rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=07b4/1/0x4000000000000000 softirq=70953/70954 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23707/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=102705, q=158 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5624 Comm: kworker/u4:19 Not tainted 6.5.0-rc7-syzkaller-00087-gb5cc3833f13a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:187
Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a2 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d c3 40 84 ed 75 5f f7 c5 00 ff 00 00 75 5c f7
RSP: 0018:ffffc90000007838 EFLAGS: 00000056
RAX: 0000000000000001 RBX: 000000000000006b RCX: ffffffff816b26e5
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff907b4308
RBP: 0000000000000000 R08: ffffffff907b430f R09: 1ffffffff20f6861
R10: dffffc0000000000 R11: fffffbfff20f6862 R12: ffff88802bf28ac0
R13: ffff88802bf28ac0 R14: dffffc0000000001 R15: fffffbfff20f6862
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff06787e000 CR3: 0000000048025000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
lookup_chain_cache_add kernel/locking/lockdep.c:3788 [inline]
validate_chain kernel/locking/lockdep.c:3844 [inline]
__lock_acquire+0x1345/0x7f70 kernel/locking/lockdep.c:5144
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x66c/0xd10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
__sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1115
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1109
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:127 [inline]
RIP: 0010:__local_bh_enable_ip+0xe5/0x1f0 kernel/softirq.c:363
Code: 84 f7 00 00 00 4d 89 f5 49 c1 ed 03 43 80 7c 25 00 00 74 08 4c 89 f7 e8 f9 2f 90 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 <43> 80 7c 25 00 00 74 08 4c 89 f7 e8 3b 2f 90 00 8b 44 24 40 fa a9
RSP: 0018:ffffc900072c7a60 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff92000e58f50 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff8a8d3f39
RBP: ffffc900072c7b10 R08: ffff88802d159c83 R09: 1ffff11005a2b390
R10: dffffc0000000000 R11: ffffed1005a2b391 R12: dffffc0000000000
R13: 1ffff92000e58f54 R14: ffffc900072c7aa0 R15: 0000000000000201
spin_unlock_bh include/linux/spinlock.h:396 [inline]
batadv_nc_purge_paths+0x309/0x3a0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x2d3/0x5c0 net/batman-adv/network-coding.c:720
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
task:syz-executor.3 state:R running task stack:26728 pid:23707 ppid:5048 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7022
irqentry_exit+0x57/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_is_held_type+0x13b/0x190
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900031bf680 EFLAGS: 00000206
RAX: 524ada22322d9f00 RBX: 0000000000000003 RCX: ffff888077bcbb80
RDX: ffff888077bcbb80 RSI: ffffffff8b0aa9e0 RDI: ffffffff8b58ade0
RBP: 0000000000000000 R08: ffffffff8ab8c935 R09: 1ffffffff20f6860
R10: dffffc0000000000 R11: fffffbfff20f6861 R12: 0000000000000246
R13: ffff888077bcbb80 R14: 00000000ffffffff R15: ffff888078094250
lock_is_held include/linux/lockdep.h:288 [inline]
xa_entry include/linux/xarray.h:1198 [inline]
xas_descend+0xea/0x440 lib/xarray.c:206
xas_load+0xbe/0x140 lib/xarray.c:244
filemap_get_entry+0x1bd/0x460 mm/filemap.c:1826
shmem_get_folio_gfp+0x34b/0x3470 mm/shmem.c:1882
shmem_get_folio mm/shmem.c:2079 [inline]
shmem_write_begin+0x172/0x4e0 mm/shmem.c:2573
generic_perform_write+0x31b/0x630 mm/filemap.c:3923
generic_file_write_iter+0xaf/0x310 mm/filemap.c:4044
call_write_iter include/linux/fs.h:1877 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x782/0xaf0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff07107b82f
RSP: 002b:00007ff071db7e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000080000 RCX: 00007ff07107b82f
RDX: 0000000000080000 RSI: 00007ff0677ff000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000538
R10: 00000000000003d0 R11: 0000000000000293 R12: 0000000000000003
R13: 00007ff071db7f3c R14: 00007ff071db7f40 R15: 00007ff0677ff000
rcu: rcu_preempt kthread starved for 10502 jiffies! g102705 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:26568 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 23704 Comm: syz-executor.4 Not tainted 6.5.0-rc7-syzkaller-00087-gb5cc3833f13a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__sanitizer_cov_trace_pc+0x49/0x60 kernel/kcov.c:213
Code: f7 c2 00 01 00 00 74 35 83 b9 04 16 00 00 00 74 2c 8b 91 e0 15 00 00 83 fa 02 75 21 48 8b 91 e8 15 00 00 48 8b 32 48 8d 7e 01 <8b> 89 e4 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 c3 0f 1f
RSP: 0018:ffffc9000320f798 EFLAGS: 00000246
RAX: ffffffff8180a437 RBX: 1ffff1101730897d RCX: ffff888021f28000
RDX: ffffc9000c8c9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000320f990 R08: ffffffff8180a402 R09: 1ffffffff1d30f1d
R10: dffffc0000000000 R11: fffffbfff1d30f1e R12: ffff8880b9844be8
R13: ffff8880b993d0c8 R14: ffff8880b993d0c0 R15: 0000000000000000
FS: 00007fcbc65426c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feb27197378 CR3: 0000000077ada000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
csd_lock_wait kernel/smp.c:296 [inline]
smp_call_function_many_cond+0x1877/0x27d0 kernel/smp.c:835
clock_was_set+0x779/0x830 kernel/time/hrtimer.c:976
timekeeping_inject_offset+0x663/0x710 kernel/time/timekeeping.c:1395
do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2444
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline]
__x64_sys_clock_adjtime+0x1e0/0x290 kernel/time/posix-timers.c:1162
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcbc587cae9
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:00007fcbc65420c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007fcbc599c050 RCX: 00007fcbc587cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fcbc58c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fcbc599c050 R15: 00007ffd47114378