INFO: task syz-executor.1:9497 blocked for more than 143 seconds.
Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25872 pid:9497 tgid:9496 ppid:6440 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:840 [inline]
blkdev_fallocate+0x233/0x550 block/fops.c:797
vfs_fallocate+0x566/0x6c0 fs/open.c:330
ksys_fallocate fs/open.c:353 [inline]
__do_sys_fallocate fs/open.c:361 [inline]
__se_sys_fallocate fs/open.c:359 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:359
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0b4f07dea9
RSP: 002b:00007f0b4fe350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f0b4f1abf80 RCX: 00007f0b4f07dea9
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007f0b4f0ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000050000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0b4f1abf80 R15: 00007fff38a58218
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by kworker/u8:4/60:
#0: ffff8880b953e698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffff8880b9528948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
2 locks held by getty/4838:
#0: ffff88802ae750a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by syz-executor.5/6283:
1 lock held by syz-executor.0/8102:
1 lock held by syz-executor.1/9497:
#0: ffff88801d4a70c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:840 [inline]
#0: ffff88801d4a70c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x233/0x550 block/fops.c:797
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f2/0x390 kernel/kthread.c:388
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: 5165 Comm: kworker/0:4 Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:unwind_next_frame+0x1aba/0x2a00 arch/x86/kernel/unwind_orc.c:648
Code: 0f b6 04 28 84 c0 48 8b 2c 24 48 8b 74 24 10 0f 85 3e 0e 00 00 48 0f bf 03 48 01 c6 48 8d 55 40 48 89 ef e8 98 12 00 00 84 c0 <74> 28 e8 2f a7 54 00 e9 93 02 00 00 80 3d 25 1a 52 0e 01 0f 85 75
RSP: 0018:ffffc90004347540 EFLAGS: 00000202
RAX: 1ffff92000868e01 RBX: ffffffff902a161e RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc90004347710
RBP: ffffc90004347680 R08: ffffffff81416d6b R09: ffffffff814158df
R10: 0000000000000003 R11: ffff88802a9c8000 R12: ffffc90004347718
R13: dffffc0000000000 R14: ffffc900043476d0 R15: 1ffff92000868ed0
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd12d7b978 CR3: 000000000e134000 CR4: 0000000000350ef0
Call Trace:
__unwind_start+0x641/0x7c0 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2106 [inline]
slab_free mm/slub.c:4280 [inline]
kmem_cache_free+0x10b/0x2c0 mm/slub.c:4344
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x765/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f2/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244