter after Editor Usage Data is disabled.
#rb none
#lockdown cristina.riveron
#ROBOMERGE-SOURCE: CL 12489133 in //UE4/Release-4.25/... via CL 12489135 via CL 12489146
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v673-12478461)
[CL 12489149 by patrick laflamme in Main branch]
- Fixed crash report client editor to prevent sending any usage data.
#rb Jamie.Dale
#lockdown cristina.riveron
#ROBOMERGE-SOURCE: CL 12489019 in //UE4/Release-4.25/... via CL 12489022 via CL 12489029
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v673-12478461)
[CL 12489031 by patrick laflamme in Main branch]
#jira none
#rb trivial
#ROBOMERGE-SOURCE: CL 12380556 in //UE4/Release-4.25/... via CL 12380573
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v671-12333473)
[CL 12381193 by patrick laflamme in Main branch]
- Modified the Editor session to support lockless logging and corresponding analysis for concurrent events.
- Added null check EditorSessionSummaryWriter::LowDriveSpaceDetected() to prevent accessing a null session.
- Fixed CrashReportClient that could use the analytic provider outside of init/shutdow
- Fixed IdleTime reported that could be buggy if Slate did not register any interaction before a crash occurs.
#jira UE-90719 - FPlatformMisc::RequestExit() can corrupt the EditorSessionSummaryWriter
#rb Jamie.Dale
#ROBOMERGE-SOURCE: CL 12350899 in //UE4/Release-4.25/... via CL 12350910
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v671-12333473)
[CL 12350942 by patrick laflamme in Main branch]
- Ensured the data is fully written and read to/form the pipe between the Editor and CrashReporter.
- Refactored the code sending MTFB to send it as soon as possible
- Added some special exit code to detect when the Editor is still running or the exit code is unknown when the summary event is sent.
#rb Sebastian.Nordgren, Johan.Berg
#jira UE-90733 - Editor summary event may not be sent as expected because CrashReportClient may not consume the pipe data
#ROBOMERGE-SOURCE: CL 12216180 in //UE4/Release-4.25/... via CL 12216189
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v662-12191386)
[CL 12216227 by patrick laflamme in Main branch]
When creating portable callstack for the crash reports a number of stack frames should be skipped, corresponding to the crash collecting code itself. This value was applied to wrong end of the callstack.
#jira UE-89885
#rb stefan.boberg
#ROBOMERGE-SOURCE: CL 12000209 in //UE4/Release-4.25/... via CL 12000773
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v656-11643781)
[CL 12000982 by johan berg in Main branch]
- Added the ability to copy and restore a live session, preventing the need to archive it in first place, making the server exist fast (releasing the session lock very quickly) before showing the crash UI and before the next Editor instance could starts.
Details:
This bug could manifest if various ways. An issue causing this bug was fixed in 11252374. This bug can also be observed if the crash reporting process doesn't release its lock on the crashed session quickly. Archiving a session may takes several minutes (depending on the session size) and while a session is archiving, its database is locked and cannot be restored until the archiving process complets. When the Editor reboots after a crash, it searches for a session to recover, but skip over any session that is mounted/locked assuming the session is concurrently used by a concurrent Editor process, potentially preventing it from restoring. The optimal way to work around this problem is to skip the archiving step. Instead, the live session is never archived (saving a copy), which allows the recovery service to shutdown and release the session lock very quickly ensuring that the session will be unlocked when the Editor restarts. On Editor start, it a crashed session is found and the user decides to restore it, the live session is copied into a new live session.
This changelist also affect those other jira in the following ways:
#jira UE-87899 - Disaster recovery prevents showing the crash reporting UI in a timely manner if the session is large
- This CL changes execution order to shut down the recovery service ASAP to release the lock, but the optimization above make it super fast, so the UI should always be shown in a timely manner.
#jira UE-87927 - Disaster Recovery doesn't restore a crash from a restored session
- This CL ensures the recovery service release the session lock faster than the next instance of the Editor can start.
#jira UE-87900 - Disaster Recovery stops recording transactions if the UDP transport layer restarts or auto-repair
#jira UE-88517 - Concert Log Spam - (ConcertKeepAlive) discarded
- This CL fixes an issues with endpoints timeout logic.
#jira UE-81049 - Clean up the DisasterRecovery Intermediate directory
- This CL added code to clean up the intermediate directory left over by crashed client.
#rb Francis.Hurteau
#ROBOMERGE-SOURCE: CL 11632069 in //UE4/Release-4.25/... via CL 11632084
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v655-11596533)
[CL 11632094 by patrick laflamme in Main branch]
- Fixed CrashReportClient using the analytics provider without checking if it is available first.
#jira UE-89414
#rb Chris.Gagnon
#lockdown cristina.riveron
#ROBOMERGE-SOURCE: CL 11590231 in //UE4/Release-4.24/... via CL 11590232 via CL 11590234
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v654-11333218)
[CL 11590237 by cristina riveron in Main branch]
- Fixed disaster recovery remote endpoint timeout set to zero, preventing it from re-registering with MessageBus when an error occurred (like the socket disconnected).
#jira UE-87899 - Disaster recovery prevents showing the crash reporting UI in a timely manner if the session is large
- Fixed the crash reporter app to display the UI (asking the user to send the bug report) before shutting down the recovery service.
- Renamed the field FDisasterRecoveryInfo::Version into FDisasterRecoveryInfo::Revision because revision is more accurate for the field.
#rb Jamie.Dale
Edigrated 11250824 from Dev-VirtualProduction.
#ROBOMERGE-SOURCE: CL 11515425 in //UE4/Release-4.25/... via CL 11515515
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v654-11333218)
[CL 11577491 by patrick laflamme in Main branch]
