rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-....: (1 GPs behind) idle=a97/1/0x4000000000000000 softirq=7008/7009 fqs=5196 (detected by 0, t=10502 jiffies, g=7281, q=828) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4286 Comm: syz.2.7 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__lock_acquire+0x1551/0x1ff0 kernel/locking/lockdep.c:5039 Code: b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 d7 09 00 00 83 3d 85 d2 a7 0c 00 74 62 31 f6 89 f0 48 81 c4 88 00 00 00 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 e8 50 c2 ad 02 85 c0 74 e1 48 c7 c0 RSP: 0018:ffffc90000dd05d0 EFLAGS: 00000082 RAX: 0000000000000001 RBX: ffffc90000dd0680 RCX: 1ffff920001ba070 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff888027583b80 RBP: 317fc64f4fe2bad8 R08: dffffc0000000000 R09: fffffbfff2131821 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000007 R13: ffff888027584668 R14: ffff888027583b80 R15: ffff8880275847a8 FS: 00007f1962ecf6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0c0a5d4d58 CR3: 0000000060755000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:312 rcu_read_lock include/linux/rcupdate.h:739 [inline] BPF_PROG_RUN_ARRAY include/linux/bpf.h:1333 [inline] trace_call_bpf+0x146/0x660 kernel/trace/bpf_trace.c:127 perf_trace_run_bpf_submit+0x7b/0x1d0 kernel/events/core.c:9991 perf_trace_preemptirq_template+0x31d/0x430 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0x10e/0x190 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713 RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 4d 82 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0018:ffffc90000dd0b00 EFLAGS: 00000206 RAX: d3f4774b18db1200 RBX: 1ffff920001ba168 RCX: ffffffff81633dd8 RDX: dffffc0000000000 RSI: ffffffff8aab2b80 RDI: ffffffff8af9f2c0 RBP: ffffc90000dd0bd8 R08: dffffc0000000000 R09: fffffbfff2131822 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8cb23d00 R13: ffff888027583fd8 R14: ffffc90000dd0b40 R15: 1ffff920001ba164 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] ieee80211_rx_napi+0x1f2/0x380 net/mac80211/rx.c:5006 ieee80211_rx include/net/mac80211.h:4571 [inline] ieee80211_handle_queued_frames+0x103/0x1b0 net/mac80211/main.c:237 tasklet_action_common+0x3cb/0x4a0 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6777 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 f9 d4 0f f7 e8 b4 4d 3f f7 fb bf 01 00 00 00 a9 b3 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 19 b8 82 f7 48 RSP: 0018:ffffc9000329f480 EFLAGS: 00000282 RAX: d3f4774b18db1200 RBX: 1ffff92000653e98 RCX: ffffffff81633dd8 RDX: dffffc0000000000 RSI: ffffffff8aab2b80 RDI: 0000000000000001 RBP: ffffc9000329f530 R08: dffffc0000000000 R09: fffffbfff2131822 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000653e90 R13: 1ffff92000653e94 R14: ffffc9000329f4a0 R15: dffffc0000000000 irqentry_exit+0x53/0x80 kernel/entry/common.c:432 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:205 Code: 00 00 00 0f 1f 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 18 04 8a 0c 48 89 de 5b e9 47 11 49 00 cc cc cc cc cc cc cc 48 8b 04 24 <65> 48 8b 0d 24 ea 81 7e 65 8b 15 25 ea 81 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc9000329f5f8 EFLAGS: 00000293 RAX: ffffffff8139ad45 RBX: ffff8880f4ae28c0 RCX: dffffc0000000000 RDX: ffff888027583b80 RSI: 000000000000002e RDI: 0000000000000040 RBP: ffff888023fee000 R08: ffffffff8139ad36 R09: 0000000080240010 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0000000000 R13: ffff888074ae28c0 R14: 0000000074ae28c0 R15: 000000000000002e phys_addr_valid arch/x86/mm/physaddr.h:7 [inline] __phys_addr+0x95/0x170 arch/x86/mm/physaddr.c:28 virt_to_head_page include/linux/mm.h:900 [inline] ___cache_free+0x36/0x100 mm/slub.c:3506 qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] __kmalloc_node+0x151/0x390 mm/slub.c:4451 kmalloc_node include/linux/slab.h:614 [inline] kvmalloc_node+0x80/0x140 mm/util.c:619 kvmalloc include/linux/mm.h:805 [inline] memcg_update_list_lru_node mm/list_lru.c:392 [inline] memcg_update_list_lru mm/list_lru.c:473 [inline] memcg_update_all_list_lrus+0x276/0xbf0 mm/list_lru.c:510 memcg_alloc_cache_id mm/memcontrol.c:2961 [inline] memcg_online_kmem mm/memcontrol.c:3653 [inline] mem_cgroup_css_alloc+0xb35/0x1540 mm/memcontrol.c:5307 css_create kernel/cgroup/cgroup.c:5369 [inline] cgroup_apply_control_enable+0x398/0xae0 kernel/cgroup/cgroup.c:3189 cgroup_mkdir+0xe72/0x10f0 kernel/cgroup/cgroup.c:5589 kernfs_iop_mkdir+0x275/0x400 fs/kernfs/dir.c:1175 vfs_mkdir+0x3b6/0x590 fs/namei.c:4065 do_mkdirat+0x260/0x520 fs/namei.c:4090 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f1965087169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1962ecf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f19652a0080 RCX: 00007f1965087169 RDX: 00000000000001ff RSI: 0000400000000000 RDI: ffffffffffffff9c RBP: 00007f19651082a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f19652a0080 R15: 00007ffdb97656e8