INFO: task syz-executor.3:13694 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25912 pid:13694 tgid:13690 ppid:11694 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: 0033:0x7f9e6627dea9
RSP: 002b:00007f9e670730c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f9e663ac050 RCX: 00007f9e6627dea9
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000009
RBP: 00007f9e662ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000074000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9e663ac050 R15: 00007ffccbd46838
Showing all locks held in the system:
2 locks held by kworker/u8:1/11:
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
1 lock held by khugepaged/36:
2 locks held by getty/4837:
#0: ffff88802afa10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.2/9510:
2 locks held by syz-executor.3/11549:
1 lock held by syz-executor.2/12227:
4 locks held by syz-executor.2/12391:
1 lock held by syz-executor.3/13694:
#0: ffff88801d54f0c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:840 [inline]
#0: ffff88801d54f0c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x233/0x550 block/fops.c:797
5 locks held by syz-executor.5/14297:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12391 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d 6c 10 3f 0c 48 89 de 5b e9 c3 f1 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 c0 d3 03 00 65 8b 15 50 d2 6d 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc90004fed3e0 EFLAGS: 00000286
RAX: ffffffff814145ec RBX: 0000000000000000 RCX: ffffffff9036673c
RDX: 0000000000000000 RSI: ffffffff81ed848b RDI: ffffffff81ed8208
RBP: 1ffff920009fda98 R08: ffffffff81414480 R09: ffffc90004fed5b0
R10: 0000000000000003 R11: ffffffff8181e0a0 R12: ffffffff8fc0dfa4
R13: dffffc0000000000 R14: 1ffff920009fda98 R15: ffffffff9036673c
FS: 000055556a77d480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd4b37c038 CR3: 0000000097b52000 CR4: 0000000000350ef0
Call Trace:
unwind_next_frame+0x67c/0x2a00 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x75/0x3f0 mm/page_owner.c:302
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1141 [inline]
free_unref_page_prepare+0x986/0xab0 mm/page_alloc.c:2347
free_unref_folios+0x185/0xb30 mm/page_alloc.c:2536
shrink_folio_list+0x33d2/0x8ed0 mm/vmscan.c:1428
evict_folios+0xb2e/0x2710 mm/vmscan.c:4537
try_to_shrink_lruvec+0xb6b/0xe90 mm/vmscan.c:4733
lru_gen_shrink_lruvec mm/vmscan.c:4876 [inline]
shrink_lruvec+0x586/0x3090 mm/vmscan.c:5653
shrink_node_memcgs mm/vmscan.c:5873 [inline]
shrink_node+0xa12/0x4310 mm/vmscan.c:5908
shrink_zones mm/vmscan.c:6152 [inline]
do_try_to_free_pages+0x780/0x1d60 mm/vmscan.c:6214
try_to_free_mem_cgroup_pages+0x465/0xac0 mm/vmscan.c:6529
try_charge_memcg+0x6da/0x18a0 mm/memcontrol.c:2783
obj_cgroup_charge_pages mm/memcontrol.c:3302 [inline]
__memcg_kmem_charge_page+0xe2/0x250 mm/memcontrol.c:3328
__alloc_pages+0x28c/0x6c0 mm/page_alloc.c:4592
alloc_pages_mpol+0x3e8/0x680 mm/mempolicy.c:2264
pagetable_alloc include/linux/mm.h:2862 [inline]
__pte_alloc_one include/asm-generic/pgalloc.h:68 [inline]
pte_alloc_one+0x88/0x5d0 arch/x86/mm/pgtable.c:33
__pte_alloc+0x79/0x3a0 mm/memory.c:440
copy_pte_range mm/memory.c:1092 [inline]
copy_pmd_range mm/memory.c:1238 [inline]
copy_pud_range mm/memory.c:1275 [inline]
copy_p4d_range mm/memory.c:1299 [inline]
copy_page_range+0x4ecd/0x58e0 mm/memory.c:1397
dup_mmap kernel/fork.c:751 [inline]
dup_mm kernel/fork.c:1688 [inline]
copy_mm+0x1321/0x2180 kernel/fork.c:1737
copy_process+0x187a/0x3df0 kernel/fork.c:2390
kernel_clone+0x226/0x8f0 kernel/fork.c:2797
__do_sys_clone kernel/fork.c:2940 [inline]
__se_sys_clone kernel/fork.c:2924 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
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: 0033:0x7fca4887aed3
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffe04b43bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fca4887aed3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055556a77d750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001