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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,16 @@ | ||
diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py | ||
index f34a5b4b44..b1d0f1e61e 100644 | ||
--- a/Lib/asyncio/unix_events.py | ||
+++ b/Lib/asyncio/unix_events.py | ||
@@ -369,6 +369,11 @@ class _UnixSelectorEventLoop(selector_events.BaseSelectorEventLoop): | ||
fut.set_result(total_sent) | ||
return | ||
|
||
+ # On 32-bit architectures truncate to 1GiB to avoid OverflowError, | ||
+ # see bpo-38319. | ||
+ if sys.maxsize < 2 ** 32: | ||
+ blocksize = min(blocksize, 2 ** 30) | ||
+ | ||
try: | ||
sent = os.sendfile(fd, fileno, offset, blocksize) | ||
except (BlockingIOError, InterruptedError): |