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INFO: rcu detected stall in addrconf_rs_timer (4)

Status: closed as invalid on 2022/02/08 10:39
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+ca2665ae8487c46d365d@syzkaller.appspotmail.com
First crash: 2074d, last: 1460d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
INFO: rcu detected stall in addrconf_rs_timer (4) 0 (1) 2020/08/03 16:25
▶ ▼ Similar bugs (27)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in addrconf_rs_timer (2) net 1 362 2220d 2242d 13/29 fixed on 2019/10/21 12:31
linux-4.14 INFO: rcu detected stall in addrconf_rs_timer 1 C error 220 1884d 2246d 0/1 upstream: reported C repro on 2019/09/06 14:33
upstream INFO: rcu detected stall in addrconf_rs_timer net 1 38 2507d 2602d 0/29 closed as dup on 2019/01/02 16:33
linux-4.19 INFO: rcu detected stall in addrconf_rs_timer 1 45 2234d 2246d 0/1 auto-closed as invalid on 2019/12/17 18:46
linux-4.19 BUG: soft lockup in addrconf_rs_timer 1 syz error 24 1004d 1687d 0/1 upstream: reported syz repro on 2021/03/19 06:05
linux-5.15 BUG: soft lockup in addrconf_rs_timer 1 C error 36 870d 882d 0/3 auto-obsoleted due to no activity on 2023/08/23 09:06
upstream INFO: rcu detected stall in addrconf_rs_timer (3) net 1 C inconclusive done 81 2142d 2138d 15/29 fixed on 2020/02/18 14:31
linux-4.19 INFO: rcu detected stall in addrconf_rs_timer (2) 1 5 1884d 1958d 0/1 auto-closed as invalid on 2020/12/31 12:17
upstream INFO: rcu detected stall in addrconf_rs_timer (5) kvm 1 4 1284d 1284d 0/29 auto-closed as invalid on 2022/06/24 22:41
linux-6.1 INFO: rcu detected stall in addrconf_rs_timer origin:lts-only 1 C 83 6d05h 524d 0/3 upstream: reported C repro on 2024/05/24 18:08
linux-5.15 INFO: rcu detected stall in addrconf_rs_timer origin:upstream 1 C error 61 3d15h 691d 0/3 upstream: reported C repro on 2023/12/10 10:27
upstream INFO: rcu detected stall in addrconf_rs_timer (6) x86 mm netfilter 1 syz error error 596 3d08h 516d 0/29 upstream: reported syz repro on 2024/06/01 13:51
upstream BUG: soft lockup in addrconf_rs_timer (3) net 1 syz 8 764d 828d 0/29 auto-obsoleted due to no activity on 2024/01/05 16:48
upstream BUG: soft lockup in addrconf_rs_timer (4) net 1 1 659d 659d 0/29 closed as invalid on 2024/03/12 13:17
android-6-1 BUG: soft lockup in addrconf_rs_timer 1 1 732d 732d 0/2 auto-obsoleted due to no activity on 2024/01/27 13:54
android-5-10 BUG: soft lockup in addrconf_rs_timer (2) 1 C 265 164d 495d 0/2 auto-obsoleted due to no activity on 2025/07/28 18:01
android-5-10 BUG: soft lockup in addrconf_rs_timer 1 2 823d 841d 0/2 auto-obsoleted due to no activity on 2023/10/29 01:38
linux-6.1 BUG: soft lockup in addrconf_rs_timer 1 C done 26 870d 882d 3/3 fixed on 2023/07/30 15:47
linux-4.14 BUG: soft lockup in addrconf_rs_timer 1 C error 133 1042d 2244d 0/1 upstream: reported C repro on 2019/09/08 14:09
android-5-15 BUG: soft lockup in addrconf_rs_timer (2) 1 syz 99 309d 552d 0/2 auto-obsoleted due to no activity on 2025/02/14 09:13
android-6-1 BUG: soft lockup in addrconf_rs_timer (3) 1 1 209d 209d 0/2 auto-obsoleted due to no activity on 2025/07/03 20:11
android-54 BUG: soft lockup in addrconf_rs_timer 1 190 484d 539d 0/2 auto-obsoleted due to no activity on 2024/08/22 17:20
android-6-1 BUG: soft lockup in addrconf_rs_timer (2) 1 syz 176 330d 535d 0/2 auto-obsoleted due to no activity on 2025/01/24 01:43
upstream BUG: soft lockup in addrconf_rs_timer (2) net 1 C 51 862d 883d 23/29 fixed on 2023/07/04 09:17
android-6-1 BUG: soft lockup in addrconf_rs_timer (4) 1 4 39d 80d 0/2 premoderation: reported on 2025/08/11 17:36
android-5-15 BUG: soft lockup in addrconf_rs_timer 1 1 830d 830d 0/2 auto-obsoleted due to no activity on 2023/10/21 14:14
upstream BUG: soft lockup in addrconf_rs_timer net 1 18 2048d 2245d 0/29 auto-closed as invalid on 2020/07/20 22:25

Sample crash report:
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10446 ticks this GP) idle=c0a/1/0x4000000000000000 softirq=11160/11165 fqs=225 
	(t=10502 jiffies g=11097 q=636)
rcu: rcu_preempt kthread starved for 4193 jiffies! g11097 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:29176 pid:   11 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:3779 [inline]
 __schedule+0x893/0x2130 kernel/sched/core.c:4528
 schedule+0xcf/0x270 kernel/sched/core.c:4606
 schedule_timeout+0x148/0x250 kernel/time/timer.c:1871
 rcu_gp_fqs_loop kernel/rcu/tree.c:1925 [inline]
 rcu_gp_kthread+0xb4c/0x1c90 kernel/rcu/tree.c:2099
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
NMI backtrace for cpu 0
CPU: 0 PID: 10177 Comm: syz-executor702 Not tainted 5.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x1e3/0x21e kernel/rcu/tree_stall.h:331
 print_cpu_stall kernel/rcu/tree_stall.h:563 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:637 [inline]
 rcu_pending kernel/rcu/tree.c:3694 [inline]
 rcu_sched_clock_irq.cold+0x472/0xee8 kernel/rcu/tree.c:2567
 update_process_times+0x77/0xd0 kernel/time/timer.c:1709
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
 __run_hrtimer kernel/time/hrtimer.c:1519 [inline]
 __hrtimer_run_queues+0x1ce/0xea0 kernel/time/hrtimer.c:1583
 hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1097
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0x48/0x100 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:slab_alloc_node mm/slub.c:2832 [inline]
RIP: 0010:slab_alloc mm/slub.c:2899 [inline]
RIP: 0010:kmem_cache_alloc+0x138/0x440 mm/slub.c:2904
Code: c6 c7 35 b1 81 48 c7 c7 e0 78 33 8b e8 21 ef a4 ff 45 31 ed e9 bd 00 00 00 45 31 f6 48 85 ed 74 f0 48 8b 45 00 65 48 8b 50 08 <48> 89 c1 65 48 03 0d 65 5f 50 7e 48 8b 71 08 48 39 f2 75 e7 48 8b
RSP: 0018:ffffc90000007990 EFLAGS: 00000286
RAX: 0000607f45e04f00 RBX: ffff88802794e480 RCX: ffffffff86f55f43
RDX: 0000000000004560 RSI: 00000000000000e8 RDI: ffffffff8b45ada0
RBP: ffff88802075c500 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000a20
R13: ffffffff86f55b1e R14: 0000000000000000 R15: 0000000000000a20
 dst_alloc+0x9e/0x650 net/core/dst.c:93
 ip6_dst_alloc+0x2e/0x100 net/ipv6/route.c:356
 icmp6_dst_alloc+0x6d/0x6c0 net/ipv6/route.c:3167
 ndisc_send_skb+0x1207/0x1720 net/ipv6/ndisc.c:488
 ndisc_send_rs+0x12e/0x700 net/ipv6/ndisc.c:702
 addrconf_rs_timer+0x3f2/0x820 net/ipv6/addrconf.c:3873
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1410
 expire_timers kernel/time/timer.c:1455 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1747
 __run_timers kernel/time/timer.c:1728 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1760
 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:393 [inline]
 __irq_exit_rcu kernel/softirq.c:423 [inline]
 irq_exit_rcu+0x132/0x200 kernel/softirq.c:435
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:call_rcu+0x2e7/0x700 kernel/rcu/tree.c:3028
Code: 3c 02 00 0f 85 bb 03 00 00 48 8b 05 53 98 d6 09 49 03 84 24 f0 00 00 00 49 39 c7 0f 8f 65 01 00 00 e8 0d 63 18 00 ff 34 24 9d <48> 83 c4 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 80 3c 02 00 0f 84 2f
RSP: 0018:ffffc9000b1cf7c8 EFLAGS: 00000246
RAX: 0000000000138ecb RBX: ffff88801c6d2e08 RCX: ffffffff8155a937
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8880b9e35830 R08: 0000000000000001 R09: ffffffff8ebaf67f
R10: fffffbfff1d75ecf R11: 1ffffffff1ced6ef R12: ffff8880b9e35740
R13: ffff8880b9e35820 R14: ffff8880b9e357d8 R15: 0000000000000004
 put_task_struct_rcu_user+0x7f/0xb0 kernel/exit.c:178
 finish_task_switch+0x548/0x7a0 kernel/sched/core.c:3652
 context_switch kernel/sched/core.c:3782 [inline]
 __schedule+0x89b/0x2130 kernel/sched/core.c:4528
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:4687
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:40
 __mutex_lock_common kernel/locking/mutex.c:964 [inline]
 __mutex_lock+0xc00/0x10e0 kernel/locking/mutex.c:1103
 futex_cleanup_begin kernel/futex.c:3677 [inline]
 futex_exit_release+0x26/0x220 kernel/futex.c:3729
 exit_mm_release+0x16/0x30 kernel/fork.c:1322
 exit_mm kernel/exit.c:438 [inline]
 do_exit+0x60d/0x29b0 kernel/exit.c:796
 do_group_exit+0x125/0x310 kernel/exit.c:906
 get_signal+0x42a/0x1f10 kernel/signal.c:2758
 arch_do_signal+0x82/0x2390 arch/x86/kernel/signal.c:811
 exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
 exit_to_user_mode_prepare+0x100/0x1a0 kernel/entry/common.c:191
 syscall_exit_to_user_mode+0x38/0x260 kernel/entry/common.c:266
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x449f79
Code: e8 ac e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 ab 03 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2b9fc53db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006dfc28 RCX: 0000000000449f79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dfc28
RBP: 00000000006dfc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc2c
R13: 00007fff52ae4c5f R14: 00007f2b9fc549c0 R15: 00000000006dfc2c

Crashes (121):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/12/07 05:00 upstream e6585a493921 c521566d .config console log report syz C ci-upstream-kasan-gce-root
2020/12/05 18:39 upstream b3298500b23f 50503117 .config console log report syz C ci-upstream-kasan-gce-root
2020/08/27 11:13 upstream 15bc20c6af4c 816e0689 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/04 04:30 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/03/11 05:30 upstream e94148454103 35f53e45 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/03/10 22:53 upstream 30bb5572ce7a 35f53e45 .config console log report syz ci-upstream-kasan-gce-smack-root
2020/03/08 17:56 upstream 61a09258f2e5 2e9971bb .config console log report syz ci-upstream-kasan-gce-smack-root
2021/10/31 19:33 upstream 180eca540ae0 098b5d53 .config console log report info ci-upstream-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/10/10 20:01 upstream efb52a7d9511 838e7e2c .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in addrconf_rs_timer
2021/04/08 14:17 upstream 454859c552da 6a81331a .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/04/05 21:10 upstream 0a50438c8436 6a81331a .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/23 20:05 upstream 3b9cdafb5358 fcc6d71b .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/23 16:12 upstream 3b9cdafb5358 fcc6d71b .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/22 19:08 upstream a99163e9e708 c26fb06b .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/21 20:23 upstream 55f62bc87347 a659b3f1 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/19 17:59 upstream f40ddce88593 f689d40a .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/15 06:10 upstream f40ddce88593 98682e5e .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/14 22:45 upstream 358feceebbf6 98682e5e .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/13 03:52 upstream dcc0b49040c7 98682e5e .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/12 16:15 upstream dcc0b49040c7 a5f86b15 .config console log report info ci-upstream-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/02/08 15:56 upstream 92bf22614b21 2ce644fc .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/29 21:27 upstream bec4c2968fce fc9fd31e .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/29 11:58 upstream bec4c2968fce 6593fd32 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/27 23:57 upstream 76c057c84d28 eefc07f2 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/27 22:52 upstream 76c057c84d28 eefc07f2 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/27 03:12 upstream 13391c60da33 55a7d4df .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/24 20:15 upstream e68061375f79 52e37319 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/23 21:21 upstream fe75a21824e7 52e37319 .config console log report info ci-upstream-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/01/22 09:10 upstream 9f29bd8b2e71 d4f4eca5 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/21 03:16 upstream 75439bc439e0 d4f4eca5 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/20 17:36 upstream 45dfb8a5659a d4f4eca5 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/19 17:24 upstream 1e2a199f6ccd 63631df1 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/19 05:43 upstream 1e2a199f6ccd 63631df1 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/19 04:19 upstream 1e2a199f6ccd 63631df1 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/19 02:19 upstream 19c329f68089 63631df1 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/01/17 23:36 upstream a1339d6355ac 813be542 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/08/17 22:35 net-old 276e189f8e4e a2fe1cb5 .config console log report info ci-upstream-net-this-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/06/12 19:15 bpf-next ca16b429f39b 1ba81399 .config console log report info ci-upstream-bpf-next-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/05/27 20:39 net-next-old 59c56342459a 858ea628 .config console log report info ci-upstream-net-kasan-gce INFO: rcu detected stall in addrconf_rs_timer
2021/06/15 13:13 linux-next a1f92694393a 58636922 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in addrconf_rs_timer
2021/02/05 13:32 upstream dd86e7fa07a3 23a562df .config console log report info ci-upstream-kasan-gce-root BUG: soft lockup in addrconf_rs_timer
2021/01/15 05:41 upstream 146620506274 65a7a854 .config console log report info ci-upstream-kasan-gce-root
2021/01/14 08:02 upstream 65f0d2414b70 269d24e8 .config console log report info ci-upstream-kasan-gce-root
2021/01/10 14:12 upstream 2ff90100ace8 2c1f2513 .config console log report info ci-upstream-kasan-gce-root
2021/01/09 21:11 upstream 996e435fd401 2c1f2513 .config console log report info ci-upstream-kasan-gce-root
2021/01/04 21:49 upstream 36bbbd0e234d 2a28ff1f .config console log report info ci-upstream-kasan-gce-root
2021/01/02 03:31 upstream eda809aef534 79264ae3 .config console log report info ci-upstream-kasan-gce
2021/01/02 00:02 upstream eda809aef534 79264ae3 .config console log report info ci-upstream-kasan-gce-root
2020/12/30 05:34 upstream 139711f033f6 0fa352f2 .config console log report info ci-upstream-kasan-gce-root
2020/12/29 15:59 upstream dea8dcf2a9fa 80910769 .config console log report info ci-upstream-kasan-gce-root
2020/12/16 12:23 upstream d635a69dd498 f213e07e .config console log report info ci-upstream-kasan-gce-root
2020/12/15 08:40 upstream 148842c98a24 97183ed7 .config console log report info ci-upstream-kasan-gce-root
2020/12/14 17:47 upstream 2c85ebc57b3e 97183ed7 .config console log report info ci-upstream-kasan-gce-root
2020/12/14 06:43 upstream 6bff9bb8a292 b22a7ec3 .config console log report info ci-upstream-kasan-gce-root
2020/12/13 23:23 upstream 6bff9bb8a292 b22a7ec3 .config console log report info ci-upstream-kasan-gce-root
2020/12/13 17:15 upstream 6bff9bb8a292 bca53db9 .config console log report info ci-upstream-kasan-gce-root
2020/08/05 17:32 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-smack-root
2020/02/26 03:07 upstream f8788d86ab28 59b57593 .config console log report ci-upstream-kasan-gce-smack-root
2020/12/06 06:23 upstream 33256ce19411 f12ba0c5 .config console log report info ci-upstream-kasan-gce-386
2021/01/11 07:13 linux-next ef8b014ee4a1 2c1f2513 .config console log report info ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.