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Re: [tor-talk] Tor client pushing large amounts of data?
tl;dr Did you by any chance compile tor with bufferevents enabled
Let's see the path of the sent bytes string:
The heartbeat code (src/or/status.c) receives the bytes sent in
log_heartbeat() using 'uint64_t get_bytes_written(void)' and stores it
into a uint64_t.
Then it passes it to 'static char *bytes_to_usage(uint64_t bytes)'
which has an 'if' statement checking the number of bytes so that it
can return a meaningful string.
In this case we got into the 'else' part of the 'if' which is
activated iff '(bytes >= (1<<30))', which means more or equals to a
Then 'bytes', a uint64_t, is casted into a double and printed into a
The only problem I can see here is if 'bytes' is bigger than what the
"mantissa" part of double can represent, in which case we start losing
The "mantissa" part is usuallyâ 53-bits which can represent 9~
petabytes; so it's gonna take a while and is probably irrelevant with
this thread's problem.
I don't see an integer overflow or underflow happening anywhere
From what I can gather, 'bytes' got into bytes_to_usage() with a
value around 48.08*(2^30).
Did you by any chance compile tor with bufferevents enabled?
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