INFO: task syz-executor101:5259 blocked for more than 143 seconds.
Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor101 state:D stack:27952 pid:5259 tgid:5243 ppid:5238 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:815 [inline]
open_last_lookups fs/namei.c:3691 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
RSP: 002b:00007f120b20e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6b8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f120b30a6b0 R08: 00007ffe2d83d237 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
INFO: task syz-executor101:5257 blocked for more than 144 seconds.
Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor101 state:D stack:27952 pid:5257 tgid:5244 ppid:5240 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:815 [inline]
open_last_lookups fs/namei.c:3691 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
RSP: 002b:00007f120b20e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6b8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f120b30a6b0 R08: 00007ffe2d83d237 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
INFO: task syz-executor101:5256 blocked for more than 145 seconds.
Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor101 state:D stack:27952 pid:5256 tgid:5245 ppid:5239 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:815 [inline]
open_last_lookups fs/namei.c:3691 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
RSP: 002b:00007f120b20e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6b8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f120b30a6b0 R08: 00007ffe2d83d237 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
INFO: task syz-executor101:5260 blocked for more than 146 seconds.
Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor101 state:D stack:27536 pid:5260 tgid:5247 ppid:5242 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:815 [inline]
open_last_lookups fs/namei.c:3691 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
RSP: 002b:00007f120b20e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6b8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f120b30a6b0 R08: 00007ffe2d83d237 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
INFO: task syz-executor101:5258 blocked for more than 147 seconds.
Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor101 state:D stack:27320 pid:5258 tgid:5248 ppid:5241 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:815 [inline]
open_last_lookups fs/namei.c:3691 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
RSP: 002b:00007f120b20e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6b8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f120b30a6b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
1 lock held by kswapd0/86:
2 locks held by getty/4976:
#0: ffff88802e3450a0 (&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+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor101/5252:
1 lock held by syz-executor101/5259:
#0: ffff88807203cc00 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807203cc00 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
#0: ffff88807203cc00 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
1 lock held by syz-executor101/5250:
1 lock held by syz-executor101/5257:
#0: ffff88807203d140 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807203d140 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
#0: ffff88807203d140 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
2 locks held by syz-executor101/5251:
1 lock held by syz-executor101/5256:
#0: ffff88807203c180 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807203c180 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
#0: ffff88807203c180 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
2 locks held by syz-executor101/5254:
1 lock held by syz-executor101/5260:
#0: ffff88807203d680 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807203d680 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
#0: ffff88807203d680 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
1 lock held by syz-executor101/5253:
1 lock held by syz-executor101/5258:
#0: ffff88807203c6c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807203c6c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
#0: ffff88807203c6c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/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 UID: 0 PID: 5252 Comm: syz-executor101 Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:zero_user_segments+0x288/0x320
Code: 40 75 0c e8 ba 1f 74 ff b8 01 00 00 00 eb 1b e8 ae 1f 74 ff 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 75 13 41 8b 07 <89> ed 48 39 e8 76 20 e8 8c 1f 74 ff ff c5 eb 8b 44 89 f9 80 e1 07
RSP: 0018:ffffc900037ef4f0 EFLAGS: 00000293
RAX: 0000000000000001 RBX: ffffea000850fac0 RCX: ffff888011c20000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8220c73b R09: 1ffffd40010a1f58
R10: dffffc0000000000 R11: fffff940010a1f59 R12: 1ffffd40010a1f64
R13: 1ffffd40010a1f58 R14: 0000000000000000 R15: ffffea000850fb20
FS: 00007f120b22f6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562e3e0e5600 CR3: 0000000076338000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
folio_zero_range include/linux/highmem.h:647 [inline]
block_read_full_folio+0x53a/0xcd0 fs/buffer.c:2406
filemap_read_folio+0x14b/0x630 mm/filemap.c:2367
do_read_cache_folio+0x3f5/0x850 mm/filemap.c:3825
read_mapping_folio include/linux/pagemap.h:1011 [inline]
dir_get_folio fs/sysv/dir.c:64 [inline]
sysv_find_entry+0x16a/0x4b0 fs/sysv/dir.c:154
sysv_inode_by_name+0x98/0x2a0 fs/sysv/dir.c:370
sysv_lookup+0x6b/0xe0 fs/sysv/namei.c:38
lookup_open fs/namei.c:3573 [inline]
open_last_lookups fs/namei.c:3694 [inline]
path_openat+0x11a7/0x3590 fs/namei.c:3930
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f120b278b89
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f120b22f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f120b30a6a8 RCX: 00007f120b278b89
RDX: 000000000000275a RSI: 00000000200001c0 RDI: 00000000ffffff9c
RBP: 00007f120b30a6a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f120b2cd0c0
R13: 0030656c69662f2e R14: 00656d69742e7166 R15: 66622e6f696b6c62
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.313 msecs