[tor-bugs] #33686 [Core Tor/Tor]: Tor 0.4.2.7 wont get past bootstrap phase with Sandbox 1 enabled

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#33686: Tor 0.4.2.7 wont get past bootstrap phase with Sandbox 1 enabled
--------------------------+------------------------------
 Reporter:  cypherpunks   |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.4.2.7  |       Severity:  Normal
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 I get this output from the terminal only when Sandbox 1 is enabled and it
 did not happen on earlier versions:

 Mar 21 21:07:21.000 [notice] Bootstrapped 0% (starting): Starting
 Mar 21 21:10:10.000 [notice] Starting with guard context "default"
 Mar 21 21:10:10.000 [warn] tor_bug_occurred_(): Bug:
 src/lib/evloop/workqueue.c:353: workerthread_new: This line should not
 have been reached. (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug: Tor 0.4.2.7: Line unexpectedly reached at
 workerthread_new at src/lib/evloop/workqueue.c:353. Stack trace: (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(log_backtrace_impl+0x47)
 [0x600404] (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_bug_occurred_+0xa9) [0x5fcea2]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(threadpool_new+0x12b) [0x5ae6b0]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(cpu_init+0x59) [0x4be66e] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(run_tor_main_loop+0x9f) [0x4b3064]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_run_main+0xb85) [0x4b3f16] (on
 Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_main+0x23) [0x4b1f98] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(main+0x13) [0x4b1c24] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     /lib/arm-linux-
 gnueabihf/libc.so.6(__libc_start_main+0x97) [0xb694b524] (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [err] Can't launch worker thread.
 Mar 21 21:10:10.000 [warn] tor_bug_occurred_(): Bug:
 src/lib/evloop/workqueue.c:519: threadpool_start_threads: This line should
 not have been reached. (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug: Tor 0.4.2.7: Line unexpectedly reached at
 threadpool_start_threads at src/lib/evloop/workqueue.c:519. Stack trace:
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(log_backtrace_impl+0x47)
 [0x600404] (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_bug_occurred_+0xa9) [0x5fcea2]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(threadpool_new+0x15b) [0x5ae6e0]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(cpu_init+0x59) [0x4be66e] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(run_tor_main_loop+0x9f) [0x4b3064]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_run_main+0xb85) [0x4b3f16] (on
 Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_main+0x23) [0x4b1f98] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(main+0x13) [0x4b1c24] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     /lib/arm-linux-
 gnueabihf/libc.so.6(__libc_start_main+0x97) [0xb694b524] (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] tor_bug_occurred_(): Bug:
 src/lib/evloop/workqueue.c:563: threadpool_new: This line should not have
 been reached. (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug: Tor 0.4.2.7: Line unexpectedly reached at
 threadpool_new at src/lib/evloop/workqueue.c:563. Stack trace: (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(log_backtrace_impl+0x47)
 [0x600404] (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_bug_occurred_+0xa9) [0x5fcea2]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(threadpool_new+0x183) [0x5ae708]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(cpu_init+0x59) [0x4be66e] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(run_tor_main_loop+0x9f) [0x4b3064]
 (on Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_run_main+0xb85) [0x4b3f16] (on
 Tor 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(tor_main+0x23) [0x4b1f98] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     tor(main+0x13) [0x4b1c24] (on Tor
 0.4.2.7 )
 Mar 21 21:10:10.000 [warn] Bug:     /lib/arm-linux-
 gnueabihf/libc.so.6(__libc_start_main+0x97) [0xb694b524] (on Tor 0.4.2.7 )

 ============================================================ T= 1584825010
 Tor 0.4.2.7 died: Caught signal 11
 tor(+0x19631a)[0x60031a]
 tor(threadpool_register_reply_event+0x19)[0x5ae80e]
 tor(threadpool_register_reply_event+0x19)[0x5ae80e]
 tor(cpu_init+0x61)[0x4be676]
 tor(run_tor_main_loop+0x9f)[0x4b3064]
 tor(tor_run_main+0xb85)[0x4b3f16]
 tor(tor_main+0x23)[0x4b1f98]
 tor(main+0x13)[0x4b1c24]
 /lib/arm-linux-gnueabihf/libc.so.6(__libc_start_main+0x97)[0xb694b524]

 [1]+  Illegal instruction     tor -f torrc

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33686>
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