[tor-bugs] #27331 [Core Tor/Tor]: Non-fatal assertion ent->cdm_diff_status != CDM_DIFF_PRESENT failed in cdm_diff_ht_check_and_note_pending at src/or/consdiffmgr.c:272

[Tor Bug Tracker & Wiki]

#27331: Non-fatal assertion ent->cdm_diff_status != CDM_DIFF_PRESENT failed in
cdm_diff_ht_check_and_note_pending at src/or/consdiffmgr.c:272
---------------------------------+------------------------------------
 Reporter:  a_p                  |          Owner:  (none)
     Type:  defect               |         Status:  new
 Priority:  High                 |      Milestone:  Tor: 0.3.5.x-final
Component:  Core Tor/Tor         |        Version:  Tor: 0.3.4.7-rc
 Severity:  Normal               |     Resolution:
 Keywords:  regression 035-must  |  Actual Points:
Parent ID:                       |         Points:
 Reviewer:                       |        Sponsor:
---------------------------------+------------------------------------

Comment (by dgoulet):

 Just hit this on a relay Tor 0.4.0.1-alpha 16430fdaf546cf8a: roughly
 20hours after startup:

 {{{
 Jan 17 13:06:59.525 [warn] tor_bug_occurred_(): Bug:
 src/feature/dircache/consdiffmgr.c:279:
 cdm_diff_ht_check_and_note_pending: Non-fatal assertion
 ent->cdm_diff_status != CDM_DIFF_PRESENT failed. (on Tor 0.4.0.1-alpha
 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug: Non-fatal assertion ent->cdm_diff_status
 != CDM_DIFF_PRESENT failed in cdm_diff_ht_check_and_note_pending at
 src/feature/dircache/consdiffmgr.c:279. Stack trace: (on Tor 0.4.0.1-alpha
 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:
 /root/git/tor/src/app/tor(log_backtrace_impl+0x45) [0x562981786635] (on
 Tor 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:
 /root/git/tor/src/app/tor(tor_bug_occurred_+0xc0) [0x562981781c90] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /root/git/tor/src/app/tor(+0xe3bc2)
 [0x562981671bc2] (on Tor 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /usr/lib/x86_64-linux-
 gnu/libevent-2.1.so.6(+0x1ea11) [0x7f6e8bf98a11] (on Tor 0.4.0.1-alpha
 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /usr/lib/x86_64-linux-
 gnu/libevent-2.1.so.6(event_base_loop+0x53f) [0x7f6e8bf9933f] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:
 /root/git/tor/src/app/tor(do_main_loop+0x94) [0x5629815fcb14] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:
 /root/git/tor/src/app/tor(tor_run_main+0x122d) [0x5629815e9f1d] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:
 /root/git/tor/src/app/tor(tor_main+0x3a) [0x5629815e70ea] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /root/git/tor/src/app/tor(main+0x19)
 [0x5629815e6c79] (on Tor 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /lib/x86_64-linux-
 gnu/libc.so.6(__libc_start_main+0xe7) [0x7f6e8b2a9b97] (on Tor
 0.4.0.1-alpha 16430fdaf546cf8a)
 Jan 17 13:06:59.586 [warn] Bug:     /root/git/tor/src/app/tor(_start+0x2a)
 [0x5629815e6cca] (on Tor 0.4.0.1-alpha 16430fdaf546cf8a)
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27331#comment:9>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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