rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8598/1:b..l P8592/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=43913, q=31 ncpus=2)
task:syz.0.961 state:R running task stack:23984 pid:8592 tgid:8590 ppid:5096 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5248 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6600
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6922
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:__rcu_read_unlock+0xd/0x110 kernel/rcu/tree_plugin.h:430
Code: aa 4c 89 ff e8 a4 d1 7f 00 eb a0 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 <53> 49 bc 00 00 00 00 00 fc ff df 65 4c 8b 34 25 40 d7 03 00 4d 8d
RSP: 0018:ffffc90002f27510 EFLAGS: 00000246
RAX: 6d718145f700e000 RBX: 0000000000000001 RCX: ffffc90002f27403
RDX: 0000000000000001 RSI: ffffffff8bcada80 RDI: ffffffff8c207f20
RBP: ffffc90002f27830 R08: ffffffff8faf7a6f R09: 1ffffffff1f5ef4d
R10: dffffc0000000000 R11: fffffbfff1f5ef4e R12: ffffc90002f279e0
R13: 1ffff920005e4f3f R14: 0000000000000000 R15: ffffc90002f277c0
rcu_read_unlock include/linux/rcupdate.h:878 [inline]
pte_unmap include/linux/pgtable.h:115 [inline]
handle_pte_fault+0x33f/0x6eb0 mm/memory.c:5517
__handle_mm_fault mm/memory.c:5666 [inline]
handle_mm_fault+0x1021/0x1990 mm/memory.c:5831
faultin_page mm/gup.c:1194 [inline]
__get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
populate_vma_page_range+0x264/0x330 mm/gup.c:1932
__mm_populate+0x27a/0x460 mm/gup.c:2035
mm_populate include/linux/mm.h:3430 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
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: 0033:0x7fbeef575bd9
RSP: 002b:00007fbef0371048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fbeef703f60 RCX: 00007fbeef575bd9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fbeef5e4aa1 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbeef703f60 R15: 00007fff9c43ad78
task:syz.1.963 state:R running task stack:24144 pid:8598 tgid:8597 ppid:5106 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5248 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6600
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6922
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_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 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 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900040df080 EFLAGS: 00000206
RAX: 73e17534dbc13200 RBX: 0000000000000001 RCX: 0000000080000000
RDX: dffffc0000000000 RSI: ffffffff8bcada80 RDI: ffffffff8c207f20
RBP: 0000000000000001 R08: ffffffff93010787 R09: 1ffffffff26020f0
R10: dffffc0000000000 R11: fffffbfff26020f1 R12: 0000000000000246
R13: ffff888023b19e00 R14: 00000000ffffffff R15: ffffffff8e335860
task_css include/linux/cgroup.h:433 [inline]
mem_cgroup_from_task+0x9a/0x120 mm/memcontrol.c:890
get_mem_cgroup_from_mm+0xd7/0x2a0 mm/memcontrol.c:943
__mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:4621
mem_cgroup_charge include/linux/memcontrol.h:671 [inline]
shmem_alloc_and_add_folio+0x857/0x14e0 mm/shmem.c:1803
shmem_get_folio_gfp+0xa22/0x2660 mm/shmem.c:2199
shmem_fault+0x252/0x6f0 mm/shmem.c:2399
__do_fault+0x135/0x460 mm/memory.c:4656
do_read_fault mm/memory.c:5062 [inline]
do_fault mm/memory.c:5192 [inline]
do_pte_missing mm/memory.c:3948 [inline]
handle_pte_fault+0x3b18/0x6eb0 mm/memory.c:5523
__handle_mm_fault mm/memory.c:5666 [inline]
handle_mm_fault+0x1021/0x1990 mm/memory.c:5831
faultin_page mm/gup.c:1194 [inline]
__get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
populate_vma_page_range+0x264/0x330 mm/gup.c:1932
__mm_populate+0x27a/0x460 mm/gup.c:2035
mm_populate include/linux/mm.h:3430 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
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: 0033:0x7f35ec575bd9
RSP: 002b:00007f35ed28b048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f35ec703f60 RCX: 00007f35ec575bd9
RDX: b635773f06ebbeef RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f35ec5e4aa1 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f35ec703f60 R15: 00007fff1e38a6e8
rcu: rcu_preempt kthread starved for 10342 jiffies! g43913 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:26576 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5248 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6600
__schedule_loop kernel/sched/core.c:6677 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6692
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
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:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc6-next-20240703-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 40 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 85 c7 98 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff8880176f0000 RBX: ffff8880196ee864 RCX: 0000000000cb54c1
RDX: 0000000000000001 RSI: ffff8880196ee800 RDI: ffff8880196ee864
RBP: 000000000003a6b8 R08: ffff8880b9537c9b R09: 1ffff110172a6f93
R10: dffffc0000000000 R11: ffffffff8b915050 R12: ffff88801a77c000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8ead8980
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32816ff8 CR3: 000000006569c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x375/0x5d0 kernel/sched/idle.c:326
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
common_startup_64+0x13e/0x147