INFO: task hung in pipe

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in pipe_write (3) fs				1	1761d	1761d	0/28	auto-closed as invalid on 2020/04/25 05:37
android-44	INFO: task hung in pipe_write				1	2176d	2048d	0/2	auto-closed as invalid on 2019/06/05 06:19
upstream	INFO: task hung in rtnetlink_rcv_msg net	C	inconclusive	inconclusive	1970	135d	2099d	26/28	fixed on 2024/07/09 19:14
upstream	INFO: task hung in pipe_write (2) ext4	C	done		6	1890d	1890d	0/28	closed as invalid on 2019/09/28 02:25
upstream	INFO: task hung in pipe_write fs				8	2120d	2235d	0/28	auto-closed as invalid on 2019/07/30 21:09
android-44	INFO: task hung in pipe_write (2)				1	1816d	1816d	0/2	auto-closed as invalid on 2020/03/31 01:26
android-49	INFO: task hung in pipe_write	C			3	1842d	2048d	0/3	public: reported C repro on 2019/04/14 08:51
linux-4.19	INFO: task hung in pipe_write	C		error	13	729d	1628d	0/1	upstream: reported C repro on 2020/06/07 01:40
upstream	INFO: task hung in pipe_write (4) fs	syz	error		7	1028d	1575d	0/28	auto-obsoleted due to no activity on 2022/10/22 17:00
android-414	INFO: task hung in pipe_write				1	1864d	1864d	0/1	auto-closed as invalid on 2020/02/11 22:17
upstream	INFO: task can't die in pipe_write (2) fs				1	1128d	1124d	0/28	auto-closed as invalid on 2021/12/19 10:46
upstream	INFO: task can't die in pipe_write fs				1	1202d	1175d	0/28	auto-closed as invalid on 2021/10/06 11:40

Created	Duration	User	Patch	Repo	Result
2023/02/18 09:31	37m	bisect fix		linux-4.14.y	OK (0) job log log
2023/01/19 09:05	25m	bisect fix		linux-4.14.y	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2023/02/18 09:31

37m

bisect fix

linux-4.14.y

OK (0) job log log

2023/01/19 09:05

25m

bisect fix

linux-4.14.y

OK (0) job log log

INFO: task syz-executor285:7977 blocked for more than 140 seconds. Not tainted 4.14.295-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor285 D28056 7977 7975 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3489 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893 pipe_lock_nested fs/pipe.c:82 [inline] pipe_lock fs/pipe.c:90 [inline] pipe_wait+0x171/0x190 fs/pipe.c:138 pipe_write+0x510/0xe10 fs/pipe.c:505 call_write_iter include/linux/fs.h:1780 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44c/0x630 fs/read_write.c:482 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f11663f7b29 RSP: 002b:00007f11663a92f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f116647f428 RCX: 00007f11663f7b29 RDX: 00000000fffffecc RSI: 0000000020000000 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f116647f420 R13: 00007fffa7a56e2f R14: 00007f116647f42c R15: 00007f116644d074 Showing all locks held in the system: 1 lock held by khungtaskd/1533: #0: (tasklist_lock){.+.+}, at: [<ffffffff87024c59>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 1 lock held by syz-executor285/7977: #0: (&pipe->mutex/1){+.+.}, at: [<ffffffff8188b7b1>] pipe_lock_nested fs/pipe.c:82 [inline] #0: (&pipe->mutex/1){+.+.}, at: [<ffffffff8188b7b1>] pipe_lock fs/pipe.c:90 [inline] #0: (&pipe->mutex/1){+.+.}, at: [<ffffffff8188b7b1>] pipe_wait+0x171/0x190 fs/pipe.c:138 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7978 Comm: syz-executor285 Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 task: ffff8880b377a0c0 task.stack: ffff8880b3348000 RIP: 0010:__orc_find+0x5b/0xf0 arch/x86/kernel/unwind_orc.c:47 RSP: 0018:ffff8880b334ef58 EFLAGS: 00000202 RAX: 000000000000000d RBX: 1ffff11016669dfb RCX: ffffffff817ec6d7 RDX: 000000000000000d RSI: ffffffff8a725fd2 RDI: ffffffff8a1947e8 RBP: ffffffff8a1947e8 R08: ffffffff8a725fd2 R09: ffffffff8a726026 R10: 000000000001e6a7 R11: 0000000000066071 R12: ffffffff8a19481c R13: ffffffff8a1947e8 R14: ffffffff8a1947e8 R15: dffffc0000000000 FS: 00007f1166388700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefefd9b000 CR3: 00000000b0a68000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:118 [inline] unwind_next_frame+0x59a/0x17d0 arch/x86/kernel/unwind_orc.c:348 __save_stack_trace+0x90/0x160 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 kmem_cache_alloc_node_trace+0x153/0x400 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] pskb_expand_head+0x128/0xd30 net/core/skbuff.c:1472 netlink_trim+0x1ae/0x220 net/netlink/af_netlink.c:1278 netlink_unicast+0x94/0x610 net/netlink/af_netlink.c:1312 ip_set_protocol+0x386/0x500 net/netfilter/ipset/ip_set_core.c:1812 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 sock_no_sendpage+0xe2/0x110 net/core/sock.c:2610 kernel_sendpage net/socket.c:3407 [inline] sock_sendpage+0xdf/0x140 net/socket.c:871 pipe_to_sendpage+0x226/0x2d0 fs/splice.c:451 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x326/0x7a0 fs/splice.c:626 splice_from_pipe fs/splice.c:661 [inline] generic_splice_sendpage+0xc1/0x110 fs/splice.c:832 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1145 [inline] SYSC_splice fs/splice.c:1400 [inline] SyS_splice+0xd59/0x1380 fs/splice.c:1380 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f11663f7b29 RSP: 002b:00007f11663882e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00007f116647f438 RCX: 00007f11663f7b29 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000000001e R08: 000000000004ffe6 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f116647f430 R13: 00007f116647d140 R14: 00007f116647f43c R15: 00007f116644d074 Code: fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 <48> d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48