sched: RT throttling activated
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5679 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 0 PID: 5679 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Modules linked in:
CPU: 0 PID: 5679 Comm: syz.2.330 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Code: ff ff ff e8 00 41 e4 f7 0f 0b 48 8b 7c 24 20 e8 44 ae 7f fe e9 dd e9 ff ff e8 ea 40 e4 f7 0f 0b e9 f1 ee ff ff e8 de 40 e4 f7 <0f> 0b e9 61 f2 ff ff e8 d2 40 e4 f7 48 c7 c7 f0 7a fa 8d 4c 89 f6
RSP: 0018:ffffc900000078a0 EFLAGS: 00010246
RAX: ffffffff899c8f42 RBX: 0000000000000000 RCX: ffff888078055940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007aa8 R08: ffff888078055940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff92000000f2c
R13: dffffc0000000000 R14: ffff888023d36258 R15: ffff8880241abc00
FS: 00007fa1fd4286c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa165994198 CR3: 0000000076d7d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x5b/0x4d0 net/mac80211/tx.c:5352
ieee80211_beacon_get include/net/mac80211.h:5264 [inline]
mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1752 [inline]
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:unwind_next_frame+0x25/0x20b0 arch/x86/kernel/unwind_orc.c:424
Code: 00 00 00 00 90 55 41 57 41 56 41 55 41 54 53 48 81 ec a0 00 00 00 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 8d 6f 48 48 89 e8 <48> c1 e8 03 48 89 44 24 28 42 80 3c 30 00 74 08 48 89 ef e8 c3 87
RSP: 0018:ffffc900057e6db0 EFLAGS: 00000282
RAX: ffffc900057e6ed0 RBX: ffffc900057e6e88 RCX: 0000000080000000
RDX: dffffc0000000000 RSI: ffffffff81c5cccf RDI: ffffc900057e6e88
RBP: ffffc900057e6ed0 R08: ffffc900057e6f50 R09: 0000000000000002
R10: fffff52000afcddd R11: 1ffff92000afcddb R12: ffff888078055940
R13: 1ffff92000afcdfc R14: dffffc0000000000 R15: ffffc900057e6e88
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
save_stack+0xf3/0x1e0 mm/page_owner.c:127
__set_page_owner+0x19/0x60 mm/page_owner.c:190
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
prep_new_page mm/page_alloc.c:2539 [inline]
get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
__alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5614
__folio_alloc+0xe/0x30 mm/page_alloc.c:5646
vma_alloc_folio+0x4a3/0x900 mm/mempolicy.c:2243
shmem_alloc_folio mm/shmem.c:1589 [inline]
shmem_alloc_and_acct_folio+0x42e/0xb60 mm/shmem.c:1613
shmem_get_folio_gfp+0x1361/0x3400 mm/shmem.c:1941
shmem_fault+0x1be/0x7b0 mm/shmem.c:2156
__do_fault+0x13b/0x4e0 mm/memory.c:4280
do_read_fault mm/memory.c:4631 [inline]
do_fault mm/memory.c:4760 [inline]
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5173 [inline]
handle_mm_fault+0x28ca/0x3e70 mm/memory.c:5294
faultin_page mm/gup.c:1026 [inline]
__get_user_pages+0x3ff/0xeb0 mm/gup.c:1250
populate_vma_page_range+0x214/0x2b0 mm/gup.c:1607
__mm_populate+0x248/0x370 mm/gup.c:1721
mm_populate include/linux/mm.h:2837 [inline]
vm_mmap_pgoff+0x203/0x2b0 mm/util.c:525
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa1fc58ebe9
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:00007fa1fd428038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fa1fc7c5fa0 RCX: 00007fa1fc58ebe9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fa1fc611e19 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa1fc7c6038 R14: 00007fa1fc7c5fa0 R15: 00007ffc921a3ef8
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 90 nop
5: 55 push %rbp
6: 41 57 push %r15
8: 41 56 push %r14
a: 41 55 push %r13
c: 41 54 push %r12
e: 53 push %rbx
f: 48 81 ec a0 00 00 00 sub $0xa0,%rsp
16: 48 89 fb mov %rdi,%rbx
19: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
20: fc ff df
23: 48 8d 6f 48 lea 0x48(%rdi),%rbp
27: 48 89 e8 mov %rbp,%rax
* 2a: 48 c1 e8 03 shr $0x3,%rax <-- trapping instruction
2e: 48 89 44 24 28 mov %rax,0x28(%rsp)
33: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
38: 74 08 je 0x42
3a: 48 89 ef mov %rbp,%rdi
3d: e8 .byte 0xe8
3e: c3 ret
3f: 87 .byte 0x87