INFO: task kworker/u8:5:1100 blocked for more than 143 seconds.
Not tainted 6.10.0-rc6-syzkaller-00210-gd270dd21bee0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:5 state:D stack:19480 pid:1100 tgid:1100 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline]
ntfs_resident_writepage+0xf4/0x220 fs/ntfs3/inode.c:874
write_cache_pages+0xd2/0x230 mm/page-writeback.c:2613
do_writepages+0x35b/0x870 mm/page-writeback.c:2656
__writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1651
writeback_sb_inodes+0x99c/0x1380 fs/fs-writeback.c:1947
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2018
wb_writeback+0x495/0xd40 fs/fs-writeback.c:2129
wb_check_background_flush fs/fs-writeback.c:2199 [inline]
wb_do_writeback fs/fs-writeback.c:2287 [inline]
wb_workfn+0xc58/0x1090 fs/fs-writeback.c:2314
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.0.3985:19013 blocked for more than 143 seconds.
Not tainted 6.10.0-rc6-syzkaller-00210-gd270dd21bee0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.3985 state:D stack:24672 pid:19013 tgid:19013 ppid:11998 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
io_schedule+0x8d/0x110 kernel/sched/core.c:9043
folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1307
filemap_page_mkwrite+0x281/0x640 mm/filemap.c:3676
do_page_mkwrite+0x19d/0x480 mm/memory.c:3093
wp_page_shared mm/memory.c:3495 [inline]
do_wp_page+0x23d4/0x52f0 mm/memory.c:3645
handle_pte_fault+0x117e/0x7090 mm/memory.c:5397
__handle_mm_fault mm/memory.c:5524 [inline]
handle_mm_fault+0x10df/0x1ba0 mm/memory.c:5689
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f7b1033cf88
RSP: 002b:00007ffe88e1ea68 EFLAGS: 00010202
RAX: 0000000020000200 RBX: 0000000000000004 RCX: 0064656461657268
RDX: 0000000000000009 RSI: 6465646165726874 RDI: 0000000020000200
RBP: fffffffffffffffe R08: 00007f7b10200000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007f7b10503f6c
R13: 0000000000000032 R14: 00007f7b10505a60 R15: 00007ffe88e1eb50
INFO: task syz.0.3985:19015 blocked for more than 144 seconds.
Not tainted 6.10.0-rc6-syzkaller-00210-gd270dd21bee0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.3985 state:D stack:24224 pid:19015 tgid:19013 ppid:11998 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
io_schedule+0x8d/0x110 kernel/sched/core.c:9043
folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1307
__filemap_get_folio+0xb7/0xc10 mm/filemap.c:1898
pagecache_get_page+0x2c/0x200 mm/folio-compat.c:87
find_or_create_page include/linux/pagemap.h:769 [inline]
grab_cache_page include/linux/pagemap.h:885 [inline]
attr_make_nonresident+0x999/0xe80 fs/ntfs3/attrib.c:290
attr_set_size_res fs/ntfs3/attrib.c:371 [inline]
attr_set_size+0x711/0x4290 fs/ntfs3/attrib.c:432
ntfs_set_size+0x161/0x200 fs/ntfs3/inode.c:851
ntfs_extend+0x16d/0x4a0 fs/ntfs3/file.c:335
ntfs_file_write_iter+0x3ea/0x770 fs/ntfs3/file.c:1124
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa74/0xc90 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7b10375bd9
RSP: 002b:00007f7b1121f048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7b10503f60 RCX: 00007f7b10375bd9
RDX: 0000000000000078 RSI: 0000000020000340 RDI: 0000000000000005
RBP: 00007f7b103e4aa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7b10503f60 R15: 00007ffe88e1e988
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
4 locks held by kworker/u8:5/1100:
#0: ffff888017afa948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888017afa948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004b1fd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004b1fd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffff888011a620e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x22/0xf0 fs/super.c:562
#3: ffff8880627cefa0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline]
#3: ffff8880627cefa0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_resident_writepage+0xf4/0x220 fs/ntfs3/inode.c:874
3 locks held by kworker/u8:10/2487:
#0: ffff88802a0f5948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff88802a0f5948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90009ba7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90009ba7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193
5 locks held by kworker/u8:12/2915:
#0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc9000a5a7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc9000a5a7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5da5d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffff8880662f1408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249
#4: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#4: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
2 locks held by getty/4854:
#0: ffff88802af0b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
4 locks held by kworker/0:8/5167:
2 locks held by syz.0.3985/19013:
#0: ffff88806dc83070 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:683 [inline]
#0: ffff88806dc83070 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x6e0 mm/memory.c:5845
#1: ffff888011a62518 (sb_pagefaults#5){.+.+}-{0:0}, at: do_page_mkwrite+0x19d/0x480 mm/memory.c:3093
5 locks held by syz.0.3985/19015:
#0: ffff88807eaa1248 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191
#1: ffff888011a62420 (sb_writers#18){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline]
#1: ffff888011a62420 (sb_writers#18){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586
#2: ffff8880627cf240 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: inode_trylock include/linux/fs.h:811 [inline]
#2: ffff8880627cf240 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: ntfs_file_write_iter+0x25a/0x770 fs/ntfs3/file.c:1102
#3: ffff8880627cefa0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline]
#3: ffff8880627cefa0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_set_size+0x12e/0x200 fs/ntfs3/inode.c:848
#4: ffff8880627cf050 (&ni->file.run_lock#3){++++}-{3:3}, at: ntfs_set_size+0x13d/0x200 fs/ntfs3/inode.c:849
2 locks held by kworker/u8:6/20535:
1 lock held by syz-executor/20733:
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
2 locks held by syz-executor/20736:
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
#1: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#1: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor/20778:
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5e6e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00210-gd270dd21bee0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5408 Comm: kworker/u8:13 Not tainted 6.10.0-rc6-syzkaller-00210-gd270dd21bee0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_acquire+0x9e/0x550 kernel/locking/lockdep.c:5722
Code: ec 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4b 89 04 2c 43 c7 44 2c 09 f2 f2 f2 00 43 c7 44 2c 11 f3 f3 f3 f3 66 43 c7 44 2c 15 f3 f3 <43> c6 44 2c 17 f3 0f 1f 44 00 00 65 8b 05 bc 6c 91 7e 83 f8 08 0f
RSP: 0018:ffffc90002fb79e0 EFLAGS: 00000216
RAX: f2f2f200f1f1f1f1 RBX: ffff88806f9b6540 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e333f20
RBP: ffffc90002fb7b40 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f5a92e R12: 1ffff920005f6f44
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d01aff8 CR3: 000000000e132000 CR4: 0000000000350ef0
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244