[tor-bugs] #7164 [Core Tor/Tor]: microdesc.c:378: Bug: microdesc_free() called, but md was still referenced 1 node(s); held_by_nodes == 1

[Tor Bug Tracker & Wiki]

#7164: microdesc.c:378: Bug: microdesc_free() called, but md was still referenced
1 node(s); held_by_nodes == 1
-------------------------------------------------+-------------------------
 Reporter:  jaj123                               |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.4.19
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-client, 025-backport, nickm-     |  Actual Points:
  should-review, review-group-24                 |
Parent ID:                                       |         Points:  2
 Reviewer:  asn                                  |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by arma):

 moria1 hits this once a week or so:
 {{{
 Nov 01 15:18:22.682 [warn] microdesc_cache_clean(): Bug: Microdescriptor
 seemed very old (last listed 168 hours ago vs 168 hour cutoff), but is
 still marked as being held by 1 node(s). I found 1 node(s) holding it.
 Current networkstatus is 0 hours old. Hashtable badness is 0. (on Tor
 0.3.3.0-alpha-dev 853bbb9112a16055)
 Nov 01 15:18:22.682 [warn] microdesc_cache_clean(): Bug:   [0]:
 ID=BB119A5A4D5DA2BBB7B796ECC50E3C0F1D4FD910. md=0x7fdea11000b0,
 rs=0x7fdea6c395c0, ri=(nil). Microdesc digest in RS matches. RS okay in
 networkstatus. (on Tor 0.3.3.0-alpha-dev 853bbb9112a16055)
 Nov 01 15:18:22.690 [warn] microdesc_cache_clean(): Bug: Microdescriptor
 seemed very old (last listed 168 hours ago vs 168 hour cutoff), but is
 still marked as being held by 1 node(s). I found 1 node(s) holding it.
 Current networkstatus is 0 hours old. Hashtable badness is 0. (on Tor
 0.3.3.0-alpha-dev 853bbb9112a16055)
 Nov 01 15:18:22.690 [warn] microdesc_cache_clean(): Bug:   [0]:
 ID=B62A3F23955AF323A03F4ADB355C7D00594CFBD1. md=0x7fdea194a650,
 rs=0x7fdec70afbf0, ri=(nil). Microdesc digest in RS matches. RS okay in
 networkstatus. (on Tor 0.3.3.0-alpha-dev 853bbb9112a16055)
 Nov 01 15:18:22.690 [info] microdesc_cache_clean(): Removed 126/55533
 microdescriptors as old.
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7164#comment:100>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online