[tor-bugs] #23690 [Core Tor/Tor]: [err] buffers.c:651: buf_flush_to_socket

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#23690: [err] buffers.c:651: buf_flush_to_socket
--------------------------------+------------------------------------
 Reporter:  Felixix             |          Owner:  (none)
     Type:  defect              |         Status:  new
 Priority:  Medium              |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor        |        Version:
 Severity:  Normal              |     Resolution:
 Keywords:  0.3.2.2-alpha-must  |  Actual Points:
Parent ID:                      |         Points:
 Reviewer:                      |        Sponsor:
--------------------------------+------------------------------------
Description changed by arma:

Old description:

> Up with Tor 321a since 4 days 19 hours ( before Tor 315a ) like 2 sister
> relays. On FreeBSD. Lost all circuits and files on error:
>

> Sep 26 18:59:37.000 [err]
> tor_assertion_failed_: Bug: src/common/buffers.c:651:
> buf_flush_to_socket: Assertion *buf_flushlen <= buf->datalen failed;
> aborting.
>
> Sep 26 18:59:37.000 [err] Bug:
> Assertion *buf_flushlen <= buf->datalen failed in
> buf_flush_to_socket at src/common/buffers.c:651. Stack trace:
> 0x11a2bf8 <log_backtrace+0x48> at /usr/local/bin/tor
> 0x11bd6f7 <tor_assertion_failed_+0x97> at /usr/local/bin/tor
> 0x11a421a <buf_flush_to_socket+0x22a> at /usr/local/bin/tor
> 0x10774eb <tor_main+0x24bb> at /usr/local/bin/tor
> 0x801b37d3e <event_base_assert_ok_nolock_+0xbce> at
> /usr/local/lib/libevent-2.1.so.6
> 0x801b33cfe <event_base_loop+0x50e> at /usr/local/lib/libevent-2.1.so.6
> 0x1072d15 <do_main_loop+0x575> at /usr/local/bin/tor
> 0x1075119 <tor_main+0xe9> at /usr/local/bin/tor
> 0x1070b69 <main+0x19> at /usr/local/bin/tor
> 0x1070a61 <_start+0x1a1> at /usr/local/bin/tor
>

> 2017-09-26_18-59-00, time of error:
>   load averages:  1.03,  0.94,  0.78    ... 4 cores
>   NMBC: 2959/42587/45546/2035262 mbuf clusters in use
> (current/cache/total/max)
>   Mem: 2236M Active, 1269M Inact, 7162M Wired, 61M Cache, 21G Free
>   Swap: 4096M Total, 4096M Free
>
> [1] Attachment buf_flush_to_socket_Assertion_failed.tar.gz
>
> [2] https://lists.torproject.org/pipermail/tor-
> relays/2017-September/013082.html and following.
>
> Cheers!

New description:

 Up with Tor 321a since 4 days 19 hours ( before Tor 315a ) like 2 sister
 relays. On FreeBSD. Lost all circuits and files on error:

 {{{
 Sep 26 18:59:37.000 [err]
 tor_assertion_failed_: Bug: src/common/buffers.c:651:
 buf_flush_to_socket: Assertion *buf_flushlen <= buf->datalen failed;
 aborting.
 }}}
 {{{
 Sep 26 18:59:37.000 [err] Bug:
 Assertion *buf_flushlen <= buf->datalen failed in
 buf_flush_to_socket at src/common/buffers.c:651. Stack trace:
 0x11a2bf8 <log_backtrace+0x48> at /usr/local/bin/tor
 0x11bd6f7 <tor_assertion_failed_+0x97> at /usr/local/bin/tor
 0x11a421a <buf_flush_to_socket+0x22a> at /usr/local/bin/tor
 0x10774eb <tor_main+0x24bb> at /usr/local/bin/tor
 0x801b37d3e <event_base_assert_ok_nolock_+0xbce> at
 /usr/local/lib/libevent-2.1.so.6
 0x801b33cfe <event_base_loop+0x50e> at /usr/local/lib/libevent-2.1.so.6
 0x1072d15 <do_main_loop+0x575> at /usr/local/bin/tor
 0x1075119 <tor_main+0xe9> at /usr/local/bin/tor
 0x1070b69 <main+0x19> at /usr/local/bin/tor
 0x1070a61 <_start+0x1a1> at /usr/local/bin/tor
 }}}
 {{{
 2017-09-26_18-59-00, time of error:
   load averages:  1.03,  0.94,  0.78    ... 4 cores
   NMBC: 2959/42587/45546/2035262 mbuf clusters in use
 (current/cache/total/max)
   Mem: 2236M Active, 1269M Inact, 7162M Wired, 61M Cache, 21G Free
   Swap: 4096M Total, 4096M Free
 }}}

 [1] Attachment buf_flush_to_socket_Assertion_failed.tar.gz

 [2] https://lists.torproject.org/pipermail/tor-
 relays/2017-September/013082.html and following.

 Cheers!

--

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23690#comment:3>
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