Non-fatal assertion !(tor_mem_is_zero((const char*)node->hsdir_index->fetch, DIGEST256_LEN))

This one is back, since pre-release days of hsv3. Something makes it such that the hsdir index is not well set for some relays.

I got this to happen on my hsv3 service a few weeks ago. I got it a few times on the same second for the same node, and then it got fixed... There were no other references to that node (or its fpr) before that.

Jan 04 21:30:54.000 [warn] tor_bug_occurred_(): Bug: src/or/hs_common.:1277: node_has_hsdir_index: Non-fatal assertion !(tor_mem_is_zero((const char*)node->hsdir_index->fetch, DIGEST256_LEN)) failed. (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug: Non-fatal assertion !(tor_mem_is_zero((const char*)node->hsdir_index->fetch, DIGEST256_LEN)) failed in node_has_hsdir_index at src/or/hs_common.c:1277. Stack trace: (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(log_backtrace+0x42) [0x7f6079a21db2] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(tor_bug_occurred_+0xb7) [0x7f6079a3cc57] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(hs_get_responsible_hsdirs+0x4f9) [0x7f6079a046c9] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(hs_service_run_scheduled_events+0x1a5b) [0x7f6079a11c5b] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(+0x4b9f1) [0x7f60798ed9f1] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(+0x6b4f0) [0x7f607990d4f0] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5(event_base_loop+0x7fc) [0x7f6078f253dc] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(do_main_loop+0x244) [0x7f60798f0eb4] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(tor_main+0x1c25) [0x7f60798f46f5] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(main+0x19) [0x7f60798ec629] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f60781182b1] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [warn] Bug:     ./tor/src/or/tor(_start+0x2a) [0x7f60798ec67a] (on Tor 0.3.2.6-alpha-dev b6fd78ea301bd089)
Jan 04 21:30:55.000 [info] hs_get_responsible_hsdirs(): Node $EEC47B34F9403AA7F765D070BB3011E50A373C21~ivanmk2 at 185.22.173.162 was found without hsdir index.
Jan 04 21:30:55.000 [info] run_upload_descriptor_event(): Initiating upload for hidden service current descriptor for service onion with 3/3 introduction points.