[tor-bugs] #24859 [Core Tor/Tor]: Bug: Non-fatal assertion !(ent == NULL) failed in store_multiple at src/or/consdiffmgr.c

[Tor Bug Tracker & Wiki]

#24859: Bug: Non-fatal assertion !(ent == NULL) failed in store_multiple at
src/or/consdiffmgr.c
------------------------------+---------------------------------
     Reporter:  dgoulet       |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-relay, consdiff
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+---------------------------------
 During an heavy DoS on my relay, it ran out of RAM and disk space which I
 believe might have triggered this assert:

 {{{
 Dec 16 17:37:47.562 [warn] Error writing to "/home/tor/diff-cache/1224":
 Disk quota exceeded
 Dec 16 17:37:47.562 [warn] tor_bug_occurred_(): Bug:
 src/or/consdiffmgr.c:1316: store_multiple: Non-fatal assertion !(ent ==
 NULL) failed. (on Tor 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug: Non-fatal assertion !(ent == NULL) failed
 in store_multiple at src/or/consdiffmgr.c:1316. Stack trace: (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(log_backtrace+0x42) [0x55994d4a8382] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(tor_bug_occurred_+0xb9) [0x55994d4c3619] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /root/git/tor/src/or/tor(+0x11a0c2)
 [0x55994d43e0c2] (on Tor 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /root/git/tor/src/or/tor(+0x11a7de)
 [0x55994d43e7de] (on Tor 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(replyqueue_process+0x51) [0x55994d4ca3c1] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /usr/lib/x86_64-linux-
 gnu/libevent-2.0.so.5(event_base_loop+0x819) [0x7f800d7404c9] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(do_main_loop+0x24f) [0x55994d37726f] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(tor_run_main+0x265) [0x55994d3786f5] (on Tor
 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:
 /root/git/tor/src/or/tor(tor_main+0x3a) [0x55994d371f4a] (on Tor 0.3.3.0
 -alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /root/git/tor/src/or/tor(main+0x19)
 [0x55994d371cb9] (on Tor 0.3.3.0-alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /lib/x86_64-linux-
 gnu/libc.so.6(__libc_start_main+0xf0) [0x7f800c65f830] (on Tor 0.3.3.0
 -alpha-dev 424572ee0a161428)
 Dec 16 17:37:47.563 [warn] Bug:     /root/git/tor/src/or/tor(_start+0x29)
 [0x55994d371d09] (on Tor 0.3.3.0-alpha-dev 424572ee0a161428)
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24859>
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