Bug: Non-fatal assertion !(ent == NULL) failed in store_multiple at src/or/consdiffmgr.c
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)