INFO: task syz.3.238:5998 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.238 state:D stack:23760 pid:5998 tgid:5997 ppid:5226 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
io_schedule+0x8d/0x110 kernel/sched/core.c:7401
folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1307
folio_lock include/linux/pagemap.h:1050 [inline]
z_erofs_fill_bio_vec fs/erofs/zdata.c:1470 [inline]
z_erofs_submit_queue fs/erofs/zdata.c:1650 [inline]
z_erofs_runqueue+0xa8c/0x2010 fs/erofs/zdata.c:1732
z_erofs_readahead+0xbae/0xf00 fs/erofs/zdata.c:1863
read_pages+0x180/0x840 mm/readahead.c:160
page_cache_ra_unbounded+0x6ce/0x7f0 mm/readahead.c:273
do_page_cache_ra mm/readahead.c:303 [inline]
force_page_cache_ra+0x280/0x2f0 mm/readahead.c:332
force_page_cache_readahead mm/internal.h:338 [inline]
generic_fadvise+0x528/0x840 mm/fadvise.c:106
vfs_fadvise mm/fadvise.c:185 [inline]
ksys_fadvise64_64 mm/fadvise.c:199 [inline]
__do_sys_fadvise64 mm/fadvise.c:214 [inline]
__se_sys_fadvise64 mm/fadvise.c:212 [inline]
__x64_sys_fadvise64+0x145/0x190 mm/fadvise.c:212
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: 0033:0x7f6c1d37def9
RSP: 002b:00007f6c1e1c6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd
RAX: ffffffffffffffda RBX: 00007f6c1d535f80 RCX: 00007f6c1d37def9
RDX: 0000000000004101 RSI: 0000000000e0ffff RDI: 0000000000000004
RBP: 00007f6c1d3f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6c1d535f80 R15: 00007ffd721fef58
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
3 locks held by kworker/u8:6/2958:
2 locks held by getty/4981:
#0: ffff8880306bb0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000312b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5228:
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline]
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958
1 lock held by syz.3.238/5998:
#0: ffff88805b6f4330 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline]
#0: ffff88805b6f4330 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225
7 locks held by syz.2.1899/10222:
#0: ffff8880b883e9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:560
#1: ffff8880b8828948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:989
#2: ffff8880b8928948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_change+0xfd/0x280 kernel/sched/psi.c:913
#3: ffff88805b66b3e8 (&dentry->d_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
#3: ffff88805b66b3e8 (&dentry->d_lock){+.+.}-{2:2}, at: fast_dput+0x208/0x420 fs/dcache.c:773
#4: ffff88805f4743a8 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2175 [inline]
#4: ffff88805f4743a8 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_lock_all fs/f2fs/f2fs.h:2225 [inline]
#4: ffff88805f4743a8 (&sbi->cp_rwsem){++++}-{3:3}, at: block_operations fs/f2fs/checkpoint.c:1237 [inline]
#4: ffff88805f4743a8 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_write_checkpoint+0x4bb/0x1c90 fs/f2fs/checkpoint.c:1665
#5: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2175 [inline]
#5: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: block_operations fs/f2fs/checkpoint.c:1285 [inline]
#5: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_checkpoint+0xd0d/0x1c90 fs/f2fs/checkpoint.c:1665
#6: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2175 [inline]
#6: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: block_operations fs/f2fs/checkpoint.c:1285 [inline]
#6: ffff88805f474440 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_checkpoint+0xd0d/0x1c90 fs/f2fs/checkpoint.c:1665
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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+0xff4/0x1040 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2958 Comm: kworker/u8:6 Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:825 [inline]
RIP: 0010:batadv_iv_ogm_schedule+0x728/0x10a0 net/batman-adv/bat_iv_ogm.c:868
Code: ff c6 48 8b 84 24 98 00 00 00 42 0f b6 04 30 84 c0 48 8b 54 24 20 75 17 8b 02 48 39 c6 73 33 48 89 f3 e8 1b b6 14 f6 48 89 d8 b7 fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 7c dd 48 8b 7c 24 20
RSP: 0018:ffffc90009cef9c0 EFLAGS: 00000293
RAX: 0000000000000134 RBX: 0000000000000134 RCX: ffff8880315cda00
RDX: 0000000000000000 RSI: 0000000000000134 RDI: ffffffff8c608f40
RBP: ffffc90009cefaf8 R08: ffffffff9018766f R09: 1ffffffff2030ecd
R10: dffffc0000000000 R11: fffffbfff2030ece R12: ffff88807bf33000
R13: ffff88805dd7a280 R14: dffffc0000000000 R15: ffff88805de48998
FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b302f3ff8 CR3: 0000000029b96000 CR4: 0000000000350ef0
Call Trace:
batadv_iv_send_outstanding_bat_ogm_packet+0x6fe/0x810 net/batman-adv/bat_iv_ogm.c:1712
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x870/0xd30 kernel/workqueue.c:3393
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