INFO: task syz-executor.0:9121 blocked for more than 143 seconds.
Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26960 pid: 9121 ppid: 3622 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write_nested+0x16c/0x180 kernel/locking/rwsem.c:1663
lock_rename+0x182/0x1a0
do_renameat2+0x4a0/0x1370 fs/namei.c:4848
__do_sys_rename fs/namei.c:4953 [inline]
__se_sys_rename fs/namei.c:4951 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:4951
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ec0a8a669
RSP: 002b:00007f4ec1bd1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f4ec0bac050 RCX: 00007f4ec0a8a669
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 00000000200002c0
RBP: 00007f4ec0ae5560 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc20d0d7af R14: 00007f4ec1bd1300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb233f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cb23bf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cb23220 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:2/41:
2 locks held by kworker/1:2/142:
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000299fd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by getty/3287:
#0: ffff88814aeb7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:0/6816:
2 locks held by syz-executor.0/9104:
2 locks held by syz-executor.0/9121:
#0: ffff88807b5d0460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff8880472746e0 (&type->i_mutex_dir_key#13/1){+.+.}-{3:3}, at: lock_rename+0x182/0x1a0
2 locks held by syz-executor.4/12188:
#0: ffffffff8dc1e968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dc1e968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ca/0xf00 net/core/rtnetlink.c:6087
#1: ffffffff8cb28838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#1: ffffffff8cb28838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x291/0x720 kernel/rcu/tree_exp.h:940
1 lock held by cmp/12235:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9104 Comm: syz-executor.0 Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:filter_irq_stacks+0x51/0xa0 kernel/stacktrace.c:395
Code: fb eb 12 66 0f 1f 44 00 00 49 ff c7 48 83 c3 08 4d 39 fc 74 4f 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 25 b4 64 00 4b 8b 04 fe 48 39 e8 72 0c 48 c7 c1
RSP: 0000:ffffc9000b3272c8 EFLAGS: 00000246
RAX: 1ffff92001664e7d RBX: ffffc9000b3273e8 RCX: dffffc0000000000
RDX: 0000000000140cca RSI: 000000000000000f RDI: ffffc9000b3273a0
RBP: ffffffff8a400190 R08: dffffc0000000000 R09: fffffbfff1c164a6
R10: fffffbfff1c164a6 R11: 1ffffffff1c164a5 R12: 000000000000000f
R13: ffffffff8a600000 R14: ffffc9000b3273a0 R15: 0000000000000009
FS: 00007f4ec1bf2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558b19041950 CR3: 000000002110f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__stack_depot_save+0x33/0x490 lib/stackdepot.c:422
save_stack+0xf3/0x1e0 mm/page_owner.c:128
__set_page_owner+0x2d/0x50 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2532 [inline]
get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283
__alloc_pages+0x259/0x560 mm/page_alloc.c:5515
folio_alloc+0x1a/0x50 mm/mempolicy.c:2280
filemap_alloc_folio+0x7e/0x1c0 mm/filemap.c:970
do_read_cache_folio+0x28a/0x790 mm/filemap.c:3483
do_read_cache_page mm/filemap.c:3561 [inline]
read_cache_page+0x57/0x250 mm/filemap.c:3570
read_mapping_page include/linux/pagemap.h:756 [inline]
dir_get_page fs/minix/dir.c:70 [inline]
minix_find_entry+0x1b4/0x590 fs/minix/dir.c:170
minix_inode_by_name+0x7b/0x220 fs/minix/dir.c:454
minix_lookup+0xbf/0x150 fs/minix/namei.c:30
lookup_open fs/namei.c:3391 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x10e6/0x2df0 fs/namei.c:3688
do_filp_open+0x264/0x4f0 fs/namei.c:3718
do_sys_openat2+0x124/0x4e0 fs/open.c:1313
do_sys_open fs/open.c:1329 [inline]
__do_sys_creat fs/open.c:1405 [inline]
__se_sys_creat fs/open.c:1399 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1399
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ec0a8a669
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f4ec1bf2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f4ec0babf80 RCX: 00007f4ec0a8a669
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300
RBP: 00007f4ec0ae5560 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc20d0d7af R14: 00007f4ec1bf2300 R15: 0000000000022000