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Closed (moved)
Opened by George Kadianakis@asn

tor_bug_occurred_(): Bug: src/or/entrynodes.c:816: entry_guard_add_to_sample_impl: Non-fatal assertion !(have_sampled_guard_with_id(gs, rsa_id_digest)) failed. (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)

Hey,

I've been running an oldish version of the guard branch on my tor browser. Top commit is 2767ae18064a879218 plus some extra logging code of mine.

I used Tor with guards and in my logs the following appeared:

Dec 18 01:10:04.000 [warn] tor_bug_occurred_(): Bug: src/or/entrynodes.c:816: entry_guard_add_to_sample_impl: Non-fatal assertion !(have_sampled_guard_with_id(gs, rsa_id_digest)) failed. (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de) 
Dec 18 01:10:04.000 [warn] Bug: Non-fatal assertion !(have_sampled_guard_with_id(gs, rsa_id_digest)) failed in entry_guard_add_to_sample_impl at src/or/entrynodes.c:816. Stack trace: (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /usr/lib/x86_64-linux-gnu/libasan.so.1(backtrace+0x3a) [0x7f0cde5be48a] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(log_backtrace+0x46) [0x7f0cdff74dc6] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(tor_bug_occurred_+0x12f) [0x7f0cdffc4c1f] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x8a249a) [0x7f0cdff2f49a] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x8a3b5c) [0x7f0cdff30b5c] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x8a500f) [0x7f0cdff3200f] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(entry_guards_update_all+0x10f0) [0x7f0cdff379e0] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(guards_update_all+0x83) [0x7f0cdff43cc3] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(set_options+0x62af) [0x7f0cdfe2521f] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(options_trial_assign+0xb3) [0x7f0cdfe28693] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x803aff) [0x7f0cdfe90aff] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(connection_control_process_inbuf+0xdcd) [0x7f0cdfe9df9d] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x7cb938) [0x7f0cdfe58938] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x56f716) [0x7f0cdfbfc716] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/libevent-2.0.so.5(event_base_loop+0x937) [0x7f0cdde408d7] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(do_main_loop+0x385) [0x7f0cdfbfe535] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(tor_main+0x1385) [0x7f0cdfc03385] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(main+0x1c) [0x7f0cdfbf16dc] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f0cdc098b45] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)
Dec 18 01:10:04.000 [warn] Bug:     /home/f/tor-browser_en-US/Browser/TorBrowser/Tor/tor(+0x56665b) [0x7f0cdfbf365b] (on Tor 0.3.0.0-alpha-dev 8b75261b6dc341de)

I've since restarted Tor to use git master, will update the ticket accordingly. Perhaps the above traceback is enough to identify the issue anyway.

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