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[tor-bugs] #25691 [Core Tor/Tor]: Bridges don't work: Non-fatal assertion !(exit_ei == NULL) failed in onion_pick_cpath_exit
#25691: Bridges don't work: Non-fatal assertion !(exit_ei == NULL) failed in
onion_pick_cpath_exit
------------------------------+------------------------------------
Reporter: teor | Owner: (none)
Type: defect | Status: new
Priority: High | Milestone: Tor: 0.3.4.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Keywords: regression, 0.3.4-must
Actual Points: | Parent ID:
Points: 0.5 | Reviewer:
Sponsor: |
------------------------------+------------------------------------
When running bridges-min and bridges+ipv6-min in chutney on macOS 10.13,
Apple clang 9.0.0 with Xcode 9.2:
{{{
Apr 03 08:16:13.578 [info] circuit_predict_and_launch_new: Have 0 clean
circs (0 internal), need another exit circ.
Apr 03 08:16:13.578 [info] choose_good_exit_server_general: Found 1
servers that might support 0/0 pending connections.
Apr 03 08:16:13.579 [info] choose_good_exit_server_general: Chose exit
server '$2E832C796F35B96C3854941B01FF4E51E0968E24~test002r at 127.0.0.1'
Apr 03 08:16:13.580 [warn] tor_bug_occurred_: Bug:
src/or/circuitbuild.c:2390: onion_pick_cpath_exit: Non-fatal assertion
!(exit_ei == NULL) failed. (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.585 [warn] Bug: Non-fatal assertion !(exit_ei == NULL)
failed in onion_pick_cpath_exit at src/or/circuitbuild.c:2390. Stack
trace: (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.586 [warn] Bug: 0 tor
0x00665f83 log_backtrace + 67 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.587 [warn] Bug: 1 tor
0x006e0ad7 tor_bug_occurred_ + 503 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.587 [warn] Bug: 2 tor
0x0011843d circuit_establish_circuit + 18621 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.588 [warn] Bug: 3 tor
0x00186560 circuit_launch_by_extend_info + 992 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.589 [warn] Bug: 4 tor
0x0017f868 circuit_build_needed_circs + 3784 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.590 [warn] Bug: 5 tor
0x0044b33c second_elapsed_callback + 1468 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.591 [warn] Bug: 6 tor
0x0075b2f1 periodic_timer_cb + 129 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.592 [warn] Bug: 7 libevent-2.1.6.dylib
0x0104f6f3 event_process_active_single_queue + 1289 (on Tor 0.3.4.0-alpha-
dev 3df954549232bf55)
Apr 03 08:16:13.593 [warn] Bug: 8 libevent-2.1.6.dylib
0x0104bf12 event_base_loop + 1109 (on Tor 0.3.4.0-alpha-dev
3df954549232bf55)
Apr 03 08:16:13.594 [warn] Bug: 9 tor
0x00449fd9 do_main_loop + 3289 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.595 [warn] Bug: 10 tor
0x00453990 tor_run_main + 704 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.596 [warn] Bug: 11 tor
0x006585a7 tor_main + 71 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.597 [warn] Bug: 12 tor
0x000a3546 main + 38 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.598 [warn] Bug: 13 libdyld.dylib
0xa75576e1 start + 1 (on Tor 0.3.4.0-alpha-dev 3df954549232bf55)
Apr 03 08:16:13.599 [info] circuit_mark_for_close_: Circuit 0 (id: 2)
marked for close at src/or/circuitbuild.c:479 (orig reason: -2, new
reason: 0)
Apr 03 08:16:13.600 [info] circuit_free_: Circuit 0 (id: 2) has been
freed.
}}}
Other networks also log this bug but don't fail.
{{{
$ clang --version
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin17.3.0
...
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25691>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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