bug#32367: 2.2.4 hangs when a script uses a module that calls sigaction

[Göran Weinholt]

Derek Upham <address@hidden> writes:

> This is with guile-2.2 (2.2.4+1-1) and guile-2.2-libs (2.2.4+1-1) on
> Debian unstable, for the amd64 architecture.
...
>
>   % /usr/bin/guile -s foo 
>   setting SIGCHILD to SIG_DFL...
>   setting SIGCHILD to SIG_DFL...done

Here's a backtrace:

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Reading symbols from /usr/bin/guile...Reading symbols from 
/usr/lib/debug/.build-id/e3/f08708458c69f9adf32d6cafd6d9ca7a8410ea.debug...done.
done.
Attaching to program: /usr/bin/guile, process 29610
[New LWP 29611]
[New LWP 29612]
[New LWP 29613]
[New LWP 29614]
[New LWP 29615]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
s0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x559a855ebe60) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
88        int err = lll_futex_timed_wait (futex_word, expected, NULL, private);
(gdb) set pagination off
(gdb) thread apply all bt

Thread 6 (Thread 0x7fb48891c700 (LWP 29615)):
#0  0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x559a855ebae0) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x559a8571ff80, 
cond=0x559a855ebab8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (address@hidden, address@hidden) at 
pthread_cond_wait.c:655
#3  0x00007fb48cb86bf5 in scm_pthread_cond_wait (address@hidden, 
address@hidden) at threads.c:1621
#4  0x00007fb48cb86dbb in block_self (queue=0x559a8571c2c0, address@hidden, 
address@hidden) at threads.c:316
#5  0x00007fb48cb86f6f in lock_mutex (current_thread=0x559a855eba80, 
waittime=0x0, m=0x559a8571ff80, kind=SCM_MUTEX_RECURSIVE) at threads.c:1037
#6  scm_timed_lock_mutex (mutex=0x559a8571c2b0, timeout=<optimized out>) at 
threads.c:1101
#7  0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#8  0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#9  0x00007fb48cb1ab0f in scm_call_3 (proc=<optimized out>, address@hidden, 
address@hidden, address@hidden) at eval.c:501
#10 0x00007fb48cb3d950 in scm_private_variable (module_name=0x7fb489ee9050, 
name=0x559a8565eb20) at modules.c:674
#11 0x00007fb48cb3da51 in scm_private_lookup (module_name=0x7fb489ee9050, 
name=0x559a8565eb20) at modules.c:717
#12 0x00007fb48cb97fd1 in vm_regular_engine () at vm-engine.c:2066
#13 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#14 0x00007fb48cb86076 in really_launch (d=0x559a8592c6e0) at threads.c:794
#15 0x00007fb48cb14dfa in c_body (d=0x7fb48891be40) at continuations.c:422
#16 0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#17 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#18 0x00007fb48cb87784 in catch (address@hidden, thunk=0x559a85937720, 
handler=0x559a859376e0, pre_unwind_handler=0x559a859376a0) at throw.c:137
#19 0x00007fb48cb87aa5 in scm_catch_with_pre_unwind_handler (address@hidden, 
thunk=<optimized out>, handler=<optimized out>, pre_unwind_handler=<optimized 
out>) at throw.c:254
#20 0x00007fb48cb87c6f in scm_c_catch (address@hidden, address@hidden <c_body>, 
address@hidden, address@hidden <c_handler>, address@hidden, address@hidden 
<pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at throw.c:377
#21 0x00007fb48cb153e0 in scm_i_with_continuation_barrier (address@hidden 
<c_body>, address@hidden, address@hidden <c_handler>, address@hidden, 
address@hidden <pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at 
continuations.c:360
#22 0x00007fb48cb15475 in scm_c_with_continuation_barrier (func=<optimized 
out>, data=<optimized out>) at continuations.c:456
#23 0x00007fb48cb86396 in with_guile (base=0x7fb48891bea8, data=0x7fb48891bed0) 
at threads.c:661
#24 0x00007fb48c4d04e8 in GC_call_with_stack_base () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#25 0x00007fb48cb8589d in scm_i_with_guile (dynamic_state=<optimized out>, 
data=0x559a8592c6e0, func=0x7fb48cb86000 <really_launch>) at threads.c:704
#26 launch_thread (d=0x559a8592c6e0) at threads.c:803
#27 0x00007fb48c8eaf2a in start_thread (arg=0x7fb48891c700) at 
pthread_create.c:463
#28 0x00007fb48c81dedf in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fb48999b700 (LWP 29614)):
#0  0x00007fb48c8f4394 in __libc_read (fd=5, address@hidden, address@hidden) at 
../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fb48cb240d7 in read (__nbytes=1, __buf=0x7fb48999aa40, 
__fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  read_finalization_pipe_data (data=0x7fb48999aa40) at finalizers.c:199
#3  0x00007fb48c4d60c3 in GC_do_blocking_inner () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#4  0x00007fb48c4ca9ce in GC_with_callee_saves_pushed () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#5  0x00007fb48c4d051c in GC_do_blocking () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#6  0x00007fb48cb8677a in scm_without_guile (func=0x7fb48cb240c0 
<read_finalization_pipe_data>, data=0x7fb48999aa40) at threads.c:722
#7  0x00007fb48cb2448b in finalization_thread_proc (unused=<optimized out>) at 
finalizers.c:212
#8  0x00007fb48cb14dfa in c_body (d=0x7fb48999ae40) at continuations.c:422
#9  0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#10 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#11 0x00007fb48cb87784 in catch (address@hidden, thunk=0x559a85619860, 
handler=0x559a85619840, pre_unwind_handler=0x559a856197c0) at throw.c:137
#12 0x00007fb48cb87aa5 in scm_catch_with_pre_unwind_handler (address@hidden, 
thunk=<optimized out>, handler=<optimized out>, pre_unwind_handler=<optimized 
out>) at throw.c:254
#13 0x00007fb48cb87c6f in scm_c_catch (address@hidden, address@hidden <c_body>, 
address@hidden, address@hidden <c_handler>, address@hidden, address@hidden 
<pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at throw.c:377
#14 0x00007fb48cb153e0 in scm_i_with_continuation_barrier (address@hidden 
<c_body>, address@hidden, address@hidden <c_handler>, address@hidden, 
address@hidden <pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at 
continuations.c:360
#15 0x00007fb48cb15475 in scm_c_with_continuation_barrier (func=<optimized 
out>, data=<optimized out>) at continuations.c:456
#16 0x00007fb48cb86396 in with_guile (base=0x7fb48999aea8, data=0x7fb48999aed0) 
at threads.c:661
#17 0x00007fb48c4d04e8 in GC_call_with_stack_base () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#18 0x00007fb48cb86728 in scm_i_with_guile (dynamic_state=<optimized out>, 
data=<optimized out>, func=<optimized out>) at threads.c:704
#19 scm_with_guile (func=<optimized out>, data=<optimized out>) at threads.c:710
#20 0x00007fb48c8eaf2a in start_thread (arg=0x7fb48999b700) at 
pthread_create.c:463
#21 0x00007fb48c81dedf in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb48a83d700 (LWP 29613)):
#0  0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x7fb48c6f4208) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb48c6f4260, 
cond=0x7fb48c6f41e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb48c6f41e0, mutex=0x7fb48c6f4260) at 
pthread_cond_wait.c:655
#3  0x00007fb48c4d6de7 in GC_wait_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#4  0x00007fb48c4cd6da in GC_help_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#5  0x00007fb48c4d54bc in GC_mark_thread () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#6  0x00007fb48c8eaf2a in start_thread (arg=0x7fb48a83d700) at 
pthread_create.c:463
#7  0x00007fb48c81dedf in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb48b03e700 (LWP 29612)):
#0  0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x7fb48c6f4208) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb48c6f4260, 
cond=0x7fb48c6f41e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb48c6f41e0, mutex=0x7fb48c6f4260) at 
pthread_cond_wait.c:655
#3  0x00007fb48c4d6de7 in GC_wait_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#4  0x00007fb48c4cd6da in GC_help_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#5  0x00007fb48c4d54bc in GC_mark_thread () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#6  0x00007fb48c8eaf2a in start_thread (arg=0x7fb48b03e700) at 
pthread_create.c:463
#7  0x00007fb48c81dedf in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb48b83f700 (LWP 29611)):
#0  0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x7fb48c6f4208) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb48c6f4260, 
cond=0x7fb48c6f41e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb48c6f41e0, mutex=0x7fb48c6f4260) at 
pthread_cond_wait.c:655
#3  0x00007fb48c4d6de7 in GC_wait_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#4  0x00007fb48c4cd6da in GC_help_marker () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#5  0x00007fb48c4d54bc in GC_mark_thread () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#6  0x00007fb48c8eaf2a in start_thread (arg=0x7fb48b83f700) at 
pthread_create.c:463
#7  0x00007fb48c81dedf in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb48bc8e740 (LWP 29610)):
#0  0x00007fb48c8f0e6c in futex_wait_cancelable (private=<optimized out>, 
expected=0, futex_word=0x559a855ebe60) at 
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x559a856e7f00, 
cond=0x559a855ebe38) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (address@hidden, address@hidden) at 
pthread_cond_wait.c:655
#3  0x00007fb48cb86bf5 in scm_pthread_cond_wait (address@hidden, 
address@hidden) at threads.c:1621
#4  0x00007fb48cb86dbb in block_self (queue=0x559a8578f980, address@hidden, 
address@hidden) at threads.c:316
#5  0x00007fb48cb872cd in timed_wait (c=0x559a85757630, 
current_thread=0x559a855ebe00, current_thread=0x559a855ebe00, waittime=0x0, 
m=0x559a856e7f00, kind=SCM_MUTEX_STANDARD) at threads.c:1347
#6  scm_timed_wait_condition_variable (cond=0x559a8578f990, 
mutex=0x559a8578f960, timeout=0x904) at threads.c:1440
#7  0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#8  0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#9  0x00007fb48cb1aaea in scm_call_2 (proc=<optimized out>, arg1=<optimized 
out>, arg2=<optimized out>) at eval.c:494
#10 0x00007fb48cb867c5 in scm_call_with_new_thread (thunk=<optimized out>, 
handler=<optimized out>) at threads.c:746
#11 0x00007fb48cb86816 in scm_spawn_thread (address@hidden 
<signal_delivery_thread>, address@hidden, handler=<optimized out>, 
address@hidden) at threads.c:844
#12 0x00007fb48cb66351 in start_signal_delivery_thread () at scmsigs.c:207
#13 0x00007fb48c8f2827 in __pthread_once_slow (once_control=0x7fb48cbf5ac8 
<once>, init_routine=0x7fb48cb66310 <start_signal_delivery_thread>) at 
pthread_once.c:116
#14 0x00007fb48c8f28e5 in __GI___pthread_once (address@hidden <once>, 
address@hidden <start_signal_delivery_thread>) at pthread_once.c:143
#15 0x00007fb48cb6668f in scm_i_ensure_signal_delivery_thread () at 
scmsigs.c:332
#16 scm_sigaction_for_thread (signum=<optimized out>, handler=0x2, 
flags=<optimized out>, thread=0x559a85622e90) at scmsigs.c:332
#17 0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#18 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#19 0x00007fb48cb38968 in scm_primitive_load_path (args=<optimized out>) at 
load.c:1248
#20 0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#21 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#22 0x00007fb48cb1bc07 in scm_primitive_eval (exp=<optimized out>, 
address@hidden) at eval.c:662
#23 0x00007fb48cb1bc63 in scm_eval (exp=0x559a85735280, address@hidden) at 
eval.c:696
#24 0x00007fb48cb67750 in scm_shell (argc=3, argv=0x7fff44ec9708) at 
script.c:454
#25 0x00007fb48cb3250d in invoke_main_func (body_data=0x7fff44ec95b0) at 
init.c:340
#26 0x00007fb48cb14dfa in c_body (d=0x7fff44ec94f0) at continuations.c:422
#27 0x00007fb48cb9353f in vm_regular_engine () at vm-engine.c:786
#28 0x00007fb48cb98d8f in scm_call_n () at vm.c:1257
#29 0x00007fb48cb87784 in catch (address@hidden, thunk=0x559a85687140, 
handler=0x559a856870e0, pre_unwind_handler=0x559a856870c0) at throw.c:137
#30 0x00007fb48cb87aa5 in scm_catch_with_pre_unwind_handler (address@hidden, 
thunk=<optimized out>, handler=<optimized out>, pre_unwind_handler=<optimized 
out>) at throw.c:254
#31 0x00007fb48cb87c6f in scm_c_catch (address@hidden, address@hidden <c_body>, 
address@hidden, address@hidden <c_handler>, address@hidden, address@hidden 
<pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at throw.c:377
#32 0x00007fb48cb153e0 in scm_i_with_continuation_barrier (address@hidden 
<c_body>, address@hidden, address@hidden <c_handler>, address@hidden, 
address@hidden <pre_unwind_handler>, pre_unwind_handler_data=0x559a85689a20) at 
continuations.c:360
#33 0x00007fb48cb15475 in scm_c_with_continuation_barrier (func=<optimized 
out>, data=<optimized out>) at continuations.c:456
#34 0x00007fb48cb86396 in with_guile (base=0x7fff44ec9558, data=0x7fff44ec9580) 
at threads.c:661
#35 0x00007fb48c4d04e8 in GC_call_with_stack_base () from 
/usr/lib/x86_64-linux-gnu/libgc.so.1
#36 0x00007fb48cb86728 in scm_i_with_guile (dynamic_state=<optimized out>, 
address@hidden, address@hidden <invoke_main_func>) at threads.c:704
#37 scm_with_guile (address@hidden <invoke_main_func>, address@hidden) at 
threads.c:710
#38 0x00007fb48cb326a2 in scm_boot_guile (argc=3, argv=0x7fff44ec9708, 
main_func=0x559a83f6e270 <inner_main>, closure=0x0) at init.c:323
#39 0x0000559a83f6e114 in main (argc=3, argv=0x7fff44ec9708) at guile.c:101


-- 
Göran Weinholt
Debian developer
73 de SA6CJK