======================================
| 0
| xx__-> [ 4013.116243][    C3] ------------[ cut here ]------------
| [ 4013.116597][ C3] WARNING: CPU: 3 PID: 0 at net/ipv4/af_inet.c:153 inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
| [ 4013.116873][    C3] Modules linked in: unix_diag dccp_ipv6 dccp_ipv4 dccp bonding sch_etf sch_fq ip6_gre gre ipt_rpfilter act_mirred act_tunnel_key bareudp mpls_gso mpls_iptunnel mpls_router xt_length nft_compat nf_tables act_ct nf_flow_table drop_monitor sctp_diag sctp cls_matchall act_gact sch_ingress xfrm_user geneve vxlan act_csum act_pedit cls_flower sch_prio openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh [last unloaded: test_bpf]
[ 4013.118773][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4013.118962][ C3] RIP: 0010:inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 4013.119155][ C3] Code: 5e 41 5f e9 38 7a be fd 0f b6 75 12 48 83 c4 18 48 89 ea 48 c7 c7 c0 70 1c ba 5b 5d 41 5c 41 5d 41 5e 41 5f e9 17 7a be fd 90 <0f> 0b 90 e9 44 fe ff ff 90 0f 0b 90 e9 87 fe ff ff 90 0f 0b 90 e9
All code
========
   0:	5e                   	pop    %rsi
   1:	41 5f                	pop    %r15
   3:	e9 38 7a be fd       	jmp    0xfffffffffdbe7a40
   8:	0f b6 75 12          	movzbl 0x12(%rbp),%esi
   c:	48 83 c4 18          	add    $0x18,%rsp
  10:	48 89 ea             	mov    %rbp,%rdx
  13:	48 c7 c7 c0 70 1c ba 	mov    $0xffffffffba1c70c0,%rdi
  1a:	5b                   	pop    %rbx
  1b:	5d                   	pop    %rbp
  1c:	41 5c                	pop    %r12
  1e:	41 5d                	pop    %r13
  20:	41 5e                	pop    %r14
  22:	41 5f                	pop    %r15
  24:	e9 17 7a be fd       	jmp    0xfffffffffdbe7a40
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 44 fe ff ff       	jmp    0xfffffffffffffe76
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	e9 87 fe ff ff       	jmp    0xfffffffffffffec2
  3b:	90                   	nop
  3c:	0f 0b                	ud2
  3e:	90                   	nop
  3f:	e9                   	.byte 0xe9

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 44 fe ff ff       	jmp    0xfffffffffffffe4c
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	e9 87 fe ff ff       	jmp    0xfffffffffffffe98
  11:	90                   	nop
  12:	0f 0b                	ud2
  14:	90                   	nop
  15:	e9                   	.byte 0xe9
[ 4013.119685][    C3] RSP: 0018:ffffc90000270dc0 EFLAGS: 00010206
[ 4013.119881][    C3] RAX: 0000000000000009 RBX: ffffffffbbaae1e0 RCX: ffffffffb960defe
[ 4013.120095][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888005d21180
[ 4013.120325][    C3] RBP: ffff888005d21040 R08: 0000000000000000 R09: ffffed1000ba4230
[ 4013.120548][    C3] R10: ffff888005d21183 R11: 0000000000000000 R12: ffff888005d21180
[ 4013.120769][    C3] R13: ffffc90000270eb8 R14: ffffffffb72713fc R15: 0000000000000000
[ 4013.120985][    C3] FS:  0000000000000000(0000) GS:ffff8880b03c3000(0000) knlGS:0000000000000000
[ 4013.121247][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4013.121436][    C3] CR2: 00007fbb30fec000 CR3: 0000000025b40003 CR4: 0000000000772ef0
[ 4013.121652][    C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4013.121873][    C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4013.122089][    C3] PKRU: 55555554
[ 4013.122213][    C3] Call Trace:
[ 4013.122332][    C3]  <IRQ>
[ 4013.122413][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 4013.122563][ C3] ? __warn (kernel/panic.c:748) 
[ 4013.122680][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 4013.122827][ C3] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4013.122972][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 4013.123118][ C3] ? handle_bug (arch/x86/kernel/traps.c:337) 
[ 4013.123269][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:391 (discriminator 1)) 
[ 4013.123419][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4013.123562][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.123716][ C3] ? inet_sock_destruct (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 net/ipv4/af_inet.c:153) 
[ 4013.123861][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 4013.124013][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.124156][ C3] __sk_destruct (net/core/sock.c:2293) 
[ 4013.124319][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.124471][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.124616][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 4013.124767][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 4013.124916][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 4013.125102][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 4013.125223][ C3] handle_softirqs (kernel/softirq.c:561) 
[ 4013.125371][ C3] __irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662) 
[ 4013.125516][ C3] irq_exit_rcu (kernel/softirq.c:680) 
[ 4013.125630][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 4013.125777][    C3]  </IRQ>
[ 4013.125855][    C3]  <TASK>
[ 4013.125934][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 4013.126110][ C3] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:749) 
[ 4013.126269][ C3] Code: 4c 01 c7 4c 29 c2 e9 6e ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 93 fd 0a 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 6e ff ff ff       	jmp    0xffffffffffffff79
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 93 fd 0a 00 	verw   0xafd93(%rip)        # 0xafdbb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[ 4013.126780][    C3] RSP: 0018:ffffc90000157df0 EFLAGS: 00000242
[ 4013.126968][    C3] RAX: 000000000610372f RBX: 1ffff9200002afc1 RCX: ffffffffb9bb1ca5
[ 4013.127192][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb71833f3
[ 4013.127410][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9f667a
[ 4013.127634][    C3] R10: ffff88806cfb33d3 R11: 0000000000000000 R12: 0000000000000000
[ 4013.127851][    C3] R13: ffff888001b1c640 R14: dffffc0000000000 R15: 0000000000000000
[ 4013.128071][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 4013.128226][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 4013.128376][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 4013.128527][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 4013.128671][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 4013.128816][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 4013.128974][ C3] do_idle (kernel/sched/idle.c:325) 
[ 4013.129092][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 4013.129245][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 4013.129393][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 4013.129546][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 4013.131177][    C3] ------------[ cut here ]------------
| [ 4013.131325][ C3] WARNING: CPU: 3 PID: 0 at net/ipv4/af_inet.c:156 inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
| [ 4013.131576][    C3] Modules linked in: unix_diag dccp_ipv6 dccp_ipv4 dccp bonding sch_etf sch_fq ip6_gre gre ipt_rpfilter act_mirred act_tunnel_key bareudp mpls_gso mpls_iptunnel mpls_router xt_length nft_compat nf_tables act_ct nf_flow_table drop_monitor sctp_diag sctp cls_matchall act_gact sch_ingress xfrm_user geneve vxlan act_csum act_pedit cls_flower sch_prio openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh [last unloaded: test_bpf]
| [ 4013.132992][    C3] Tainted: [W]=WARN
[ 4013.133107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4013.133293][ C3] RIP: 0010:inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 4013.133480][ C3] Code: 5d 41 5c 41 5d 41 5e 41 5f e9 17 7a be fd 90 0f 0b 90 e9 44 fe ff ff 90 0f 0b 90 e9 87 fe ff ff 90 0f 0b 90 e9 b4 fe ff ff 90 <0f> 0b 90 e9 ea fe ff ff e8 1e 50 2e fe e9 5a fd ff ff 4c 89 f7 48
All code
========
   0:	5d                   	pop    %rbp
   1:	41 5c                	pop    %r12
   3:	41 5d                	pop    %r13
   5:	41 5e                	pop    %r14
   7:	41 5f                	pop    %r15
   9:	e9 17 7a be fd       	jmp    0xfffffffffdbe7a25
   e:	90                   	nop
   f:	0f 0b                	ud2
  11:	90                   	nop
  12:	e9 44 fe ff ff       	jmp    0xfffffffffffffe5b
  17:	90                   	nop
  18:	0f 0b                	ud2
  1a:	90                   	nop
  1b:	e9 87 fe ff ff       	jmp    0xfffffffffffffea7
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 b4 fe ff ff       	jmp    0xfffffffffffffedd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 ea fe ff ff       	jmp    0xffffffffffffff1c
  32:	e8 1e 50 2e fe       	call   0xfffffffffe2e5055
  37:	e9 5a fd ff ff       	jmp    0xfffffffffffffd96
  3c:	4c 89 f7             	mov    %r14,%rdi
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 ea fe ff ff       	jmp    0xfffffffffffffef2
   8:	e8 1e 50 2e fe       	call   0xfffffffffe2e502b
   d:	e9 5a fd ff ff       	jmp    0xfffffffffffffd6c
  12:	4c 89 f7             	mov    %r14,%rdi
  15:	48                   	rex.W
[ 4013.133978][    C3] RSP: 0018:ffffc90000270dc0 EFLAGS: 00010202
[ 4013.134160][    C3] RAX: 0000000000000ff7 RBX: ffffffffbbaae1e0 RCX: ffffffffb960df4a
[ 4013.134387][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888005d212c4
[ 4013.134602][    C3] RBP: ffff888005d21040 R08: 0000000000000000 R09: ffffed1000ba425b
[ 4013.134812][    C3] R10: ffff888005d212df R11: 0000000000000000 R12: ffff888005d212dc
[ 4013.135027][    C3] R13: ffffc90000270eb8 R14: ffffffffb72713fc R15: 0000000000000000
[ 4013.135256][    C3] FS:  0000000000000000(0000) GS:ffff8880b03c3000(0000) knlGS:0000000000000000
[ 4013.135509][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4013.135690][    C3] CR2: 00007fbb30fec000 CR3: 0000000025b40003 CR4: 0000000000772ef0
[ 4013.135906][    C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4013.136122][    C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4013.136347][    C3] PKRU: 55555554
[ 4013.136456][    C3] Call Trace:
[ 4013.136567][    C3]  <IRQ>
[ 4013.136641][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 4013.136787][ C3] ? __warn (kernel/panic.c:748) 
[ 4013.136899][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 4013.137043][ C3] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4013.137202][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 4013.137350][ C3] ? handle_bug (arch/x86/kernel/traps.c:337) 
[ 4013.137495][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:391 (discriminator 1)) 
[ 4013.137641][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4013.137788][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.137939][ C3] ? inet_sock_destruct (./arch/x86/include/asm/atomic.h:23 (discriminator 3) ./include/linux/atomic/atomic-arch-fallback.h:457 (discriminator 3) ./include/linux/atomic/atomic-instrumented.h:33 (discriminator 3) ./include/linux/refcount.h:136 (discriminator 3) net/ipv4/af_inet.c:154 (discriminator 3)) 
[ 4013.138086][ C3] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 4013.138246][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.138393][ C3] __sk_destruct (net/core/sock.c:2293) 
[ 4013.138541][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.138688][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 4013.138832][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 4013.138986][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 4013.139134][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 4013.139326][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 4013.139445][ C3] handle_softirqs (kernel/softirq.c:561) 
[ 4013.139594][ C3] __irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662) 
[ 4013.139739][ C3] irq_exit_rcu (kernel/softirq.c:680) 
[ 4013.139852][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 4013.139998][    C3]  </IRQ>
[ 4013.140072][    C3]  <TASK>
[ 4013.140148][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 4013.140338][ C3] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:749) 
[ 4013.140490][ C3] Code: 4c 01 c7 4c 29 c2 e9 6e ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 93 fd 0a 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 6e ff ff ff       	jmp    0xffffffffffffff79
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 93 fd 0a 00 	verw   0xafd93(%rip)        # 0xafdbb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[ 4013.140996][    C3] RSP: 0018:ffffc90000157df0 EFLAGS: 00000242
[ 4013.141177][    C3] RAX: 000000000610372f RBX: 1ffff9200002afc1 RCX: ffffffffb9bb1ca5
[ 4013.141399][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb71833f3
[ 4013.141621][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9f667a
[ 4013.141834][    C3] R10: ffff88806cfb33d3 R11: 0000000000000000 R12: 0000000000000000
[ 4013.142048][    C3] R13: ffff888001b1c640 R14: dffffc0000000000 R15: 0000000000000000
[ 4013.142272][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 4013.142419][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 4013.142566][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 4013.142710][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 4013.142854][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 4013.142999][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 4013.143147][ C3] do_idle (kernel/sched/idle.c:325) 
[ 4013.143266][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 4013.143416][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 4013.143562][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


Finger prints:
inet_sock_destruct:__sk_destruct:rcu_do_batch:rcu_core:handle_softirqs