rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=79cc/1/0x4000000000000000 softirq=43156/43157 fqs=475
rcu: (detected by 1, t=10505 jiffies, g=71685, q=625 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11144 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-00036-g9d1ddab261f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:4628 [inline]
RIP: 0010:__lock_acquire+0xd44/0x1fd0 kernel/locking/lockdep.c:5121
Code: 24 8b 18 48 85 db 74 59 83 fb 31 0f 83 e1 10 00 00 48 8d 04 9b 48 8b 4c 24 08 48 8d 5c c1 f8 48 89 d8 48 c1 e8 03 0f b6 04 38 <84> c0 0f 85 22 0d 00 00 8b 1b 48 8b 44 24 20 0f b6 04 38 84 c0 0f
RSP: 0018:ffffc90000007a30 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff88802901c770 RCX: ffff88802901c6d8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000
RBP: ffff88802901c778 R08: ffffffff92f00507 R09: 1ffffffff25e00a0
R10: dffffc0000000000 R11: fffffbfff25e00a1 R12: 579dda4ddd03af2b
R13: ffff88802901bc00 R14: 0000000000000000 R15: ffff88802901c798
FS: 00007f4c7ad7d6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3232c000 CR3: 000000005f6e4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000003
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
advance_sched+0xa1e/0xca0 net/sched/sch_taprio.c:985
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:percpu_counter_add_batch+0x29b/0x2f0 lib/percpu_counter.c:103
Code: 4d 85 e4 75 16 e8 d5 f5 b7 fc eb 15 e8 ce f5 b7 fc e8 79 23 99 06 4d 85 e4 74 ea e8 bf f5 b7 fc fb 48 c7 44 24 40 0e 36 e0 45 <48> 8b 44 24 38 49 c7 04 07 00 00 00 00 66 41 c7 44 07 09 00 00 41
RSP: 0018:ffffc900036fec00 EFLAGS: 00000283
RAX: ffffffff84de0ab1 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000fe73000 RSI: 0000000000001272 RDI: 0000000000001273
RBP: ffffc900036fecf8 R08: ffffffff84de0a87 R09: 1ffffffff25e00b3
R10: dffffc0000000000 R11: fffffbfff25e00b4 R12: 0000000000000200
R13: 1ffff11005d2c115 R14: 0000000000000046 R15: dffffc0000000000
percpu_counter_add include/linux/percpu_counter.h:71 [inline]
percpu_counter_inc include/linux/percpu_counter.h:267 [inline]
ext4_es_init_extent fs/ext4/extents_status.c:502 [inline]
__es_insert_extent+0x10c5/0x1770 fs/ext4/extents_status.c:832
ext4_es_cache_extent+0x4e5/0x760 fs/ext4/extents_status.c:969
ext4_cache_extents fs/ext4/extents.c:541 [inline]
ext4_find_extent+0x5b1/0xde0 fs/ext4/extents.c:925
ext4_ext_map_blocks+0x2ec/0x77b0 fs/ext4/extents.c:4143
ext4_map_blocks+0x434/0x1d20 fs/ext4/inode.c:551
ext4_getblk+0x1fa/0x850 fs/ext4/inode.c:833
ext4_bread_batch+0x63/0x4e0 fs/ext4/inode.c:910
__ext4_find_entry+0xfd5/0x1b30 fs/ext4/namei.c:1670
ext4_lookup_entry fs/ext4/namei.c:1770 [inline]
ext4_lookup+0x15f/0x750 fs/ext4/namei.c:1838
lookup_open fs/namei.c:3475 [inline]
open_last_lookups fs/namei.c:3566 [inline]
path_openat+0x1033/0x3240 fs/namei.c:3796
do_filp_open+0x235/0x490 fs/namei.c:3826
do_sys_openat2+0x13e/0x1d0 fs/open.c:1406
do_sys_open fs/open.c:1421 [inline]
__do_sys_openat fs/open.c:1437 [inline]
__se_sys_openat fs/open.c:1432 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1432
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: 0033:0x7f4c7a07dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007f4c7ad7d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4c7a1abf80 RCX: 00007f4c7a07dea9
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f4c7a0ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f4c7a1abf80 R15: 00007ffe8911d358
rcu: rcu_preempt kthread starved for 8130 jiffies! g71685 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26256 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5085 Comm: kworker/1:3 Not tainted 6.9.0-rc5-syzkaller-00036-g9d1ddab261f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1899/0x2a00 kernel/smp.c:855
Code: 89 e6 83 e6 01 31 ff e8 15 db 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 c0 d6 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 a4 d6 0b 00 eb e4 44
RSP: 0018:ffffc90002ddf8e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff11017288c45 RCX: ffff888066cd1e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002ddfae0 R08: ffffffff818a299b R09: 1ffffffff25e00a0
R10: dffffc0000000000 R11: fffffbfff25e00a1 R12: dffffc0000000000
R13: ffff8880b9446228 R14: ffff8880b953f780 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0006d9fc0 CR3: 0000000022d30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000003
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
__purge_vmap_area_lazy+0x458/0xaf0 mm/vmalloc.c:2245
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2299
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244