python - MD5 mismatch when upload large file using webpy with uwsgi -

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we found big problem, when start webpy following script:

uwsgi --master --plugin python,http --harakiri 60 --harakiri-verbose --post-buffering 8192 --http-raw-body --socket :3899 --wsgi-file uwsgi.py -p 16 --threads 16 --chdirpwd-d uwsgi.log

and upload 22.9mb file (apk) through form submit /app/upload.json
enctype multipart/form-data

then found these file been changed uwsgi.

$ md5sum *.apk  adc952ca3c7702f1134c93738248374b *59b9dd2fde88e94da2a87514.apk adc952ca3c7702f1134c93738248374b *59b9ded2de88e91e13a6f139.apk adc952ca3c7702f1134c93738248374b *59b9e2c6de88e94da2a8764c.apk adc952ca3c7702f1134c93738248374b *59b9ec13de88e91e13a6fc42.apk ac69d0b0f970c9da7f4768e5c3d5ff92 *gs.apk

note gs.apk origin file , other files uploaded form submit.

and these files have same size.

-rwxrwx---+  24009861 九月 14 09:38 59b9dd2fde88e94da2a87514.apk -rwxrwx---+  24009861 九月 14 09:45 59b9ded2de88e91e13a6f139.apk -rwxrwx---+  24009861 九月 14 10:01 59b9e2c6de88e94da2a8764c.apk -rwxrwx---+  24009861 九月 14 10:41 59b9ec13de88e91e13a6fc42.apk -rwxrwx---+  24009861 九月 14 09:16 gs.apk

then dump these file hex , diff them tool:

enter image description here


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