EXT4-fs warning (device sda1): ext4_group_extend:1762: can't shrink FS - resize aborted rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9828 rcu: (detected by 0, t=10503 jiffies, g=133273, q=1541) syz-executor4 R running task 24744 9828 8237 0x00000006 Call Trace: sched_show_task.cold.86+0x2b6/0x30a kernel/sched/core.c:5293 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:690 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:703 [inline] print_other_cpu_stall.cold.69+0x5b5/0x8db kernel/rcu/tree.c:1289 check_cpu_stall kernel/rcu/tree.c:1429 [inline] rcu_pending kernel/rcu/tree.c:3018 [inline] rcu_check_callbacks+0xfe8/0x1410 kernel/rcu/tree.c:2521 update_process_times+0x2d/0x70 kernel/time/timer.c:1635 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:161 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:__xfrm4_selector_match net/xfrm/xfrm_policy.c:195 [inline] RIP: 0010:xfrm_selector_match+0x82d/0xf90 net/xfrm/xfrm_policy.c:219 Code: 00 00 41 80 fe 06 0f 84 0f 05 00 00 41 80 fe 11 0f 84 05 05 00 00 41 80 fe 01 0f 84 39 02 00 00 31 f6 89 75 c8 e8 e3 10 be fa <8b> 75 c8 31 ff 0f b7 45 d0 41 31 f7 44 21 f8 45 31 ff 89 c6 89 45 RSP: 0018:ffff888060e9f2e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: ffff888094ce2588 RCX: ffffc9000e052000 RDX: 0000000000040000 RSI: ffffffff86c3950d RDI: ffff888085e1b5f8 RBP: ffff888060e9f320 R08: ffff8880a3de0640 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880a3de0640 R12: ffff888085e1b5d0 R13: 0000000000000011 R14: 0000000000000011 R15: 0000000000006020 xfrm_policy_match+0x1ef/0x2d0 net/xfrm/xfrm_policy.c:1894 __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2022 [inline] xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline] xfrm_policy_lookup_bytype+0xa1a/0xe70 net/xfrm/xfrm_policy.c:2113 xfrm_policy_lookup+0x7e/0x80 net/xfrm/xfrm_policy.c:2145 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline] xfrm_lookup_with_ifid+0x972/0x2b80 net/xfrm/xfrm_policy.c:3080 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582 ip_route_connect include/net/route.h:309 [inline] __ip4_datagram_connect+0x70e/0x1330 net/ipv4/datagram.c:51 __ip6_datagram_connect+0xf5b/0x1470 net/ipv6/datagram.c:191 ip6_datagram_connect+0x2f/0x50 net/ipv6/datagram.c:273 inet_dgram_connect+0x154/0x2e0 net/ipv4/af_inet.c:571 __sys_connect+0x37d/0x4c0 net/socket.c:1664 __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4579b9 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3b8422dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004579b9 RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3b8422e6d4 R13: 00000000004be135 R14: 00000000004ce2f0 R15: 00000000ffffffff syz-executor4 R running task 24744 9828 8237 0x8000000e Call Trace: sched_show_task.cold.86+0x2b6/0x30a kernel/sched/core.c:5293 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:690 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:705 [inline] print_other_cpu_stall.cold.69+0x615/0x8db kernel/rcu/tree.c:1289 check_cpu_stall kernel/rcu/tree.c:1429 [inline] rcu_pending kernel/rcu/tree.c:3018 [inline] rcu_check_callbacks+0xfe8/0x1410 kernel/rcu/tree.c:2521 update_process_times+0x2d/0x70 kernel/time/timer.c:1635 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:161 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:__xfrm4_selector_match net/xfrm/xfrm_policy.c:195 [inline] RIP: 0010:xfrm_selector_match+0x82d/0xf90 net/xfrm/xfrm_policy.c:219 Code: 00 00 41 80 fe 06 0f 84 0f 05 00 00 41 80 fe 11 0f 84 05 05 00 00 41 80 fe 01 0f 84 39 02 00 00 31 f6 89 75 c8 e8 e3 10 be fa <8b> 75 c8 31 ff 0f b7 45 d0 41 31 f7 44 21 f8 45 31 ff 89 c6 89 45 RSP: 0018:ffff888060e9f2e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: ffff888094ce2588 RCX: ffffc9000e052000 RDX: 0000000000040000 RSI: ffffffff86c3950d RDI: ffff888085e1b5f8 RBP: ffff888060e9f320 R08: ffff8880a3de0640 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880a3de0640 R12: ffff888085e1b5d0 R13: 0000000000000011 R14: 0000000000000011 R15: 0000000000006020 xfrm_policy_match+0x1ef/0x2d0 net/xfrm/xfrm_policy.c:1894 __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2022 [inline] xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline] xfrm_policy_lookup_bytype+0xa1a/0xe70 net/xfrm/xfrm_policy.c:2113 xfrm_policy_lookup+0x7e/0x80 net/xfrm/xfrm_policy.c:2145 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline] xfrm_lookup_with_ifid+0x972/0x2b80 net/xfrm/xfrm_policy.c:3080 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582 ip_route_connect include/net/route.h:309 [inline] __ip4_datagram_connect+0x70e/0x1330 net/ipv4/datagram.c:51 __ip6_datagram_connect+0xf5b/0x1470 net/ipv6/datagram.c:191 ip6_datagram_connect+0x2f/0x50 net/ipv6/datagram.c:273 inet_dgram_connect+0x154/0x2e0 net/ipv4/af_inet.c:571 __sys_connect+0x37d/0x4c0 net/socket.c:1664 __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4579b9 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3b8422dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004579b9 RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3b8422e6d4 R13: 00000000004be135 R14: 00000000004ce2f0 R15: 00000000ffffffff