Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.RaiseChangeEvents takes down process on an IO exception #71003
Description
Note, this is in a 6.0 run. But I see no issue that was already fixed.
Console log: 'Microsoft.Extensions.FileProviders.Physical.Tests' from job 6da37b81-3523-4f12-a96c-801644c3d58d workitem 9e894db9-c746-4e6b-8afb-11e12f053fb9 (windows.81.amd64.open.svc) executed on machine a0000OH
...
Unhandled exception. System.UnauthorizedAccessException: Access to the path 'C:\h\w\A36408E4\t\dpomsqxx.ukm\bskgbwzu.5ha' is denied.
at System.IO.FileSystem.GetFinalLinkTarget(String linkPath, Boolean isDirectory) in /_/src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.cs:line 585
at System.IO.FileSystem.ResolveLinkTarget(String linkPath, Boolean returnFinalTarget, Boolean isDirectory) in /_/src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.cs:line 422
at System.IO.FileSystemInfo.ResolveLinkTarget(Boolean returnFinalTarget) in /_/src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.cs:line 170
at Microsoft.Extensions.FileProviders.Physical.FileSystemInfoHelper.GetFileLinkTargetLastWriteTimeUtc(FileInfo fileInfo) in /_/src/libraries/Microsoft.Extensions.FileProviders.Physical/src/Internal/FileSystemInfoHelper.cs:line 56
at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.GetLastWriteTimeUtc() in /_/src/libraries/Microsoft.Extensions.FileProviders.Physical/src/PollingFileChangeToken.cs:line 57
at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.get_HasChanged() in /_/src/libraries/Microsoft.Extensions.FileProviders.Physical/src/PollingFileChangeToken.cs:line 101
at Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.RaiseChangeEvents(Object state) in /_/src/libraries/Microsoft.Extensions.FileProviders.Physical/src/PhysicalFilesWatcher.cs:line 476
at System.Threading.TimerQueueTimer.Fire(Boolean isThreadPool) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Timer.cs:line 673
at System.Threading.TimerQueue.FireNextTimers() in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Timer.cs:line 326
I found #57266, but this is not creating a symbolic link.
Looking at the dump briefly, I see no test running. Is it possible a test completed without unregistering for events -- so if this had not hit access denied, it would have gone nowhere?