ip6_tunnel: ip6tnl3 xmit: Local address not yet configured! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (1 GPs behind) idle=5d8c/1/0x4000000000000000 softirq=55947/55950 fqs=0 rcu: (detected by 1, t=10506 jiffies, g=73441, q=150 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 19527 Comm: syz-executor.1 Not tainted 6.5.0-rc3-syzkaller-00225-gf837f0a3c948 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:rcu_read_lock include/linux/rcupdate.h:750 [inline] RIP: 0010:advance_sched+0x68e/0xc60 net/sched/sch_taprio.c:996 Code: 31 d2 31 f6 b9 02 00 00 00 68 20 77 5a 88 48 c7 c7 80 65 9a 8c e8 12 11 0d f9 e8 dd ca d7 01 31 ff 89 c3 89 c6 e8 62 f5 2b f9 <85> db 58 0f 85 78 02 00 00 e8 e4 f9 2b f9 48 8b 7c 24 20 e8 4a 99 RSP: 0018:ffffc90000007d88 EFLAGS: 00000046 RAX: 0000000080010000 RBX: 0000000000000001 RCX: ffffffff885a775e RDX: ffff888021148000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff888069090800 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: ffffc90000007ff8 R12: 0000000000000000 R13: ffff888069090800 R14: ffff88805b4b2340 R15: ffff888069090000 FS: 0000555555b5f480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f55636ffa61 CR3: 000000002b6f7000 CR4: 0000000000350ef0 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline] __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1109 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:trace_block_touch_buffer include/trace/events/block.h:45 [inline] RIP: 0010:touch_buffer fs/buffer.c:63 [inline] RIP: 0010:__find_get_block+0x22a/0xb60 fs/buffer.c:1423 Code: 65 48 89 2d 78 a9 08 7e e8 c3 99 8b ff 48 8d 7d 60 be 04 00 00 00 e8 75 98 df ff f0 ff 45 60 e8 dc 48 92 ff fb 0f 1f 44 00 00 a1 99 8b ff 65 8b 1d d6 e1 08 7e bf 07 00 00 00 89 de e8 fe 94 RSP: 0018:ffffc9001553f6c8 EFLAGS: 00000206 RAX: 000000000000055f RBX: 0000000000000000 RCX: 1ffffffff2311998 RDX: 0000000000000000 RSI: ffffffff8a6c7880 RDI: ffffffff8ac80960 RBP: ffff8880755ec828 R08: 0000000000000001 R09: fffffbfff23095e4 R10: ffffffff9184af27 R11: ffff88801034a3f0 R12: ffff8880755ec828 R13: 0000000000000000 R14: 000000000000010d R15: 000000000000010d __getblk_gfp+0x2b/0x80 fs/buffer.c:1441 sb_getblk include/linux/buffer_head.h:369 [inline] __ext4_get_inode_loc+0x4e3/0x1330 fs/ext4/inode.c:4350 ext4_get_inode_loc+0xbe/0x160 fs/ext4/inode.c:4478 ext4_reserve_inode_write+0xc9/0x270 fs/ext4/inode.c:5708 __ext4_mark_inode_dirty+0x196/0x800 fs/ext4/inode.c:5885 __ext4_new_inode+0x2b9e/0x5660 fs/ext4/ialloc.c:1344 ext4_symlink+0x5d6/0xa00 fs/ext4/namei.c:3393 vfs_symlink fs/namei.c:4477 [inline] vfs_symlink+0x3e5/0x620 fs/namei.c:4461 do_symlinkat+0x28e/0x310 fs/namei.c:4503 __do_sys_symlinkat fs/namei.c:4519 [inline] __se_sys_symlinkat fs/namei.c:4516 [inline] __x64_sys_symlinkat+0x97/0xc0 fs/namei.c:4516 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f556367c2a7 Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeef4d00f8 EFLAGS: 00000206 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 00007ffeef4d01c0 RCX: 00007f556367c2a7 RDX: 00007f55636c851b RSI: 00000000ffffff9c RDI: 00007f55636c750e RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 rcu: rcu_preempt kthread starved for 10506 jiffies! g73441 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:27440 pid:16 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu: Stack dump where RCU GP kthread last ran: CPU: 1 PID: 3275 Comm: kworker/u4:6 Not tainted 6.5.0-rc3-syzkaller-00225-gf837f0a3c948 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline] RIP: 0010:smp_call_function_many_cond+0x4d6/0x1570 kernel/smp.c:835 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 1c 5f 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 3c 0e 00 00 8b 43 08 31 RSP: 0018:ffffc9000cb1f938 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b9844fe0 RCX: 0000000000000000 RDX: ffff88802ab3bb80 RSI: ffffffff817b1234 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10173089fd R13: 0000000000000001 R14: ffff8880b993d580 R15: ffff8880b9844fe8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000000c776000 CR4: 0000000000350ee0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1003 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2001 [inline] text_poke_bp_batch+0x250/0x780 arch/x86/kernel/alternative.c:2211 text_poke_flush arch/x86/kernel/alternative.c:2402 [inline] text_poke_flush arch/x86/kernel/alternative.c:2399 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2409 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x32e/0x410 kernel/jump_label.c:829 static_key_enable_cpuslocked+0x1b5/0x270 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate mm/kfence/core.c:831 [inline] toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:823 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597 worker_thread+0x687/0x1110 kernel/workqueue.c:2748 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000