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From: "wacrenier at labri dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libgomp/104385] Segmentation fault when using nested dependent tasks
Date: Fri, 04 Feb 2022 23:25:08 +0000 [thread overview]
Message-ID: <bug-104385-4-Z4rtmdM97J@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-104385-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104385
--- Comment #3 from P.A. Wacrenier <wacrenier at labri dot fr> ---
gdb output (x86_64 linux)
Thread 22 "a.out" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffedd10700 (LWP 1363311)]
priority_list_downgrade_task (child_task=0x7fffe0000cc0, list=0x7fffe00008d0,
type=PQ_CHILDREN) at ../.././libgomp/task.c:991
991 ../.././libgomp/task.c: Aucun fichier ou dossier de ce type.
(gdb) thread 22
[Switching to thread 22 (Thread 0x7fffedd10700 (LWP 1363311))]
#0 priority_list_downgrade_task (child_task=0x7fffe0000cc0,
list=0x7fffe00008d0, type=PQ_CHILDREN) at ../.././libgomp/task.c:991
991 in ../.././libgomp/task.c
(gdb) bt full
#0 priority_list_downgrade_task (child_task=0x7fffe0000cc0,
list=0x7fffe00008d0, type=PQ_CHILDREN) at ../.././libgomp/task.c:991
next_task = 0xffffffffffffff90
node = 0x7fffe0000d30
node = <optimized out>
next_task = <optimized out>
prev_child = <optimized out>
#1 priority_queue_downgrade_task (task=0x7fffe0000cc0, head=<optimized out>,
type=PQ_CHILDREN) at ../.././libgomp/task.c:1047
list = 0x7fffe00008d0
#2 priority_queue_downgrade_task (task=0x7fffe0000cc0, head=<optimized out>,
type=PQ_CHILDREN) at ../.././libgomp/task.c:1035
list = <optimized out>
#3 gomp_task_run_pre (child_task=child_task@entry=0x7fffe0000cc0,
parent=<optimized out>, team=team@entry=0x405350)
at ../.././libgomp/task.c:1077
taskgroup = <optimized out>
#4 0x00007ffff7fa315c in gomp_barrier_handle_tasks (state=state@entry=0) at
../.././libgomp/task.c:1335
ignored = true
cancelled = false
thr = <optimized out>
team = 0x405350
task = <optimized out>
child_task = 0x7fffe0000cc0
to_free = 0x7fffe0000b20
do_wake = 0
#5 0x00007ffff7faa7f8 in gomp_team_barrier_wait_end (bar=<optimized out>,
state=0) at ../.././libgomp/config/linux/bar.c:116
generation = 0
gen = <optimized out>
#6 0x00007ffff7faa8da in gomp_team_barrier_wait_final (bar=bar@entry=0x4053d0)
at ../.././libgomp/config/linux/bar.c:136
state = <optimized out>
#7 0x00007ffff7fa7e12 in gomp_thread_start (xdata=<optimized out>) at
../.././libgomp/team.c:124
team = 0x405350
task = 0x4069a0
data = <optimized out>
thr = <optimized out>
pool = 0x405280
local_fn = 0x401201 <main._omp_fn.0>
local_data = 0x7fffffffdec8
--Type <RET> for more, q to quit, c to continue without paging--
#8 0x00007ffff7ef4fa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
ret = <optimized out>
pd = <optimized out>
now = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737183287040,
-8592581161367667977, 140737488341950, 140737488341951,
140737183287040, -120, 8592550692851776247,
8592563709294246647}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0,
0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
not_first_call = <optimized out>
#9 0x00007ffff7e254cf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
next prev parent reply other threads:[~2022-02-04 23:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-04 16:42 [Bug libgomp/104385] New: " wacrenier at labri dot fr
2022-02-04 22:57 ` [Bug libgomp/104385] " pinskia at gcc dot gnu.org
2022-02-04 23:19 ` wacrenier at labri dot fr
2022-02-04 23:25 ` wacrenier at labri dot fr [this message]
2022-02-04 23:31 ` pinskia at gcc dot gnu.org
2022-02-05 0:07 ` jakub at gcc dot gnu.org
2022-02-05 2:37 ` pinskia at gcc dot gnu.org
2022-02-07 18:11 ` jakub at gcc dot gnu.org
2022-02-08 8:36 ` cvs-commit at gcc dot gnu.org
2022-02-19 8:02 ` cvs-commit at gcc dot gnu.org
2022-05-10 8:23 ` cvs-commit at gcc dot gnu.org
2022-05-11 6:24 ` cvs-commit at gcc dot gnu.org
2022-05-11 6:36 ` jakub at gcc dot gnu.org
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