INFO: task syz-executor.1:10489 blocked for more than 143 seconds.
Not tainted 6.4.0-rc1-syzkaller-00133-g9a48d6046722 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24984 pid:10489 ppid:5024 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:8120
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: 0033:0x7faded486bcf
RSP: 002b:00007ffc06400b28 EFLAGS: 00010287
RAX: 0000000020001180 RBX: 0000000000000000 RCX: 00007faded000000
RDX: 0000000000000016 RSI: 00007faded0072c0 RDI: 0000000020001180
RBP: 00007ffc06400be8 R08: 00007faded400000 R09: 00007faded000000
R10: 00007faded0072a8 R11: 0000000000080f1a R12: 00000000002beab1
R13: 00007ffc06400c10 R14: 00007ffc06400c30 R15: 0000000000000032
INFO: task syz-executor.1:10494 blocked for more than 144 seconds.
Not tainted 6.4.0-rc1-syzkaller-00133-g9a48d6046722 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21912 pid:10494 ppid:5024 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
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:775 [inline]
btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:178
btrfs_sync_file+0x442/0x10e0 fs/btrfs/file.c:1817
generic_write_sync include/linux/fs.h:2469 [inline]
iomap_dio_complete+0x5fc/0x990 fs/iomap/direct-io.c:128
btrfs_direct_write fs/btrfs/file.c:1542 [inline]
btrfs_do_write_iter+0x8b5/0x1270 fs/btrfs/file.c:1674
do_iter_write+0x7b1/0xcb0 fs/read_write.c:860
iter_file_splice_write+0x843/0xfe0 fs/splice.c:795
do_splice_from fs/splice.c:873 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1039
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:994
do_splice_direct+0x283/0x3d0 fs/splice.c:1082
do_sendfile+0x620/0xff0 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308
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: 0033:0x7faded48c169
RSP: 002b:00007fadee243168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007faded5abf80 RCX: 00007faded48c169
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000007
RBP: 00007faded4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc06400aaf R14: 00007fadee243300 R15: 0000000000022000
INFO: task syz-executor.1:10553 blocked for more than 145 seconds.
Not tainted 6.4.0-rc1-syzkaller-00133-g9a48d6046722 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24576 pid:10553 ppid:5024 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
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
btrfs_page_mkwrite+0x556/0xc90 fs/btrfs/inode.c:8130
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: 0010:rep_movs_alternative+0x33/0xb0 arch/x86/lib/copy_user_64.S:56
Code: 46 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb
RSP: 0018:ffffc90016437550 EFLAGS: 00050206
RAX: 0000000000000000 RBX: 0000000020001318 RCX: 0000000000000038
RDX: 0000000000000000 RSI: ffffc90016437600 RDI: 00000000200012e0
RBP: ffffc900164376b0 R08: dffffc0000000000 R09: fffff52002c86ec7
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: ffffc90016437600 R14: 00000000200012e0 R15: ffffc90016437600
copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:133 [inline]
_copy_to_user+0x86/0xa0 lib/usercopy.c:41
copy_to_user include/linux/uaccess.h:191 [inline]
fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:144
emit_last_fiemap_cache fs/btrfs/extent_io.c:2880 [inline]
extent_fiemap+0x1a54/0x1fc0 fs/btrfs/extent_io.c:3407
btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7802
ioctl_fiemap fs/ioctl.c:219 [inline]
do_vfs_ioctl+0x19ba/0x2b10 fs/ioctl.c:810
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:856
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: 0033:0x7faded48c169
RSP: 002b:00007fadee222168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007faded5ac050 RCX: 00007faded48c169
RDX: 00000000200012c0 RSI: 00000000c020660b RDI: 000000000000000c
RBP: 00007faded4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc06400aaf R14: 00007fadee222300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf27670 (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: ffffffff8cf27a30 (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: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by udevd/4447:
#0: ffff8880b983c1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffff8880b98287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:996
#2: ffffffff8cf406c8 (tk_core.seq.seqcount){----}-{0:0}, at: ktime_get_coarse_real_ts64+0x3a/0x120 kernel/time/timekeeping.c:2261
2 locks held by getty/4746:
#0: ffff88802d219098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.5/5031:
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.2/5032:
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
2 locks held by kworker/0:31/7060:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc900146a7d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
3 locks held by syz-executor.1/10489:
#0: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline]
#0: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1381 [inline]
#0: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1534 [inline]
#0: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x1b9/0x910 arch/x86/mm/fault.c:1590
#1: ffff8880611f8558 (sb_pagefaults#2){.+.+}-{0:0}, at: do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
#2: ffff888034fbd838 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x427/0xc90 fs/btrfs/inode.c:8119
2 locks held by syz-executor.1/10494:
#0: ffff8880611f8460 (sb_writers#18){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff888034fbd9b0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#1: ffff888034fbd9b0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:178
4 locks held by syz-executor.1/10553:
#0: ffff888034fbd9b0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:785 [inline]
#0: ffff888034fbd9b0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:170
#1: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline]
#1: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1381 [inline]
#1: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1534 [inline]
#1: ffff88807ad35b68 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x1b9/0x910 arch/x86/mm/fault.c:1590
#2: ffff8880611f8558 (sb_pagefaults#2){.+.+}-{0:0}, at: do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
#3: ffff888034fbd838 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x427/0xc90 fs/btrfs/inode.c:8119
1 lock held by syz-executor.1/13158:
6 locks held by syz-executor.4/13164:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc1-syzkaller-00133-g9a48d6046722 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
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: 13165 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller-00133-g9a48d6046722 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:inode_to_bdi+0xcb/0xe0 mm/backing-dev.c:1121
Code: 08 4c 89 f7 e8 66 d7 1b 00 bb f8 04 00 00 49 03 1e 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 48 d7 1b 00 48 8b 03 <5b> 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3
RSP: 0018:ffffc900148d77a0 EFLAGS: 00000246
RAX: ffffffff91b71820 RBX: ffff888014272168 RCX: 0000000000040000
RDX: ffffc90003b71000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 1ffff1100ec0fb6a R08: ffffffff81c69794 R09: fffff940001d2fe9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea0000e97f40 R14: ffff88807607d928 R15: dffffc0000000000
FS: 00007f3ce1109700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a21b15de9 CR3: 0000000076e6c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mapping_can_writeback include/linux/backing-dev.h:150 [inline]
__folio_cancel_dirty+0x4e/0x560 mm/page-writeback.c:2845
folio_cancel_dirty include/linux/pagemap.h:1067 [inline]
truncate_cleanup_folio+0x285/0x5f0 mm/truncate.c:186
truncate_inode_folio+0x55/0x70 mm/truncate.c:195
shmem_undo_range+0x43d/0x1ba0 mm/shmem.c:950
shmem_truncate_range mm/shmem.c:1049 [inline]
shmem_evict_inode+0x258/0x9f0 mm/shmem.c:1164
evict+0x2a4/0x620 fs/inode.c:665
__dentry_kill+0x436/0x650 fs/dcache.c:607
dentry_kill+0xbb/0x290
dput+0x1f3/0x420 fs/dcache.c:913
__fput+0x5e4/0x890 fs/file_table.c:329
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3ce048bf57
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 c4 57 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3ce1108f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 000000000001f1a2 RCX: 00007f3ce048bf57
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000005
RBP: 00007f3ce11096b8 R08: 00007f3ce1109020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff
R13: 0000000000000016 R14: 00007f3ce1108fe0 R15: 0000000020000440