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Fix segfault in GC standalone large pages emulation mode (segments path) #127763

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Merged
janvorli merged 4 commits into from
Jun 17, 2026
+7 −0
Merged

Fix segfault in GC standalone large pages emulation mode (segments path) #127763

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3054c14
Fix GC standalone large pages emulation in segments path
cshung May 5, 2026
3884ff3
Revert "Fix GC standalone large pages emulation in segments path"
cshung Jun 14, 2026
973587c
Disable large page emulation on segments path
cshung Jun 14, 2026
f014c1f
Merge branch 'main' into fix/gc-standalone-largepages-segments
cshung Jun 16, 2026
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7 changes: 7 additions & 0 deletions src/coreclr/gc/init.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -915,6 +915,13 @@ HRESULT gc_heap::initialize_gc (size_t soh_segment_size,
return E_FAIL;
}
#else //USE_REGIONS
// Large page emulation mode is not supported on the segments path.
// Silently disable large pages when emulation is requested.
if (large_pages_emulation_mode_p)
{
use_large_pages_p = false;
large_pages_emulation_mode_p = false;
}
bool separated_poh_p = use_large_pages_p &&
heap_hard_limit_oh[soh] &&
(GCConfig::GetGCHeapHardLimitPOH() == 0) &&
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