rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7236/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=25201, q=275 ncpus=2)
task:syz-executor.2 state:R running task stack:23568 pid:7236 tgid:7235 ppid:5108 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x630/0x9f0 kernel/locking/lockdep.c:5778
Code: 3c 3b 00 74 08 4c 89 f7 e8 5d 10 86 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90013a6eee0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200274ddee RCX: ffffc90013a6ef03
RDX: 0000000000000001 RSI: ffffffff8bcacd00 RDI: ffffffff8c1f2480
RBP: ffffc90013a6f008 R08: ffffffff8fac246f R09: 1ffffffff1f5848d
R10: dffffc0000000000 R11: fffffbfff1f5848e R12: 1ffff9200274dde8
R13: 0000000000000246 R14: ffffc90013a6ef70 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:339 [inline]
rcu_read_unlock include/linux/rcupdate.h:812 [inline]
percpu_ref_get_many+0xfa/0x140 include/linux/percpu-refcount.h:209
percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
css_get include/linux/cgroup_refcnt.h:11 [inline]
mem_cgroup_commit_charge+0x9f/0x380 mm/memcontrol.c:3132
charge_memcg+0xb1/0x160 mm/memcontrol.c:7499
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:7510
mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
folio_prealloc+0x52/0x170 mm/memory.c:1056
alloc_anon_folio mm/memory.c:4403 [inline]
do_anonymous_page mm/memory.c:4461 [inline]
do_pte_missing mm/memory.c:3901 [inline]
handle_pte_fault+0x2f4a/0x7130 mm/memory.c:5380
__handle_mm_fault mm/memory.c:5523 [inline]
handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688
faultin_page mm/gup.c:1290 [inline]
__get_user_pages+0x6ef/0x1590 mm/gup.c:1589
__get_user_pages_locked mm/gup.c:1857 [inline]
faultin_page_range+0x204/0x850 mm/gup.c:2081
madvise_populate mm/madvise.c:943 [inline]
do_madvise+0x5e2/0x4590 mm/madvise.c:1461
__do_sys_madvise mm/madvise.c:1481 [inline]
__se_sys_madvise mm/madvise.c:1479 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479
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: 0033:0x7fe843c7cea9
RSP: 002b:00007fe84496c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fe843db3f80 RCX: 00007fe843c7cea9
RDX: 0000000000000017 RSI: 0000000000c00000 RDI: 0000000020000000
RBP: 00007fe843cebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe843db3f80 R15: 00007fffc3648a58
rcu: rcu_preempt kthread starved for 10549 jiffies! g25201 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:25656 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
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
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7241 Comm: syz-executor.4 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__kasan_check_read+0x0/0x20 mm/kasan/shadow.c:30
Code: 8d 4c 89 fe e8 b1 45 82 09 31 db eb d0 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 89 f6 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84
RSP: 0018:ffffc90013bcfd58 EFLAGS: 00000046
RAX: a418084e82751a00 RBX: 0000000000000000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88805bd88000
RBP: ffffc90013bcfe30 R08: 0000000000000003 R09: fffff52002779f88
R10: dffffc0000000000 R11: fffff52002779f88 R12: 1ffff1100b7b1124
R13: ffff88805bd88918 R14: 1ffff92002779fd0 R15: ffff88805bd88000
FS: 00007fb61c1e06c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001b4d000 CR3: 000000001f09a000 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]
test_ti_thread_flag include/linux/thread_info.h:118 [inline]
test_tsk_thread_flag include/linux/sched.h:1956 [inline]
task_sigpending include/linux/sched/signal.h:381 [inline]
__set_task_blocked kernel/signal.c:3063 [inline]
__set_current_blocked+0x12c/0x380 kernel/signal.c:3098
__do_sys_rt_sigreturn+0x170/0x270 arch/x86/kernel/signal_64.c:261
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: 0033:0x7fb61b440309
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007fb61c1dfbc0 EFLAGS: 00000202 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 00007fb61b5b4058 RCX: 00007fb61b440309
RDX: 00007fb61c1dfbc0 RSI: 00007fb61c1dfcf0 RDI: 0000000000000021
RBP: 00007fb61b5b4050 R08: 00007fb61c1e06c0 R09: 00007fb61c1e06c0
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fb61b5b405c
R13: 000000000000006e R14: 00007fff972acc30 R15: 00007fff972acd18