RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055555f3ff7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000005a R14: 000000000007a562 R15: 00007ffd1442ef40 watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor:5832] Modules linked in: irq event stamp: 1729982 hardirqs last enabled at (1729981): [] irqentry_exit+0x3b/0x90 kernel/entry/common.c:310 hardirqs last disabled at (1729982): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (1729980): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (1729980): [] handle_softirqs+0x5be/0x8e0 kernel/softirq.c:607 softirqs last disabled at (1729921): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (1729921): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (1729921): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 5832 Comm: syz-executor Not tainted 6.16.0-rc3-syzkaller-00306-gaaf724ed6926 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0xd7b/0x1510 kernel/smp.c:885 Code: e8 8a 1a 0c 00 45 85 ed 74 46 48 8b 14 24 49 89 d6 49 89 d5 49 c1 ee 03 41 83 e5 07 4d 01 e6 41 83 c5 03 e8 27 1f 0c 00 f3 90 <41> 0f b6 06 41 38 c5 7c 08 84 c0 0f 85 6f 05 00 00 8b 43 08 31 ff RSP: 0018:ffffc900035f7750 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b853ff60 RCX: ffffffff81b000bd RDX: ffff8880264a8000 RSI: ffffffff81b00099 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000003 R14: ffffed10170a7fed R15: ffff8880b843b6c0 FS: 000055555f3ff500(0000) GS:ffff888124759000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000034000 CR3: 000000005b4e3000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline] flush_tlb_mm_range+0x4a0/0x1790 arch/x86/mm/tlb.c:1451 dup_mmap+0xfa2/0x21d0 mm/mmap.c:1877 dup_mm kernel/fork.c:1477 [inline] copy_mm kernel/fork.c:1529 [inline] copy_process+0x4081/0x76a0 kernel/fork.c:2169 kernel_clone+0xfc/0x960 kernel/fork.c:2599 __do_sys_clone+0xce/0x120 kernel/fork.c:2742 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb369185193 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffd1442eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb369185193 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055555f3ff7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000005a R14: 000000000007a562 R15: 00007ffd1442ef40 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 9493 Comm: syz.0.966 Not tainted 6.16.0-rc3-syzkaller-00306-gaaf724ed6926 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:mark_usage kernel/locking/lockdep.c:4677 [inline] RIP: 0010:__lock_acquire+0x3eb/0x1c90 kernel/locking/lockdep.c:5194 Code: 85 d2 74 14 ba 06 00 00 00 4c 89 ee 48 89 ef e8 9b f3 ff ff 85 c0 74 5e ba 08 00 00 00 4c 89 ee 48 89 ef e8 87 f3 ff ff 85 c0 <74> 4a 8b 05 fd 84 43 19 85 c0 74 72 48 8b 8d e0 0a 00 00 85 db 0f RSP: 0000:ffffc90000a08c40 EFLAGS: 00000002 RAX: 0000000000000001 RBX: 0000000000000005 RCX: 0000000000000008 RDX: 0000000000000000 RSI: ffff888029060bb8 RDI: ffff888029060000 RBP: ffff888029060000 R08: 0000000000000001 R09: 0000000000000001 R10: 00000000000000c8 R11: 0000000000000001 R12: ffff888029060af0 R13: ffff888029060bb8 R14: 0000000000000005 R15: 0000000000000003 FS: 00005555767e0500(0000) GS:ffff888124859000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3eee62d360 CR3: 000000005ec9b000 CR4: 0000000000350ef0 Call Trace: lock_acquire kernel/locking/lockdep.c:5871 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5828 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] advance_sched+0xd9/0xc80 net/sched/sch_taprio.c:924 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/0x3f0 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_lockdep_current_cpu_online+0x41/0x150 kernel/rcu/tree.c:3998 Code: 0a 8b 15 5e cc 06 0f 85 d2 75 05 e9 24 e3 6e ff 55 53 65 ff 05 40 12 2b 12 e8 db 06 dd 09 48 c7 c3 00 24 ce 93 89 c5 83 f8 07 <0f> 87 ed 00 00 00 48 8d 3c ed a0 1d f2 8d 48 b8 00 00 00 00 00 fc RSP: 0000:ffffc90003137a28 EFLAGS: 00000297 RAX: 0000000000000001 RBX: ffffffff93ce2400 RCX: ffffffff81f29008 RDX: 0000000000000001 RSI: ffffffff8c156860 RDI: ffffffff8c1568a0 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0001fc3b80 R13: 000000000000022f R14: ffff88802415d340 R15: dffffc0000000000 rcu_read_lock_held_common kernel/rcu/update.c:113 [inline] rcu_read_lock_held+0x27/0x50 kernel/rcu/update.c:349 xa_entry include/linux/xarray.h:1226 [inline] xas_next_entry+0x2ba/0x3c0 include/linux/xarray.h:1731 next_uptodate_folio+0x29/0x4a0 mm/filemap.c:3562 filemap_map_pages+0x63a/0x1680 mm/filemap.c:3755 do_fault_around mm/memory.c:5548 [inline] do_read_fault mm/memory.c:5581 [inline] do_fault mm/memory.c:5724 [inline] do_pte_missing mm/memory.c:4251 [inline] handle_pte_fault mm/memory.c:6069 [inline] __handle_mm_fault+0x3b3b/0x5490 mm/memory.c:6212 handle_mm_fault+0x589/0xd10 mm/memory.c:6381 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x5c/0xb0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f3eee4643c0 Code: 48 8d ba 18 02 00 00 c6 05 84 13 e8 00 00 48 89 3d 5d 13 e8 00 48 8d 3d 4e 13 e8 00 48 8d 86 e8 fd ff ff 48 89 3d 60 13 e8 00 <0f> b7 3d 99 8f 1c 00 48 89 05 42 13 e8 00 66 89 3d a3 13 e8 00 48 RSP: 002b:00007fffc3be0770 EFLAGS: 00010246 RAX: 00000000005ffde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b2f420000 RSI: 0000000000600000 RDI: 00007f3eef2e5700 RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000040000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 00000000000927c0 R14: 000000000007a443 R15: 00007fffc3be0a20