Heap corruption leads to random crashes

DoneSubmitted by Ludovic Courtès.
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  • Ludovic Courtès
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Ludovic Courtès wrote on 8 Mar 2020 22:50
[3.0.1] Segfault in GC
(address . bug-guile@gnu.org)
87sgii7bz6.fsf@gnu.org
Hello,

Building ‘guile3.0-guix’ on x86_64-linux from Guix commit
1a30351bf37930222f077cdbcbb6659372f1ea2d leads to a GC segfault. This
can be reproduced with:

guix pull --commit=1a30351bf37930222f077cdbcbb6659372f1ea2d
guix build -K guile3.0-guix

‘guix pull’ also segfaults similarly on x86_64-linux.

The build log for ‘guile3.0-guix’ goes like this:

Toggle snippet (12 lines)
[ 43%] LOAD gnu/services.scm
[ 43%] LOAD gnu/services/admin.scm
[ 43%] LOAD gnu/services/audio.scm
[ 44%] LOAD gnu/services/auditd.scm
[ 44%] LOAD gnu/services/avahi.scm
[ 44%] LOAD gnu/services/base.scm
[ 44%] LOAD gnu/services/certbot.scm
/gnu/store/29jhbbg1hf557x8j53f9sxd9imlmf02a-bash-minimal-5.0.7/bin/bash: line 7: 26114 Segmentation fault XDG_CACHE_HOME=/nowhere host=x86_64-unknown-linux-gnu srcdir="." ./pre-inst-env /gnum
make[2]: *** [Makefile:5785: make-go] Error 139
make[2]: Leaving directory '/tmp/guix-build-guile3.0-guix-1.0.1-14.c2f9ea2.drv-0/source'

The backtrace:

Toggle snippet (118 lines)
(gdb) bt
#0 GC_clear_fl_marks (q=<optimized out>) at alloc.c:880
#1 0x00007f92ec27d331 in GC_finish_collection () at alloc.c:987
#2 0x00007f92ec27d705 in GC_try_to_collect_inner (
stop_func=0x7f92ec27c8e0 <GC_never_stop_func>) at alloc.c:502
#3 0x00007f92ec27e314 in GC_collect_or_expand (needed_blocks=needed_blocks@entry=1,
ignore_off_page=ignore_off_page@entry=0, retry=retry@entry=0) at alloc.c:1353
#4 0x00007f92ec27e50f in GC_allocobj (gran=gran@entry=1, kind=1) at alloc.c:1445
#5 0x00007f92ec28413f in GC_generic_malloc_inner (lb=lb@entry=16, k=k@entry=1)
at malloc.c:143
#6 0x00007f92ec2854f6 in GC_generic_malloc_many (lb=lb@entry=16, k=k@entry=1,
result=result@entry=0x7f92ec2b0458 <first_thread+312>) at mallocx.c:445
#7 0x00007f92ec290623 in GC_malloc_kind (bytes=16, knd=1) at thread_local_alloc.c:184
#8 0x00007f92ec28463a in GC_malloc (lb=<optimized out>) at malloc.c:294
#9 0x00007f92ec353b73 in scm_cell (cdr=772, car=140268964272160)
at ../libguile/gc.h:161
#10 scm_cons (y=0x304, x=0x7f92e9c9d820) at pairs.h:155
#11 scm_append (args=<optimized out>) at list.c:255
#12 0x00007f92e9a2c7a0 in ?? ()
#13 0x00007f92eb99fd80 in ?? ()
#14 0x00007f92ec418880 in ?? ()
from /gnu/store/gjr8c5qibb1v8clbafsr3a1xn9h4wb9y-guile-next-3.0.1/lib/libguile-3.0.so.1
#15 0x00007f92eb99fd80 in ?? ()
#16 0x00007f92ec352f0b in scm_jit_enter_mcode (thread=0x7f92eb99fd80,
mcode=0x7f92e8b66e70 "H\203\350\060I\211\314I)\304I\203\374@\017\205\263\006")
at jit.c:5777
#17 0x00007f92ec3ae4b9 in vm_regular_engine (thread=0x7f92caf2e5e0) at vm-engine.c:360
#18 0x00007f92ec3af155 in scm_call_n (proc=<optimized out>,
argv=argv@entry=0x7ffec93ceb48, nargs=nargs@entry=1) at vm.c:1600
#19 0x00007f92ec32d207 in scm_primitive_eval (exp=<optimized out>) at eval.c:671
#20 0x00007f92ec354bcb in scm_primitive_load (filename=filename@entry=0x7f92cfa84f40)
at load.c:131
#21 0x00007f92ec356078 in scm_primitive_load_path (args=<optimized out>) at load.c:1267
#22 0x00007f92e96ceef0 in ?? ()
#23 0x00007f92eb99fd80 in ?? ()
#24 0x00007f92ec418880 in ?? ()
from /gnu/store/gjr8c5qibb1v8clbafsr3a1xn9h4wb9y-guile-next-3.0.1/lib/libguile-3.0.so.1
#25 0x00007f92eb99fd80 in ?? ()
#26 0x00007f92ec352f0b in scm_jit_enter_mcode (thread=0x7f92eb99fd80,
mcode=0x7f92e8b66e70 "H\203\350\060I\211\314I)\304I\203\374@\017\205\263\006")
at jit.c:5777
#27 0x00007f92ec3ae4b9 in vm_regular_engine (thread=0x7f92cf24c850) at vm-engine.c:360
#28 0x00007f92ec3af155 in scm_call_n (proc=<optimized out>,
argv=argv@entry=0x7ffec93ceed8, nargs=nargs@entry=1) at vm.c:1600
#29 0x00007f92ec32d207 in scm_primitive_eval (exp=<optimized out>) at eval.c:671
#30 0x00007f92ec354bcb in scm_primitive_load (filename=filename@entry=0x7f92cfa57440)
at load.c:131
#31 0x00007f92ec356078 in scm_primitive_load_path (args=<optimized out>) at load.c:1267
#32 0x00007f92e96ceef0 in ?? ()
#33 0x00007f92eb99fd80 in ?? ()
#34 0x00007f92ec418880 in ?? ()
from /gnu/store/gjr8c5qibb1v8clbafsr3a1xn9h4wb9y-guile-next-3.0.1/lib/libguile-3.0.so.1
#35 0x00007f92eb99fd80 in ?? ()
#36 0x00007f92ec352f0b in scm_jit_enter_mcode (thread=0x7f92eb99fd80,
mcode=0x7f92e39387f0 "I\211\314I)\304I\203\374\020\017\217", <incomplete sequence \344>) at jit.c:5777
#37 0x00007f92ec3ae7a8 in vm_regular_engine (thread=0x7f92cf219410) at vm-engine.c:374
#38 0x00007f92ec3af155 in scm_call_n (proc=<optimized out>,
argv=argv@entry=0x7ffec93cf268, nargs=nargs@entry=1) at vm.c:1600
#39 0x00007f92ec32d207 in scm_primitive_eval (exp=<optimized out>) at eval.c:671
#40 0x00007f92ec354bcb in scm_primitive_load (filename=<optimized out>) at load.c:131
#41 0x00007f92ec3add1c in vm_regular_engine (thread=0x7f92eb99fd80) at vm-engine.c:972
#42 0x00007f92ec3af155 in scm_call_n (proc=<optimized out>,
argv=argv@entry=0x7ffec93cf438, nargs=nargs@entry=1) at vm.c:1600
#43 0x00007f92ec32d207 in scm_primitive_eval (exp=<optimized out>,
exp@entry=0x7f92e98c4fe0) at eval.c:671
#44 0x00007f92ec32d263 in scm_eval (exp=0x7f92e98c4fe0,
module_or_state=module_or_state@entry=0x7f92e98a7f00) at eval.c:705
#45 0x00007f92ec385080 in scm_shell (argc=834, argv=0x7ffec93cfa98) at script.c:357
#46 0x00007f92ec344c0d in invoke_main_func (body_data=0x7ffec93cf940) at init.c:308
#47 0x00007f92ec327e5a in c_body (d=0x7ffec93cf880) at continuations.c:430
#48 0x00007f92ec3add1c in vm_regular_engine (thread=0x7f92eb99fd80) at vm-engine.c:972
#49 0x00007f92ec3af155 in scm_call_n (proc=<optimized out>,
argv=argv@entry=0x7ffec93cf640, nargs=nargs@entry=2) at vm.c:1600
#50 0x00007f92ec32c09a in scm_call_2 (proc=<optimized out>, arg1=<optimized out>,
arg2=<optimized out>) at eval.c:503
#51 0x00007f92ec32d89a in scm_c_with_exception_handler (type=type@entry=0x404,
handler=handler@entry=0x7f92ec3a4580 <catch_post_unwind_handler>,
handler_data=handler_data@entry=0x7ffec93cf7b0,
thunk=thunk@entry=0x7f92ec3a46c0 <catch_body>,
thunk_data=thunk_data@entry=0x7ffec93cf7b0) at exceptions.c:170
#52 0x00007f92ec3a48bd in scm_c_catch (tag=tag@entry=0x404,
body=body@entry=0x7f92ec327e50 <c_body>, body_data=body_data@entry=0x7ffec93cf880,
handler=handler@entry=0x7f92ec3280f0 <c_handler>,
handler_data=handler_data@entry=0x7ffec93cf880,
pre_unwind_handler=pre_unwind_handler@entry=0x7f92ec327f50 <pre_unwind_handler>,
pre_unwind_handler_data=0x7f92e9c763c0) at throw.c:168
#53 0x00007f92ec328403 in scm_i_with_continuation_barrier (
body=body@entry=0x7f92ec327e50 <c_body>, body_data=body_data@entry=0x7ffec93cf880,
handler=handler@entry=0x7f92ec3280f0 <c_handler>,
handler_data=handler_data@entry=0x7ffec93cf880,
pre_unwind_handler=pre_unwind_handler@entry=0x7f92ec327f50 <pre_unwind_handler>,
pre_unwind_handler_data=0x7f92e9c763c0) at continuations.c:368
#54 0x00007f92ec328495 in scm_c_with_continuation_barrier (func=<optimized out>,
data=<optimized out>) at continuations.c:464
#55 0x00007f92ec3a335f in with_guile (base=base@entry=0x7ffec93cf8e8,
data=data@entry=0x7ffec93cf910) at threads.c:645
#56 0x00007f92ec289a68 in GC_call_with_stack_base (
fn=fn@entry=0x7f92ec3a3310 <with_guile>, arg=arg@entry=0x7ffec93cf910)
at misc.c:1941
#57 0x00007f92ec3a3678 in scm_i_with_guile (dynamic_state=<optimized out>,
data=data@entry=0x7ffec93cf910, func=func@entry=0x7f92ec344bf0 <invoke_main_func>)
at threads.c:688
#58 scm_with_guile (func=func@entry=0x7f92ec344bf0 <invoke_main_func>,
data=data@entry=0x7ffec93cf940) at threads.c:694
#59 0x00007f92ec344d82 in scm_boot_guile (argc=argc@entry=834,
argv=argv@entry=0x7ffec93cfa98, main_func=main_func@entry=0x401240 <inner_main>,
closure=closure@entry=0x0) at init.c:291
#60 0x0000000000401100 in main (argc=834, argv=0x7ffec93cfa98) at guile.c:95
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7f92ebcc3b80 (LWP 6259) GC_clear_fl_marks (q=<optimized out>) at alloc.c:880
2 Thread 0x7f92ea67b700 (LWP 6266) 0x00007f92ec257efc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
3 Thread 0x7f92e79fd700 (LWP 6276) 0x00007f92ec25b344 in read () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
4 Thread 0x7f92e9623700 (LWP 6271) 0x00007f92ec25b344 in read () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
5 Thread 0x7f92eb00c700 (LWP 6265) 0x00007f92ec257efc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
6 Thread 0x7f92eb99d700 (LWP 6264) 0x00007f92ec257efc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0

Setting GUILE_JIT_THRESHOLD=-1, the thing goes further without
segfaulting, but then it hangs with:

Toggle snippet (11 lines)
[ 50%] LOAD guix/store/ssh.scm
[ 50%] LOAD guix/scripts/offload.scm
Backtrace:
[ 50%] LOAD guix/store/database.scm
[ 50%] LOAD guix/store/deduplication.scm
[ 50%] LOAD guix/store/roots.scm
[ 50%] LOAD guix/config.scm
[ 50%] LOAD guix/tests.scm
[ 50%] LOAD guix/tests/http.scm

Apparently a deadlock on ‘all_weak_tables_lock’:

Toggle snippet (41 lines)
(gdb) bt
#0 0x00007f9a51bc00bc in __lll_lock_wait () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#1 0x00007f9a51bb9674 in pthread_mutex_lock () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#2 0x00007f9a51d1624f in scm_c_make_weak_table (k=<optimized out>, kind=SCM_WEAK_TABLE_KIND_KEY) at weak-table.c:505
#3 0x00007f9a51d12d1c in vm_regular_engine (thread=0x7f9a51304d80) at vm-engine.c:972
#4 0x00007f9a51d14155 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7ffc439d27d8, nargs=nargs@entry=1) at vm.c:1600
#5 0x00007f9a51c92207 in scm_primitive_eval (exp=<optimized out>) at eval.c:671
#6 0x00007f9a51cb9bcb in scm_primitive_load (filename=<optimized out>) at load.c:131
#7 0x00007f9a51d12d1c in vm_regular_engine (thread=0x7f9a51304d80) at vm-engine.c:972
#8 0x00007f9a51d14155 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7ffc439d29a8, nargs=nargs@entry=1) at vm.c:1600
#9 0x00007f9a51c92207 in scm_primitive_eval (exp=<optimized out>, exp@entry=0x7f9a4f269fe0) at eval.c:671
#10 0x00007f9a51c92263 in scm_eval (exp=0x7f9a4f269fe0, module_or_state=module_or_state@entry=0x7f9a4f24cf00) at eval.c:705
#11 0x00007f9a51cea080 in scm_shell (argc=834, argv=0x7ffc439d3008) at script.c:357
#12 0x00007f9a51ca9c0d in invoke_main_func (body_data=0x7ffc439d2eb0) at init.c:308
#13 0x00007f9a51c8ce5a in c_body (d=0x7ffc439d2df0) at continuations.c:430
#14 0x00007f9a51d12d1c in vm_regular_engine (thread=0x7f9a51304d80) at vm-engine.c:972
#15 0x00007f9a51d14155 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7ffc439d2bb0, nargs=nargs@entry=2) at vm.c:1600
#16 0x00007f9a51c9109a in scm_call_2 (proc=<optimized out>, arg1=<optimized out>, arg2=<optimized out>) at eval.c:503
#17 0x00007f9a51c9289a in scm_c_with_exception_handler (type=type@entry=0x404, handler=handler@entry=0x7f9a51d09580 <catch_post_unwind_handler>, handler_data=handler_data@entry=0x7ffc439d2d20,
thunk=thunk@entry=0x7f9a51d096c0 <catch_body>, thunk_data=thunk_data@entry=0x7ffc439d2d20) at exceptions.c:170
#18 0x00007f9a51d098bd in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x7f9a51c8ce50 <c_body>, body_data=body_data@entry=0x7ffc439d2df0, handler=handler@entry=0x7f9a51c8d0f0 <c_handler>,
handler_data=handler_data@entry=0x7ffc439d2df0, pre_unwind_handler=pre_unwind_handler@entry=0x7f9a51c8cf50 <pre_unwind_handler>, pre_unwind_handler_data=0x7f9a4f5db3c0) at throw.c:168
#19 0x00007f9a51c8d403 in scm_i_with_continuation_barrier (body=body@entry=0x7f9a51c8ce50 <c_body>, body_data=body_data@entry=0x7ffc439d2df0, handler=handler@entry=0x7f9a51c8d0f0 <c_handler>,
handler_data=handler_data@entry=0x7ffc439d2df0, pre_unwind_handler=pre_unwind_handler@entry=0x7f9a51c8cf50 <pre_unwind_handler>, pre_unwind_handler_data=0x7f9a4f5db3c0) at continuations.c:368
#20 0x00007f9a51c8d495 in scm_c_with_continuation_barrier (func=<optimized out>, data=<optimized out>) at continuations.c:464
#21 0x00007f9a51d0835f in with_guile (base=base@entry=0x7ffc439d2e58, data=data@entry=0x7ffc439d2e80) at threads.c:645
#22 0x00007f9a51beea68 in GC_call_with_stack_base (fn=fn@entry=0x7f9a51d08310 <with_guile>, arg=arg@entry=0x7ffc439d2e80) at misc.c:1941
#23 0x00007f9a51d08678 in scm_i_with_guile (dynamic_state=<optimized out>, data=data@entry=0x7ffc439d2e80, func=func@entry=0x7f9a51ca9bf0 <invoke_main_func>) at threads.c:688
#24 scm_with_guile (func=func@entry=0x7f9a51ca9bf0 <invoke_main_func>, data=data@entry=0x7ffc439d2eb0) at threads.c:694
#25 0x00007f9a51ca9d82 in scm_boot_guile (argc=argc@entry=834, argv=argv@entry=0x7ffc439d3008, main_func=main_func@entry=0x401240 <inner_main>, closure=closure@entry=0x0) at init.c:291
#26 0x0000000000401100 in main (argc=834, argv=0x7ffc439d3008) at guile.c:95
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7f9a51628b80 (LWP 7003) "guile" 0x00007f9a51bc00bc in __lll_lock_wait () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
2 Thread 0x7f9a51302700 (LWP 7006) "guile" 0x00007f9a51bbcefc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
3 Thread 0x7f9a50971700 (LWP 7007) "guile" 0x00007f9a51bbcefc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
4 Thread 0x7f9a4ffe0700 (LWP 7008) "guile" 0x00007f9a51bbcefc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
5 Thread 0x7f9a4f008700 (LWP 7009) "guile" 0x00007f9a51bbcefc in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
6 Thread 0x7f9a4d522700 (LWP 7010) "guile" 0x00007f9a51bc0344 in read () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0

To be continued…

Ludo’.
L
L
Ludovic Courtès wrote on 9 Mar 2020 09:20
control message for bug #39988
(address . control@debbugs.gnu.org)
87y2sa547t.fsf@gnu.org
severity 39988 important
quit
L
L
Ludovic Courtès wrote on 9 Mar 2020 10:11
Re: bug#39988: [3.0.1] Segfault in GC
87mu8p6gf4.fsf@gnu.org
Ludovic Courtès <ludo@gnu.org> skribis:

Toggle quote (2 lines)
> Apparently a deadlock on ‘all_weak_tables_lock’:

I reproduced the deadlock:

Toggle snippet (196 lines)
(gdb) thread 1
[Switching to thread 1 (Thread 0x7faee3633b80 (LWP 5809))]
#0 0x00007faee3bcb0bc in __lll_lock_wait ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
(gdb) bt
#0 0x00007faee3bcb0bc in __lll_lock_wait ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#1 0x00007faee3bc4674 in pthread_mutex_lock ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#2 0x00007faee3d22a2f in scm_c_make_weak_table (k=<optimized out>, kind=SCM_WEAK_TABLE_KIND_KEY)
at weak-table.c:505
#3 0x00007faee139814b in ?? ()
#4 0x00007faee330fd80 in ?? ()
#5 0x00007faee3d89860 in ?? ()
from /gnu/store/s5p2yja08zcg6j56y1wfvnm6nxiyllz1-guile-next-3.0.1/lib/libguile-3.0.so.1
#6 0x00007faee330fd80 in ?? ()
#7 0x00007faee3cc46eb in scm_jit_enter_mcode (thread=0x7faee330fd80,
mcode=0x7faedb2a87f0 "I\211\314I)\304I\203\374\020\017\217", <incomplete sequence \344>) at jit.c:5725
#8 0x00007faee3d1ff88 in vm_regular_engine (thread=0x7faed63eab30) at vm-engine.c:374
#9 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7fff3f56ce98, nargs=nargs@entry=1)
at vm.c:1600
#10 0x00007faee3c9d1e7 in scm_primitive_eval (exp=<optimized out>) at eval.c:671
#11 0x00007faee3cc63ab in scm_primitive_load (filename=<optimized out>) at load.c:131
#12 0x00007faee3d1f4fc in vm_regular_engine (thread=0x7faee330fd80) at vm-engine.c:972
#13 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7fff3f56d068, nargs=nargs@entry=1)
at vm.c:1600
#14 0x00007faee3c9d1e7 in scm_primitive_eval (exp=<optimized out>,
exp@entry=((@ (ice-9 control) %) (begin (set! %load-path (cons "." %load-path)) (set! %load-path (cons "." %load-path)) ((@@ (ice-9 command-line) load/lang) "./build-aux/compile-all.scm") (quit)))) at eval.c:671
#15 0x00007faee3c9d243 in scm_eval (
exp=((@ (ice-9 control) %) (begin (set! %load-path (cons "." %load-path)) (set! %load-path (cons "." %load-path)) ((@@ (ice-9 command-line) load/lang) "./build-aux/compile-all.scm") (quit))),
module_or_state=module_or_state@entry="#<struct module>" = {...}) at eval.c:705
#16 0x00007faee3cf6860 in scm_shell (argc=834, argv=0x7fff3f56d6c8) at script.c:357
#17 0x00007faee3cb4bed in invoke_main_func (body_data=0x7fff3f56d570) at init.c:308
#18 0x00007faee3c97e3a in c_body (d=0x7fff3f56d4b0) at continuations.c:430
#19 0x00007faee3d1f4fc in vm_regular_engine (thread=0x7faee330fd80) at vm-engine.c:972
#20 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7fff3f56d270, nargs=nargs@entry=2)
at vm.c:1600
#21 0x00007faee3c9c07a in scm_call_2 (proc=<optimized out>, arg1=<optimized out>, arg2=<optimized out>)
at eval.c:503
#22 0x00007faee3c9d87a in scm_c_with_exception_handler (type=type@entry=#t,
handler=handler@entry=0x7faee3d15d60 <catch_post_unwind_handler>,
handler_data=handler_data@entry=0x7fff3f56d3e0, thunk=thunk@entry=0x7faee3d15ea0 <catch_body>,
thunk_data=thunk_data@entry=0x7fff3f56d3e0) at exceptions.c:170
#23 0x00007faee3d1609d in scm_c_catch (tag=tag@entry=#t, body=body@entry=0x7faee3c97e30 <c_body>,
body_data=body_data@entry=0x7fff3f56d4b0, handler=handler@entry=0x7faee3c980d0 <c_handler>,
handler_data=handler_data@entry=0x7fff3f56d4b0,
pre_unwind_handler=pre_unwind_handler@entry=0x7faee3c97f30 <pre_unwind_handler>,
pre_unwind_handler_data=0x7faee15e63c0) at throw.c:168
#24 0x00007faee3c983e3 in scm_i_with_continuation_barrier (body=body@entry=0x7faee3c97e30 <c_body>,
body_data=body_data@entry=0x7fff3f56d4b0, handler=handler@entry=0x7faee3c980d0 <c_handler>,
handler_data=handler_data@entry=0x7fff3f56d4b0,
pre_unwind_handler=pre_unwind_handler@entry=0x7faee3c97f30 <pre_unwind_handler>,
pre_unwind_handler_data=0x7faee15e63c0) at continuations.c:368
#25 0x00007faee3c98475 in scm_c_with_continuation_barrier (func=<optimized out>, data=<optimized out>)
at continuations.c:464
#26 0x00007faee3d14b3f in with_guile (base=base@entry=0x7fff3f56d518, data=data@entry=0x7fff3f56d540)
at threads.c:645
#27 0x00007faee3bf9a68 in GC_call_with_stack_base (fn=fn@entry=0x7faee3d14af0 <with_guile>,
arg=arg@entry=0x7fff3f56d540) at misc.c:1941
#28 0x00007faee3d14e58 in scm_i_with_guile (dynamic_state=<optimized out>, data=data@entry=0x7fff3f56d540,
func=func@entry=0x7faee3cb4bd0 <invoke_main_func>) at threads.c:688
#29 scm_with_guile (func=func@entry=0x7faee3cb4bd0 <invoke_main_func>, data=data@entry=0x7fff3f56d570)
at threads.c:694
#30 0x00007faee3cb4d62 in scm_boot_guile (argc=argc@entry=834, argv=argv@entry=0x7fff3f56d6c8,
main_func=main_func@entry=0x401240 <inner_main>, closure=closure@entry=0x0) at init.c:291
#31 0x0000000000401100 in main (argc=834, argv=0x7fff3f56d6c8) at guile.c:95
(gdb) thread 5
[Switching to thread 5 (Thread 0x7faee0f93700 (LWP 5815))]
#0 0x00007faee3bc7efc in pthread_cond_wait@@GLIBC_2.3.2 ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
(gdb) bt
#0 0x00007faee3bc7efc in pthread_cond_wait@@GLIBC_2.3.2 ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#1 0x00007faee3d15355 in scm_pthread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at threads.c:1605
#2 0x00007faee3d15523 in block_self (queue=((#<unmatched-tag 277>) #<unmatched-tag 277>),
mutex=mutex@entry=0x7faee1201f80, waittime=waittime@entry=0x0) at threads.c:312
#3 0x00007faee3d15657 in lock_mutex (current_thread=0x7faee330fb40, waittime=0x0, m=0x7faee1201f80,
kind=SCM_MUTEX_RECURSIVE) at threads.c:1021
#4 scm_timed_lock_mutex (mutex=#<unmatched-tag 10377>, timeout=<optimized out>) at threads.c:1085
#5 0x00007faee13a663f in ?? ()
#6 0x00007faee330fb40 in ?? ()
#7 0x00007faee3d89860 in ?? ()
from /gnu/store/s5p2yja08zcg6j56y1wfvnm6nxiyllz1-guile-next-3.0.1/lib/libguile-3.0.so.1
#8 0x00007faee330fb40 in ?? ()
#9 0x00007faee3cc46eb in scm_jit_enter_mcode (thread=0x7faee330fb40,
mcode=0x7faee1396410 "I\211\314I)\304I\203\374\020\017\214\272\002") at jit.c:5725
#10 0x00007faee3d1fc99 in vm_regular_engine (thread=0x7faee155ace8) at vm-engine.c:360
#11 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7faee0f92090, nargs=nargs@entry=3)
at vm.c:1600
#12 0x00007faee3c9c09f in scm_call_3 (proc=<optimized out>, arg1=arg1@entry=(guile), arg2=<optimized out>,
arg3=arg3@entry=#f) at eval.c:510
#13 0x00007faee3ccbf2f in scm_maybe_resolve_module (name=name@entry=(guile)) at modules.c:195
#14 0x00007faee3cb8898 in resolve_module (name=(guile), public_p=<optimized out>) at intrinsics.c:317
#15 0x00007faee3d1ef94 in vm_regular_engine (thread=0x7faee330fb40) at vm-engine.c:1583
#16 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7faee0f92278, nargs=nargs@entry=1)
at vm.c:1600
#17 0x00007faee3c9c058 in scm_call_1 (proc=<optimized out>, arg1=<optimized out>) at eval.c:496
#18 0x00007faee3d1f4fc in vm_regular_engine (thread=0x7faee330fb40) at vm-engine.c:972
#19 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7faee0f92420, nargs=nargs@entry=4)
at vm.c:1600
#20 0x00007faee3c9c0d4 in scm_call_4 (proc=<optimized out>, arg1=arg1@entry="#<vector>" = {...},
arg2=arg2@entry=#<port #<port-type file 7faee159ab40> 7faee15e63c0>, arg3=arg3@entry=#:count,
arg4=arg4@entry=20) at eval.c:517
#21 0x00007faee3c8f5f9 in display_backtrace_body (a=<optimized out>) at backtrace.c:239
#22 0x00007faee3c9d87a in scm_c_with_exception_handler (type=type@entry=#t,
handler=handler@entry=0x7faee3d15d60 <catch_post_unwind_handler>,
handler_data=handler_data@entry=0x7faee0f925d0, thunk=thunk@entry=0x7faee3d15ea0 <catch_body>,
thunk_data=thunk_data@entry=0x7faee0f925d0) at exceptions.c:170
#23 0x00007faee3d1609d in scm_c_catch (tag=tag@entry=#t, body=body@entry=0x7faee3c8f4d0 <display_backtrace_body>,
body_data=body_data@entry=0x7faee0f92640, handler=handler@entry=0x7faee3c8f8b0 <error_during_backtrace>,
handler_data=handler_data@entry=0x7faee15e63c0, pre_unwind_handler=pre_unwind_handler@entry=0x0,
pre_unwind_handler_data=0x0) at throw.c:168
#24 0x00007faee3d160be in scm_internal_catch (tag=tag@entry=#t,
body=body@entry=0x7faee3c8f4d0 <display_backtrace_body>, body_data=body_data@entry=0x7faee0f92640,
handler=handler@entry=0x7faee3c8f8b0 <error_during_backtrace>, handler_data=handler_data@entry=0x7faee15e63c0)
at throw.c:177
#25 0x00007faee3c8f4c5 in scm_display_backtrace_with_highlights (stack=stack@entry="#<struct stack>" = {...},
port=port@entry=#<port #<port-type file 7faee159ab40> 7faee15e63c0>, first=first@entry=#f,
depth=depth@entry=#f, highlights=highlights@entry=()) at backtrace.c:277
#26 0x00007faee3c9801f in print_exception_and_backtrace (
args=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee11f7f50, tag=wrong-type-arg,
port=#<port #<port-type file 7faee159ab40> 7faee15e63c0>) at continuations.c:409
#27 pre_unwind_handler (error_port=0x7faee15e63c0, tag=wrong-type-arg,
args=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee11f7f50)
at continuations.c:453
#28 0x00007faee3d15e1b in catch_pre_unwind_handler (data=0x7faee0f92d80,
exn=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee11f7980) at throw.c:135
#29 0x00007faee3d1f4fc in vm_regular_engine (thread=0x7faee330fb40) at vm-engine.c:972
#30 0x00007faee3d20935 in scm_call_n (proc=proc@entry=#<unmatched-tag 10045>, argv=<optimized out>, nargs=5)
at vm.c:1600
#31 0x00007faee3c9c3d4 in scm_apply_0 (proc=#<unmatched-tag 10045>, args=()) at eval.c:603
#32 0x00007faee3c9d07d in scm_apply_1 (proc=<optimized out>, arg1=arg1@entry=wrong-type-arg,
args=args@entry=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d5610)
at eval.c:609
#33 0x00007faee3d16259 in scm_throw (key=key@entry=wrong-type-arg,
args=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d5610) at throw.c:262
#34 0x00007faee3d163a9 in scm_ithrow (key=key@entry=wrong-type-arg, args=<optimized out>,
no_return=no_return@entry=1) at throw.c:457
#35 0x00007faee3c9a585 in scm_error_scm (key=key@entry=wrong-type-arg, subr=<optimized out>,
message=message@entry="Wrong type argument in position ~A (expecting ~A): ~S",
args=args@entry=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d59a0,
data=data@entry=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d5ab0)
at error.c:90
#36 0x00007faee3c9a61f in scm_error (key=wrong-type-arg,
subr=subr@entry=0x7faee3d4bf60 <s_scm_weak_vector_ref> "weak-vector-ref",
message=message@entry=0x7faee3d3d490 "Wrong type argument in position ~A (expecting ~A): ~S",
args=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d59a0,
rest=rest@entry=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faee10d5ab0)
at error.c:62
#37 0x00007faee3c9a9e0 in scm_wrong_type_arg_msg (
subr=subr@entry=0x7faee3d4bf60 <s_scm_weak_vector_ref> "weak-vector-ref", pos=pos@entry=1,
bad_value=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faec8cc8980,
szMessage=szMessage@entry=0x7faee3d4bee0 "weak vector") at error.c:282
#38 0x00007faee3d23716 in scm_c_weak_vector_ref (wv=<optimized out>, k=k@entry=0) at weak-vector.c:193
#39 0x00007faee3d22838 in scm_i_weak_car (
pair=<error reading variable: ERROR: Cannot access memory at address 0x0>0x7faec7c7d7e0) at weak-list.h:39
#40 scm_i_visit_weak_list (list_loc=0x7faee3d8a868 <all_weak_tables>, visit=<optimized out>) at weak-list.h:49
#41 vacuum_all_weak_tables () at weak-table.c:494
#42 0x00007faee3ca5f2e in async_gc_finalizer (ptr=0x7faee3312ea0, data=0x0) at finalizers.c:316
#43 0x00007faee3bf26ef in GC_invoke_finalizers () at finalize.c:1276
#44 0x00007faee3ca63c9 in scm_run_finalizers () at finalizers.c:398
#45 0x00007faee3ca643d in finalization_thread_proc (unused=<optimized out>) at finalizers.c:233
#46 0x00007faee3c97e3a in c_body (d=0x7faee0f92e50) at continuations.c:430
#47 0x00007faee3d1f4fc in vm_regular_engine (thread=0x7faee330fb40) at vm-engine.c:972
#48 0x00007faee3d20935 in scm_call_n (proc=<optimized out>, argv=argv@entry=0x7faee0f92c10, nargs=nargs@entry=2)
at vm.c:1600
#49 0x00007faee3c9c07a in scm_call_2 (proc=<optimized out>, arg1=<optimized out>, arg2=<optimized out>)
at eval.c:503
#50 0x00007faee3c9d87a in scm_c_with_exception_handler (type=type@entry=#t,
handler=handler@entry=0x7faee3d15d60 <catch_post_unwind_handler>,
handler_data=handler_data@entry=0x7faee0f92d80, thunk=thunk@entry=0x7faee3d15ea0 <catch_body>,
thunk_data=thunk_data@entry=0x7faee0f92d80) at exceptions.c:170
#51 0x00007faee3d1609d in scm_c_catch (tag=tag@entry=#t, body=body@entry=0x7faee3c97e30 <c_body>,
body_data=body_data@entry=0x7faee0f92e50, handler=handler@entry=0x7faee3c980d0 <c_handler>,
handler_data=handler_data@entry=0x7faee0f92e50,
pre_unwind_handler=pre_unwind_handler@entry=0x7faee3c97f30 <pre_unwind_handler>,
pre_unwind_handler_data=0x7faee15e63c0) at throw.c:168
#52 0x00007faee3c983e3 in scm_i_with_continuation_barrier (body=body@entry=0x7faee3c97e30 <c_body>,
body_data=body_data@entry=0x7faee0f92e50, handler=handler@entry=0x7faee3c980d0 <c_handler>,
handler_data=handler_data@entry=0x7faee0f92e50,
pre_unwind_handler=pre_unwind_handler@entry=0x7faee3c97f30 <pre_unwind_handler>,
pre_unwind_handler_data=0x7faee15e63c0) at continuations.c:368
#53 0x00007faee3c98475 in scm_c_with_continuation_barrier (func=<optimized out>, data=<optimized out>)
at continuations.c:464
#54 0x00007faee3d14b3f in with_guile (base=base@entry=0x7faee0f92eb8, data=data@entry=0x7faee0f92ee0)
at threads.c:645
#55 0x00007faee3bf9a68 in GC_call_with_stack_base (fn=fn@entry=0x7faee3d14af0 <with_guile>,
arg=arg@entry=0x7faee0f92ee0) at misc.c:1941
#56 0x00007faee3d14e58 in scm_i_with_guile (dynamic_state=<optimized out>, data=<optimized out>,
func=<optimized out>) at threads.c:688
#57 scm_with_guile (func=<optimized out>, data=<optimized out>) at threads.c:694
#58 0x00007faee3bc2015 in start_thread ()
from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libpthread.so.0
#59 0x00007faee372891f in clone () from /gnu/store/ahqgl4h89xqj695lgqvsaf6zh2nhy4pj-glibc-2.29/lib/libc.so.6

It stems from the bug described in

Ludo’.
L
L
Ludovic Courtès wrote on 10 Mar 2020 18:23
control message for bug #39266
(address . control@debbugs.gnu.org)
87k13st98e.fsf@gnu.org
merge 39266 39988
quit
L
L
Ludovic Courtès wrote on 11 Mar 2020 21:21
(address . control@debbugs.gnu.org)
87v9nafxr4.fsf@gnu.org
retitle 39266 Heap corruption leads to random crashes
quit
L
L
Ludovic Courtès wrote on 12 Mar 2020 16:59
(address . control@debbugs.gnu.org)
87eetxsgwj.fsf@gnu.org
merge 39266 36811
quit
L
L
Ludovic Courtès wrote on 12 Mar 2020 17:01
(address . control@debbugs.gnu.org)
878sk5sgt1.fsf@gnu.org
merge 39266 39208
quit
?
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