[tor-bugs] #26434 [Core Tor/Tor]: Bug: Emptied a dirserv buffer, but it's still spooling!

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#26434: Bug: Emptied a dirserv buffer, but it's still spooling!
--------------------------+------------------------------------
 Reporter:  arma          |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.5.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------

Comment (by arma):

 Ah ha. This happens once an hour or so. Here is the first time, with more
 detail:
 {{{
 Jun 20 15:14:05.948 [warn] connection_mark_for_close_internal_(): Bug:
 Duplicate call to connection_mark_for_close at src/or/directory.c:5232
 (first at src/or/main.c:1218) (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.948 [warn] tor_bug_occurred_(): Bug:
 src/or/connection.c:871: connection_mark_for_close_internal_: This line
 should not have been reached. (Future instances of this warning will be
 silenced.) (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.951 [warn] Bug: Line unexpectedly reached at
 connection_mark_for_close_internal_ at src/or/connection.c:871. Stack
 trace: (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.951 [warn] Bug:     ../git/src/or/tor(log_backtrace+0x42)
 [0x2907f2] (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.951 [warn] Bug:
 ../git/src/or/tor(tor_bug_occurred_+0xca) [0x2ab4ea] (on Tor 0.3.5.0
 -alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.951 [warn] Bug:
 ../git/src/or/tor(connection_dir_finished_flushing+0x164) [0x23f934] (on
 Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:
 ../git/src/or/tor(connection_handle_read+0x8b1) [0x21a301] (on Tor 0.3.5.0
 -alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(+0x52631) [0x15a631]
 (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:
 /usr/lib64/libevent-2.0.so.5(event_base_loop+0x53c) [0x50c6f8c] (on Tor
 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(do_main_loop+0x47c)
 [0x15b7ec] (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(tor_run_main+0x28c)
 [0x15bc1c] (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(tor_main+0x43)
 [0x1538d3] (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(main+0x19)
 [0x153769] (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:
 /lib64/libc.so.6(__libc_start_main+0xfd) [0x5d78d1d] (on Tor 0.3.5.0
 -alpha-dev e4e949e901400c85)
 Jun 20 15:14:05.952 [warn] Bug:     ../git/src/or/tor(+0x4b679) [0x153679]
 (on Tor 0.3.5.0-alpha-dev e4e949e901400c85)
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26434#comment:1>
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