INFO: task syz-executor.5:6700 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25000 pid:6700 ppid:5021 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
btrfs_page_mkwrite+0x42f/0xc90 fs/btrfs/inode.c:8117
do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
wp_page_shared mm/memory.c:3280 [inline]
do_wp_page+0x501/0x3690 mm/memory.c:3362
handle_pte_fault mm/memory.c:4964 [inline]
__handle_mm_fault mm/memory.c:5089 [inline]
handle_mm_fault+0x2371/0x5860 mm/memory.c:5243
do_user_addr_fault arch/x86/mm/fault.c:1440 [inline]
handle_page_fault arch/x86/mm/fault.c:1534 [inline]
exc_page_fault+0x7d2/0x910 arch/x86/mm/fault.c:1590
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fd041e86cc5
RSP: 002b:00007ffc006239c8 EFLAGS: 00010202
RAX: 00000000200005c0 RBX: 0000000000000000 RCX: 0000000000737562
RDX: 0000000000000006 RSI: 0000000075622f2e RDI: 00000000200005c0
RBP: 00007ffc00623a88 R08: 00007fd041e00000 R09: 00007fd041a00000
R10: 00007fd041a05a40 R11: 0000000000000246 R12: 000000000004136f
R13: 00007ffc00623ab0 R14: 00007fd041fac120 R15: 0000000000000032
INFO: task syz-executor.5:6701 blocked for more than 144 seconds.
Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23720 pid:6701 ppid:5021 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
lock_page include/linux/pagemap.h:976 [inline]
set_page_dirty_lock+0xfd/0x2d0 mm/page-writeback.c:2821
bio_set_pages_dirty+0x1f7/0x2c0 block/bio.c:1481
iomap_dio_bio_iter+0xb7d/0x1430 fs/iomap/direct-io.c:342
__iomap_dio_rw+0x12c3/0x22e0 fs/iomap/direct-io.c:598
iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:688
btrfs_dio_read+0xb6/0x100 fs/btrfs/inode.c:7758
btrfs_direct_read fs/btrfs/file.c:3777 [inline]
btrfs_file_read_iter+0x39d/0x6b0 fs/btrfs/file.c:3816
do_iter_read+0x826/0xd90 fs/read_write.c:795
vfs_readv fs/read_write.c:915 [inline]
do_preadv+0x212/0x350 fs/read_write.c:1007
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd041e8c169
RSP: 002b:00007fd042bf6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000147
RAX: ffffffffffffffda RBX: 00007fd041fabf80 RCX: 00007fd041e8c169
RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fd041ee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0062394f R14: 00007fd042bf6300 R15: 0000000000022000
INFO: task syz-executor.5:6719 blocked for more than 145 seconds.
Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23848 pid:6719 ppid:5021 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
wait_on_state fs/btrfs/extent-io-tree.c:707 [inline]
wait_extent_bit+0x50c/0x670 fs/btrfs/extent-io-tree.c:751
lock_extent+0x1ce/0x280 fs/btrfs/extent-io-tree.c:1742
find_lock_delalloc_range+0x4c3/0x990 fs/btrfs/extent_io.c:479
writepage_delalloc+0x1f1/0x590 fs/btrfs/extent_io.c:1323
__extent_writepage+0x899/0x1740 fs/btrfs/extent_io.c:1609
extent_write_cache_pages fs/btrfs/extent_io.c:2477 [inline]
extent_writepages+0xca7/0x1990 fs/btrfs/extent_io.c:2599
do_writepages+0x3a6/0x670 mm/page-writeback.c:2551
filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390
__filemap_fdatawrite_range mm/filemap.c:423 [inline]
filemap_write_and_wait_range+0x1d4/0x2c0 mm/filemap.c:678
__iomap_dio_rw+0xb83/0x22e0 fs/iomap/direct-io.c:569
iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:688
btrfs_dio_read+0xb6/0x100 fs/btrfs/inode.c:7758
btrfs_direct_read fs/btrfs/file.c:3777 [inline]
btrfs_file_read_iter+0x39d/0x6b0 fs/btrfs/file.c:3816
do_iter_read+0x826/0xd90 fs/read_write.c:795
vfs_readv fs/read_write.c:915 [inline]
do_preadv+0x212/0x350 fs/read_write.c:1007
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd041e8c169
RSP: 002b:00007fd042bd5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000147
RAX: ffffffffffffffda RBX: 00007fd041fac050 RCX: 00007fd041e8c169
RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fd041ee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0062394f R14: 00007fd042bd5300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf277f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27bb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf27620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff888012acb138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90000b77d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffff8880318b80e0 (&type->s_umount_key#56){++++}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
1 lock held by udevd/4445:
2 locks held by getty/4743:
#0: ffff88814b0e9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.0/5020:
#0: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992
2 locks held by kworker/0:8/5116:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90004af7d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
3 locks held by syz-executor.5/6700:
#0: ffff888077c55268 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline]
#0: ffff888077c55268 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1381 [inline]
#0: ffff888077c55268 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1534 [inline]
#0: ffff888077c55268 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x1b9/0x910 arch/x86/mm/fault.c:1590
#1: ffff8880318b8558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
#2: ffff888074597440 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x427/0xc90 fs/btrfs/inode.c:8116
1 lock held by syz-executor.5/6701:
#0: ffff8880745975b8 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:785 [inline]
#0: ffff8880745975b8 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:170
1 lock held by syz-executor.5/6719:
#0: ffff8880745975b8 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:785 [inline]
#0: ffff8880745975b8 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:170
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5122 Comm: kworker/u4:7 Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:check_preemption_disabled+0x2e/0x110
Code: 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d 5c be 54 75 65 8b 05 51 be 54 75 a9 ff ff ff 7f 74 22 <65> 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8
RSP: 0018:ffffc90004b37a68 EFLAGS: 00000202
RAX: 0000000080000001 RBX: 0000000000000000 RCX: ffffffff816b49c0
RDX: 0000000000000000 RSI: ffffffff8b3849e0 RDI: ffffffff8b3849a0
RBP: ffffc90004b37be8 R08: dffffc0000000000 R09: fffffbfff1cab866
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000966f64
R13: ffffffff8a7f6b65 R14: ffff888025274c80 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd467b3088 CR3: 000000002236c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:695
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xbf/0x9d0 kernel/locking/lockdep.c:5702
rcu_read_unlock include/linux/rcupdate.h:806 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x23d/0x5c0 net/batman-adv/network-coding.c:719
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308