Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix deadlock when we request a ReJIT due to an inlined method #98400

Merged
merged 2 commits into from
Feb 15, 2024
Merged

Fix deadlock when we request a ReJIT due to an inlined method #98400

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
6dcd3c2
Update jitinterface.cpp
davmason Feb 13, 2024
b838422
Update src/coreclr/vm/jitinterface.cpp
davmason Feb 14, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
33 changes: 23 additions & 10 deletions src/coreclr/vm/jitinterface.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8241,17 +8241,30 @@ void CEEInfo::reportInliningDecision (CORINFO_METHOD_HANDLE inlinerHnd,

if (CORProfilerEnableRejit())
{
// If ReJIT is enabled, there is a chance that a race happened where the profiler
// requested a ReJIT on a method, but before the ReJIT occurred an inlining happened.
// If we end up reporting an inlining on a method with non-default IL it means the race
// happened and we need to manually request ReJIT for it since it was missed.
CodeVersionManager* pCodeVersionManager = pCallee->GetCodeVersionManager();
CodeVersionManager::LockHolder codeVersioningLockHolder;
ILCodeVersion ilVersion = pCodeVersionManager->GetActiveILCodeVersion(pCallee);
if (ilVersion.GetRejitState() != ILCodeVersion::kStateActive || !ilVersion.HasDefaultIL())
ModuleID modId = 0;
mdMethodDef methodDef = mdMethodDefNil;
BOOL shouldCallReJIT = FALSE;

{
davmason marked this conversation as resolved.
Show resolved Hide resolved
// If ReJIT is enabled, there is a chance that a race happened where the profiler
// requested a ReJIT on a method, but before the ReJIT occurred an inlining happened.
// If we end up reporting an inlining on a method with non-default IL it means the race
// happened and we need to manually request ReJIT for it since it was missed.
CodeVersionManager* pCodeVersionManager = pCallee->GetCodeVersionManager();
CodeVersionManager::LockHolder codeVersioningLockHolder;
ILCodeVersion ilVersion = pCodeVersionManager->GetActiveILCodeVersion(pCallee);
if (ilVersion.GetRejitState() != ILCodeVersion::kStateActive || !ilVersion.HasDefaultIL())
{
shouldCallReJIT = TRUE;
modId = reinterpret_cast<ModuleID>(pCaller->GetModule());
methodDef = pCaller->GetMemberDef();
}
davmason marked this conversation as resolved.
Show resolved Hide resolved
}

if (shouldCallReJIT)
{
ModuleID modId = reinterpret_cast<ModuleID>(pCaller->GetModule());
mdMethodDef methodDef = pCaller->GetMemberDef();
_ASSERTE(modId != 0);
_ASSERTE(methodDef != mdMethodDefNil);
ReJitManager::RequestReJIT(1, &modId, &methodDef, static_cast<COR_PRF_REJIT_FLAGS>(0));
}
}
Expand Down
Loading