INFO: task hung in ip6gre_exit_batch

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in ip6gre_exit_batch_net (6) net	1				1	1101d	1101d	0/29	closed as invalid on 2023/09/07 14:36
upstream	INFO: task hung in ip6gre_exit_batch_net (2) net	1				3	2433d	2434d	0/29	auto-closed as invalid on 2020/01/17 16:16
linux-5.15	INFO: task hung in ip6gre_exit_batch_net (2) origin:upstream	1	syz		error	1	236d	236d	0/3	upstream: reported syz repro on 2025/11/24 02:32
linux-6.1	INFO: task hung in ip6gre_exit_batch_net (2) origin:lts-only	1	C		done	1	64d	64d	3/3	fixed on 2026/06/16 10:34
linux-4.19	INFO: task hung in ip6gre_exit_batch_net (2)	1				1	2048d	2048d	0/1	auto-closed as invalid on 2021/04/06 21:09
linux-4.19	INFO: task hung in ip6gre_exit_batch_net (3)	1				7	1647d	1814d	0/1	auto-closed as invalid on 2022/05/13 06:16
upstream	INFO: task hung in ip6gre_exit_batch_net (4) net	1	syz	unreliable		44	1701d	1753d	0/29	closed as invalid on 2021/12/14 20:12
upstream	INFO: task hung in ip6gre_exit_batch_net net	1				6	2472d	2966d	0/29	closed as dup on 2018/06/04 15:23
linux-5.15	INFO: task hung in ip6gre_exit_batch_net	1				4	770d	787d	0/3	auto-obsoleted due to no activity on 2024/09/16 15:09
upstream	INFO: task hung in ip6gre_exit_batch_net (5) net	1				1	1479d	1479d	0/29	auto-closed as invalid on 2022/09/28 06:40
linux-4.19	INFO: task hung in ip6gre_exit_batch_net	1				1	2451d	2451d	0/1	auto-closed as invalid on 2020/02/29 06:17
upstream	INFO: task hung in ip6gre_exit_batch_net (3) net	1				18	1937d	2251d	0/29	auto-closed as invalid on 2021/06/27 10:57

INFO: task kworker/u4:0:9 blocked for more than 143 seconds. Not tainted 6.1.92-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:0 state:D stack:22368 pid:9 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: <TASK> context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 ip6gre_exit_batch_net+0xc0/0x460 net/ipv6/ip6_gre.c:1666 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x763/0xb60 net/core/net_namespace.c:604 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> INFO: task kworker/1:3:1170 blocked for more than 143 seconds. Not tainted 6.1.92-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:23872 pid:1170 ppid:2 flags:0x00004000 Workqueue: events request_firmware_work_func Call Trace: <TASK> context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 regdb_fw_cb+0x7e/0x1b0 net/wireless/reg.c:1053 request_firmware_work_func+0x199/0x270 drivers/base/firmware_loader/main.c:1107 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> INFO: task dhcpcd:3217 blocked for more than 143 seconds. Not tainted 6.1.92-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:20280 pid:3217 ppid:3216 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x45 kernel/sched/core.c:6558

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/06/08 14:37	linux-6.1.y	88690811da69	82c05ab8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in ip6gre_exit_batch_net

Crashes (1):

Assets (help?)