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[tor-bugs] #23676 [Core Tor/Tor]: relay running 0.3.2.1-alpha-dev wedged: kist bug?
#23676: relay running 0.3.2.1-alpha-dev wedged: kist bug?
------------------------------+--------------------------------
Reporter: arma | Owner: (none)
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.3.2.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Keywords:
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
------------------------------+--------------------------------
moria1 running "0.3.2.1-alpha-dev (git-a1f31c0671c82f95)" last wrote to
its info-level log this morning at 05:15:
{{{
Sep 27 05:15:09.482 [info] connection_close_immediate(): fd 334, type OR,
state open, 146672 bytes on outbuf.
}}}
That was 9 hours ago.
The process is still alive, and it's using 100% cpu.
I did a gdb attach, and it looks like it is doing...stuff. Here are three
snapshots:
{{{
#0 channel_flush_some_cells (chan=0x7f2e04c84c80, num_cells=1)
at src/or/channel.c:2355
#1 0x00007f2df60bd915 in kist_scheduler_run () at
src/or/scheduler_kist.c:589
#2 0x00007f2df60bb7e2 in scheduler_evt_callback (fd=<value optimized
out>,·
events=<value optimized out>, arg=<value optimized out>)
at src/or/scheduler.c:215
#3 0x00007f2df6201040 in event_process_active_single_queue ()
#4 0x00007f2df6201610 in event_process_active ()
#5 0x00007f2df6201d74 in event_base_loop ()
#6 0x00007f2df60530dd in run_main_loop_once () at src/or/main.c:2631
#7 run_main_loop_until_done () at src/or/main.c:2685
#8 do_main_loop () at src/or/main.c:2598
#9 0x00007f2df605421d in tor_main (argc=<value optimized out>,·
argv=<value optimized out>) at src/or/main.c:3780
#10 0x00007f2df604fd99 in main (argc=<value optimized out>,·
argv=<value optimized out>) at src/or/tor_main.c:34
}}}
{{{
#0 channel_more_to_flush (chan=0x7f2e04c84c80) at src/or/channel.c:2609
#1 0x00007f2df60bd868 in kist_scheduler_run () at
src/or/scheduler_kist.c:600
#2 0x00007f2df60bb7e2 in scheduler_evt_callback (fd=<value optimized
out>,·
events=<value optimized out>, arg=<value optimized out>)
at src/or/scheduler.c:215
#3 0x00007f2df6201040 in event_process_active_single_queue ()
#4 0x00007f2df6201610 in event_process_active ()
#5 0x00007f2df6201d74 in event_base_loop ()
#6 0x00007f2df60530dd in run_main_loop_once () at src/or/main.c:2631
#7 run_main_loop_until_done () at src/or/main.c:2685
#8 do_main_loop () at src/or/main.c:2598
#9 0x00007f2df605421d in tor_main (argc=<value optimized out>,·
argv=<value optimized out>) at src/or/main.c:3780
#10 0x00007f2df604fd99 in main (argc=<value optimized out>,·
argv=<value optimized out>) at src/or/tor_main.c:34
}}}
{{{
#0 0x00007f2df60bd42e in socket_table_s_HT_FIND_P_ (
chan=<value optimized out>, table=0x7f2df64f0ee0)
at src/or/scheduler_kist.c:50
#1 socket_table_s_HT_FIND (chan=<value optimized out>,
table=0x7f2df64f0ee0)
at src/or/scheduler_kist.c:51
#2 socket_table_search (chan=<value optimized out>, table=0x7f2df64f0ee0)
at src/or/scheduler_kist.c:168
#3 0x00007f2df60bd4a9 in socket_can_write (chan=<value optimized out>,
table=0x7f2df64f0ee0) at src/or/scheduler_kist.c:372
#4 0x00007f2df60bd968 in kist_scheduler_run () at
src/or/scheduler_kist.c:630
#5 0x00007f2df60bb7e2 in scheduler_evt_callback (fd=<value optimized
out>,
events=<value optimized out>, arg=<value optimized out>)
at src/or/scheduler.c:215
#6 0x00007f2df6201040 in event_process_active_single_queue ()
#7 0x00007f2df6201610 in event_process_active ()
#8 0x00007f2df6201d74 in event_base_loop ()
#9 0x00007f2df60530dd in run_main_loop_once () at src/or/main.c:2631
#10 run_main_loop_until_done () at src/or/main.c:2685
#11 do_main_loop () at src/or/main.c:2598
#12 0x00007f2df605421d in tor_main (argc=<value optimized out>,
argv=<value optimized out>) at src/or/main.c:3780
#13 0x00007f2df604fd99 in main (argc=<value optimized out>,
argv=<value optimized out>) at src/or/tor_main.c:34
}}}
David suggested that I try {{{strace -f -p PID -o /tmp/strace.log}}}, and
I ran it for 30 seconds or so, and it produced this file:
{{{
13376 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13375 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13374 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13373 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13372 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13371 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13370 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13369 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <unfinished
...>
13368 futex(0x7f2dff2de65c, FUTEX_WAIT_PRIVATE, 755787, NULL <detached
...>
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23676>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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