rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5553/1:b..l P5755/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=12837, q=626 ncpus=2)
task:rm state:R running task stack:23680 pid:5755 tgid:5755 ppid:5726 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5239 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6603
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6925
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:check_kcov_mode kernel/kcov.c:175 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp8+0x2f/0x90 kernel/kcov.c:284
Code: 8b 04 24 65 48 8b 0c 25 40 d7 03 00 65 8b 05 b0 09 70 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 57 83 b9 1c 16 00 00 00 74 4e <8b> 81 f8 15 00 00 83 f8 03 75 43 48 8b 91 00 16 00 00 44 8b 89 fc
RSP: 0018:ffffc90002e67478 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffff8880630a1e00
RDX: 0000000000000000 RSI: 000055b452dd4fff RDI: 0000000000000000
RBP: ffffc90002e67670 R08: ffffffff8b8a370a R09: ffffffff8b8a3552
R10: 0000000000000004 R11: ffff8880630a1e00 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000000000f R15: 000055b452dd4fff
mas_validate_limits lib/maple_tree.c:7477 [inline]
mt_validate+0xf0a/0x4aa0 lib/maple_tree.c:7590
validate_mm+0xe7/0x530 mm/mmap.c:329
do_vmi_align_munmap+0x15dd/0x18c0 mm/mmap.c:2759
do_vmi_munmap+0x261/0x2f0 mm/mmap.c:2830
mmap_region+0x72f/0x2090 mm/mmap.c:2881
do_mmap+0x8f9/0x1010 mm/mmap.c:1468
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
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: 0033:0x7f76d9da1b74
RSP: 002b:00007ffc8b8043f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffc8b8044a8 RCX: 00007f76d9da1b74
RDX: 0000000000000003 RSI: 0000000000001888 RDI: 00007f76d9b07000
RBP: 00007ffc8b8047d0 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000032 R11: 0000000000000246 R12: 00007f76d9d7dac0
R13: 00007ffc8b804858 R14: 00007f76d9b08888 R15: 00007f76d9b07000
task:syz-executor state:R running task stack:21728 pid:5553 tgid:5553 ppid:5551 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5239 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6603
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6782
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6806
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
unwind_next_frame+0x2124/0x2a00 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_page+0xd22/0xea0 mm/page_alloc.c:2608
discard_slab mm/slub.c:2583 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3051
put_cpu_partial+0x17c/0x250 mm/slub.c:3126
__slab_free+0x2ea/0x3d0 mm/slub.c:4343
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3988 [inline]
slab_alloc_node mm/slub.c:4037 [inline]
__do_kmalloc_node mm/slub.c:4157 [inline]
__kmalloc_node_noprof+0x1d2/0x440 mm/slub.c:4164
kmalloc_node_noprof include/linux/slab.h:708 [inline]
qdisc_alloc+0x97/0xa80 net/sched/sch_generic.c:946
qdisc_create_dflt+0x62/0x4b0 net/sched/sch_generic.c:1008
attach_one_default_qdisc net/sched/sch_generic.c:1174 [inline]
netdev_for_each_tx_queue include/linux/netdevice.h:2513 [inline]
attach_default_qdiscs net/sched/sch_generic.c:1192 [inline]
dev_activate+0x3c0/0x1240 net/sched/sch_generic.c:1251
__dev_open+0x352/0x450 net/core/dev.c:1483
__dev_change_flags+0x1e2/0x6f0 net/core/dev.c:8837
dev_change_flags+0x8b/0x1a0 net/core/dev.c:8909
do_setlink+0xcd0/0x41f0 net/core/rtnetlink.c:2987
__rtnl_newlink net/core/rtnetlink.c:3783 [inline]
rtnl_newlink+0x17a9/0x2070 net/core/rtnetlink.c:3830
rtnetlink_rcv_msg+0x744/0xd00 net/core/rtnetlink.c:6734
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2204
__do_sys_sendto net/socket.c:2216 [inline]
__se_sys_sendto net/socket.c:2212 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2212
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: 0033:0x7efca6d77cac
RSP: 002b:00007ffc8defb3a0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007efca7a34620 RCX: 00007efca6d77cac
RDX: 000000000000002c RSI: 00007efca7a34670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc8defb3f4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007efca7a34670 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10553 jiffies! g12837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:25816 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5239 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6603
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6925
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
Code: 77 b8 0c 41 f6 c6 02 75 26 48 83 3d c2 71 b8 0c 00 75 0a 48 83 3d 38 72 b8 0c 00 74 12 48 85 db 74 0d 48 89 df e8 d1 f9 22 0a <48> 89 c3 eb ad 48 c7 c7 18 cc 33 8e 48 8d b4 24 c0 00 00 00 e8 b8
RSP: 0018:ffffc90000167ca0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff8880176d8000
RDX: 0000000000000000 RSI: ffffffffffffdc5c RDI: 0000000000000000
RBP: ffffc90000167df0 R08: ffffffff8b9e5149 R09: 1ffffffff1f5f375
R10: dffffc0000000000 R11: fffffbfff1f5f376 R12: dffffc0000000000
R13: ffff888016effea0 R14: 0000000000000000 R15: ffffc90000167d68
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:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-next-20240724-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:112
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 65 61 95 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:ffffffff8e007ca8 EFLAGS: 00000246
RAX: ffffffff8e094680 RBX: ffff88801ced8064 RCX: 0000000000056561
RDX: 0000000000000001 RSI: ffff88801ced8000 RDI: ffff88801ced8064
RBP: 000000000003a6b8 R08: ffff8880b9437c7b R09: 1ffff11017286f8f
R10: dffffc0000000000 R11: ffffffff8b94b870 R12: ffff88801ab53000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eadb260
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000061dbc000 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:702
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
rest_init+0x2dc/0x300 init/main.c:747
start_kernel+0x47a/0x500 init/main.c:1103
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x147