Stack:
[3008:3008:0801/172017.334242:FATAL:thread_restrictions.cc(29)] Check failed: !g_blocking_disallowed.Get().Get(). Function marked as blocking was called from a scope that disallows blocking! If this task is running inside the TaskScheduler, it needs to have MayBlock() in its TaskTraits. Otherwise, consider making this blocking work asynchronous or, as a last resort, you may use ScopedAllowBlocking (see its documentation for best practices).
#0 0x5bef0223691c base::debug::StackTrace::StackTrace()
#1 0x5bef0218f4f0 logging::LogMessage::~LogMessage()
#2 0x5bef02209a56 base::AssertBlockingAllowed()
#3 0x5bef0223bebe base::PathExists()
#4 0x5bef01f07bb7 component_updater::CrOSComponentManager::IsRegistered()
#5 0x5bef00bbe907 crostini::CrostiniManager::MaybeUpgradeCrostini()
#6 0x5bef00d24c22 chromeos::UserSessionManager::FinalizePrepareProfile()
#7 0x5bef00d248ae chromeos::UserSessionManager::PrepareTpmDeviceAndFinalizeProfile()
#8 0x5beeff4bb2d8 _ZN4base8internal7InvokerINS0_9BindStateIMN2ui14GbmSurfacelessEFvPNS4_12PendingFrameEEJNS_7WeakPtrIS4_EES6_EEEFvvEE7RunOnceEPNS0_13BindStateBaseE
#9 0x5bef022596eb base::debug::TaskAnnotator::RunTask()
#10 0x5bef02197c56 base::MessageLoop::RunTask()
#11 0x5bef02198162 base::MessageLoop::DoWork()
#12 0x5bef022551c9 base::MessagePumpLibevent::Run()
#13 0x5bef02197621 base::MessageLoop::Run()
#14 0x5bef021c4a16 base::RunLoop::Run()
#15 0x5bef01d74b58 ChromeBrowserMainParts::MainMessageLoopRun()
#16 0x5beeffd553f4 content::BrowserMainLoop::RunMainMessageLoopParts()
#17 0x5beeffd583c3 content::BrowserMainRunnerImpl::Run()
#18 0x5beeffd5121d content::BrowserMain()
#19 0x5bef01d617df content::ContentMainRunnerImpl::Run()


CL:
https://chromium-review.googlesource.com/c/chromium/src/+/1144591