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gh-82500: Fix asyncio sendfile overflow on 32bit#107056

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gvanrossum merged 5 commits intopython:mainfrom
bdraco:sendfile_overflow_32bit
Jul 23, 2023
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gh-82500: Fix asyncio sendfile overflow on 32bit#107056
gvanrossum merged 5 commits intopython:mainfrom
bdraco:sendfile_overflow_32bit

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@bdraco bdraco commented Jul 22, 2023 •
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asyncio has the same issue

This is the same patch we have been running for a while with Home Assistant https://raw.githubusercontent.com/home-assistant/docker-base/master/python/3.11/asynctio_unix_events.patch

related issue and trace home-assistant/supervisor#4375

File "/usr/local/lib/python3.11/site-packages/aiohttp/web_protocol.py", line 458, in _handle_request
   reset = await self.finish_response(request, resp, start_time)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.11/site-packages/aiohttp/web_protocol.py", line 611, in finish_response
   await prepare_meth(request)
 File "/usr/local/lib/python3.11/site-packages/aiohttp/web_fileresponse.py", line 286, in prepare
   return await self._sendfile(request, fobj, offset, count)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.11/site-packages/aiohttp/web_fileresponse.py", line 99, in _sendfile
   await loop.sendfile(transport, fobj, offset, count)
 File "/usr/local/lib/python3.11/asyncio/base_events.py", line 1185, in sendfile
   return await self._sendfile_native(transport, file,
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.11/asyncio/selector_events.py", line 725, in _sendfile_native
   return await self.sock_sendfile(transp._sock, file, offset, count,
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.11/asyncio/base_events.py", line 881, in sock_sendfile
   return await self._sock_sendfile_native(sock, file,
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.11/asyncio/unix_events.py", line 373, in _sock_sendfile_native
   return await fut
          ^^^^^^^^^
 File "/usr/local/lib/python3.11/asyncio/unix_events.py", line 395, in _sock_sendfile_native_impl
   sent = os.sendfile(fd, fileno, offset, blocksize)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
OverflowError: Python int too large to convert to C ssize_t

@bedevere-bot bedevere-bot mentioned this pull request Jul 22, 2023
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@bdraco bdraco marked this pull request as ready for review July 22, 2023 21:18
gvanrossum
gvanrossum reviewed Jul 23, 2023
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Thanks, this is definitely worth fixing. I have a few nits.

bdraco
bdraco commented Jul 23, 2023
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bdraco
bdraco commented Jul 23, 2023
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gvanrossum
gvanrossum approved these changes Jul 23, 2023
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Thanks!

@gvanrossum gvanrossum merged commit 9eeb4b4 into python:main Jul 23, 2023
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bdraco commented Jul 23, 2023

thanks

@bdraco bdraco deleted the sendfile_overflow_32bit branch July 23, 2023 04:10
jtcave pushed a commit to jtcave/cpython that referenced this pull request Jul 23, 2023
@bdraco @jtcave
pythongh-82500: Fix asyncio sendfile overflow on 32bit (python#107056)
72f0be3
mementum pushed a commit to mementum/cpython that referenced this pull request Jul 23, 2023
@bdraco @mementum
pythongh-82500: Fix asyncio sendfile overflow on 32bit (python#107056)
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@gvanrossum gvanrossum gvanrossum approved these changes

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