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

[release/8.0-staging] handle case of Proc Index > MAX_SUPPORTED_CPUS #109386

Merged
merged 3 commits into from
Nov 6, 2024
Merged

[release/8.0-staging] handle case of Proc Index > MAX_SUPPORTED_CPUS #109386

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
3a0683e
handle case of Proc Index > MAX_SUPPORTED_CPUS
mangod9 Oct 28, 2024
7706ee3
PR feedback
mangod9 Oct 29, 2024
fd5362b
Update comment
mangod9 Oct 30, 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
12 changes: 10 additions & 2 deletions src/coreclr/gc/gc.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6421,7 +6421,11 @@ class heap_select
if (GCToOSInterface::CanGetCurrentProcessorNumber())
{
uint32_t proc_no = GCToOSInterface::GetCurrentProcessorNumber();
proc_no_to_heap_no[proc_no] = (uint16_t)heap_number;
// For a 32-bit process running on a machine with > 64 procs,
// even though the process can only use up to 32 procs, the processor
// index can be >= 64; or in the cpu group case, if the process is not running in cpu group #0,
// the GetCurrentProcessorNumber will return a number that's >= 64.
proc_no_to_heap_no[proc_no % MAX_SUPPORTED_CPUS] = (uint16_t)heap_number;
}
}

Expand All @@ -6443,7 +6447,11 @@ class heap_select
if (GCToOSInterface::CanGetCurrentProcessorNumber())
{
uint32_t proc_no = GCToOSInterface::GetCurrentProcessorNumber();
int adjusted_heap = proc_no_to_heap_no[proc_no];
// For a 32-bit process running on a machine with > 64 procs,
// even though the process can only use up to 32 procs, the processor
// index can be >= 64; or in the cpu group case, if the process is not running in cpu group #0,
// the GetCurrentProcessorNumber will return a number that's >= 64.
int adjusted_heap = proc_no_to_heap_no[proc_no % MAX_SUPPORTED_CPUS];
// with dynamic heap count, need to make sure the value is in range.
if (adjusted_heap >= gc_heap::n_heaps)
{
Expand Down
Loading