INFO: task syz-executor.1:4594 blocked for more than 143 seconds.
Not tainted 6.6.0-rc1-syzkaller-00033-g3669558bdf35 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25328 pid:4594 ppid:5079 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
io_schedule+0x8c/0x100 kernel/sched/core.c:9026
folio_wait_bit_common+0x871/0x12a0 mm/filemap.c:1301
btrfs_page_mkwrite+0x4a4/0xd10 fs/btrfs/inode.c:8120
do_page_mkwrite+0x197/0x470 mm/memory.c:2931
wp_page_shared mm/memory.c:3291 [inline]
do_wp_page+0xf3d/0x4010 mm/memory.c:3376
handle_pte_fault mm/memory.c:4994 [inline]
__handle_mm_fault mm/memory.c:5119 [inline]
handle_mm_fault+0x1b36/0x6200 mm/memory.c:5284
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2ac/0x860 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fc1ad85db98
RSP: 002b:00007ffe12ba2418 EFLAGS: 00010246
RAX: 0000000020001340 RBX: 00007ffe12ba2528 RCX: 0032656c69662f2e
RDX: 0000000000000008 RSI: 0032656c69662f2e RDI: 0000000020001340
RBP: 0000000000000032 R08: 00007fc1ad800000 R09: 00000000000004b5
R10: 0000000081349358 R11: 000000000007525c R12: 00007fc1ad408180
R13: fffffffffffffffe R14: 00007fc1ad400000 R15: 00007fc1ad408188
INFO: task syz-executor.1:4627 blocked for more than 144 seconds.
Not tainted 6.6.0-rc1-syzkaller-00033-g3669558bdf35 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25392 pid:4627 ppid:5079 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
wait_on_state fs/btrfs/extent-io-tree.c:719 [inline]
wait_extent_bit+0x50c/0x670 fs/btrfs/extent-io-tree.c:763
lock_extent+0x1c0/0x270 fs/btrfs/extent-io-tree.c:1755
btrfs_page_mkwrite+0x5bd/0xd10 fs/btrfs/inode.c:8130
do_page_mkwrite+0x197/0x470 mm/memory.c:2931
wp_page_shared mm/memory.c:3291 [inline]
do_wp_page+0xf3d/0x4010 mm/memory.c:3376
handle_pte_fault mm/memory.c:4994 [inline]
__handle_mm_fault mm/memory.c:5119 [inline]
handle_mm_fault+0x1b36/0x6200 mm/memory.c:5284
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2ac/0x860 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x33/0x70 arch/x86/lib/copy_user_64.S:58
Code: 40 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:ffffc9000a18f550 EFLAGS: 00050206
RAX: 0000000000000000 RBX: 0000000020001218 RCX: 0000000000000038
RDX: 0000000000000000 RSI: ffffc9000a18f600 RDI: 00000000200011e0
RBP: ffffc9000a18f6b0 R08: ffffc9000a18f637 R09: 1ffff92001431ec6
R10: dffffc0000000000 R11: fffff52001431ec7 R12: 0000000000000038
R13: ffffc9000a18f600 R14: 00000000200011e0 R15: ffffc9000a18f600
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:145
emit_last_fiemap_cache fs/btrfs/extent_io.c:2513 [inline]
extent_fiemap+0x1b9c/0x1fe0 fs/btrfs/extent_io.c:3040
btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7802
ioctl_fiemap fs/ioctl.c:220 [inline]
do_vfs_ioctl+0x19ea/0x2b40 fs/ioctl.c:811
__do_sys_ioctl fs/ioctl.c:869 [inline]
__se_sys_ioctl+0x81/0x170 fs/ioctl.c:857
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: 0033:0x7fc1ad87cae9
RSP: 002b:00007fc1ae4ef0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc1ad99c120 RCX: 00007fc1ad87cae9
RDX: 00000000200011c0 RSI: 00000000c020660b RDI: 0000000000000006
RBP: 00007fc1ad8c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fc1ad99c120 R15: 00007ffe12ba2338
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc1-syzkaller-00033-g3669558bdf35 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xdf5/0xe40 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12234 Comm: kworker/u4:3 Not tainted 6.6.0-rc1-syzkaller-00033-g3669558bdf35 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:101 [inline]
RIP: 0010:do_raw_spin_unlock+0x85/0x8b0 kernel/locking/spinlock_debug.c:140
Code: 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 23 04 00 00 41 83 3f 00 0f 84 99 01 00 00 4d 8d 6f 10 4d 89 ec 49 c1 ec 03 41 80 3c 1c 00 <74> 08 4c 89 ef e8 e1 71 79 00 65 48 8b 2d 99 9c 95 7e 49 39 6d 00
RSP: 0018:ffffc90005587ae8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff816e1be8
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888033949900
RBP: ffff88803423bb20 R08: ffff888033949903 R09: 1ffff11006729320
R10: dffffc0000000000 R11: ffffed1006729321 R12: 1ffff11006729322
R13: ffff888033949910 R14: ffffffff8a99afb9 R15: ffff888033949900
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555565e1788 CR3: 000000000d130000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:166 [inline]
_raw_spin_unlock_bh+0x23/0x40 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:396 [inline]
batadv_nc_purge_paths+0x309/0x3a0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x2d3/0x5c0 net/batman-adv/network-coding.c:720
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304