INFO: task syz.6.359:8743 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.359 state:D stack:27392 pid:8743 tgid:8729 ppid:7410 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
d_wait_lookup fs/dcache.c:2477 [inline]
d_alloc_parallel+0xc16/0x1600 fs/dcache.c:2559
__lookup_slow+0x117/0x3f0 fs/namei.c:1776
lookup_slow+0x53/0x70 fs/namei.c:1808
walk_component+0x2e1/0x410 fs/namei.c:2112
lookup_last fs/namei.c:2610 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2634
filename_lookup+0x2a3/0x670 fs/namei.c:2663
user_path_at+0x3a/0x60 fs/namei.c:3070
__do_sys_chdir fs/open.c:553 [inline]
__se_sys_chdir+0xbc/0x220 fs/open.c:547
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: 0033:0x7f632177e819
RSP: 002b:00007f631f5f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 00007f6321936080 RCX: 00007f632177e819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f63217f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6321936080 R15: 00007fff43753738
INFO: task syz.6.359:8745 blocked for more than 145 seconds.
Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.359 state:D stack:24000 pid:8745 tgid:8729 ppid:7410 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
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:818 [inline]
open_last_lookups fs/namei.c:3745 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1398
do_sys_open fs/open.c:1413 [inline]
__do_sys_openat fs/open.c:1429 [inline]
__se_sys_openat fs/open.c:1424 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1424
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: 0033:0x7f632177e819
RSP: 002b:00007f631f5d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6321936160 RCX: 00007f632177e819
RDX: 000000000000275a RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f63217f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6321936160 R15: 00007fff43753738
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
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: 11028 Comm: sed Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:__enqueue_entity+0x11b/0x600 kernel/sched/fair.c:855
Code: 74 08 48 89 ef e8 c5 4e 93 00 48 01 5d 00 48 b8 00 00 00 00 00 fc ff df 41 80 3c 04 00 49 89 c4 74 08 4c 89 ff e8 a5 4e 93 00 <49> 8b 5d 70 49 8d 7d 30 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05
RSP: 0000:ffffc900000074a8 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000400 RCX: dffffc0000000000
RDX: ffff88801cef00c0 RSI: ffff88807c49da80 RDI: ffff8880b863eb20
RBP: ffff8880b863eb28 R08: ffffffff8144ad33 R09: 1ffffffff203969e
R10: dffffc0000000000 R11: fffffbfff203969f R12: dffffc0000000000
R13: ffff88807c49da80 R14: ffff8880b863eb10 R15: ffff88807c49daf0
FS: 00007fd8f4898380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8f4a92be0 CR3: 000000002795a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
enqueue_entity+0x7f6/0x1920 kernel/sched/fair.c:5429
enqueue_task_fair+0x24d/0xea0 kernel/sched/fair.c:6997
enqueue_task+0x72/0x330 kernel/sched/core.c:2061
activate_task+0x61/0xc0 kernel/sched/core.c:2108
attach_task+0xee/0x190 kernel/sched/fair.c:9635
attach_tasks kernel/sched/fair.c:9670 [inline]
sched_balance_rq+0x664a/0x8620 kernel/sched/fair.c:11747
sched_balance_domains+0x565/0xa90 kernel/sched/fair.c:12155
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:debug_smp_processor_id+0x4/0x20 lib/smp_processor_id.c:60
Code: 89 de e8 1f 2f 2c f9 e9 66 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> c7 c7 00 57 60 8c 48 c7 c6 40 57 60 8c eb 1c 66 2e 0f 1f 84 00
RSP: 0000:ffffc900041573f8 EFLAGS: 00000287
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8170a980
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901cb4f0
RBP: ffffc90004157558 R08: ffffffff901cb4f7 R09: 1ffffffff203969e
R10: dffffc0000000000 R11: fffffbfff203969f R12: 1ffff9200082ae90
R13: ffffffff8208e5a6 R14: ffffffff8208e5a6 R15: dffffc0000000000
rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:737
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xbf/0xa30 kernel/locking/lockdep.c:5860
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock_sched include/linux/rcupdate.h:962 [inline]
pfn_valid+0x3eb/0x450 include/linux/mmzone.h:2053
page_table_check_set+0x22/0x540 mm/page_table_check.c:110
__page_table_check_ptes_set+0x30f/0x410 mm/page_table_check.c:225
page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
set_ptes include/linux/pgtable.h:267 [inline]
set_pte_range+0x724/0x750 mm/memory.c:5042
filemap_map_order0_folio mm/filemap.c:3625 [inline]
filemap_map_pages+0x11c6/0x20d0 mm/filemap.c:3679
do_fault_around mm/memory.c:5255 [inline]
do_read_fault mm/memory.c:5288 [inline]
do_fault mm/memory.c:5431 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x2b98/0x6820 mm/memory.c:5766
__handle_mm_fault mm/memory.c:5909 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6077
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fd8f49e52d9
Code: ff c4 eb 2d 3c 2b 75 05 49 ff c4 eb 07 83 7c 24 78 00 74 05 0f 57 c0 eb 18 48 8d 3d 67 7a 0a 00 e8 0e 8b f7 ff 48 85 c0 75 ea <0f> 28 05 00 d9 0a 00 41 c7 46 18 01 00 00 00 66 41 0f 7e 46 28 eb
RSP: 002b:00007ffef5847270 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00007ffef5847320
RDX: 00007ffef5847320 RSI: 00007ffef5847cd8 RDI: 00007fd8f4a8cd36
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000006e R11: 00007ffef58474f4 R12: 00007ffef5847410
R13: 00007ffef5847cd8 R14: 00007fd8f4acf120 R15: 0000000000000000