[ 1669.301715][ T9570] [ 1669.301841][ T9570] ============================= [ 1669.302002][ T9570] WARNING: suspicious RCU usage [ 1669.302162][ T9570] 6.12.0-rc4-virtme #1 Not tainted [ 1669.302320][ T9570] ----------------------------- [ 1669.302542][ T9570] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1669.302780][ T9570] [ 1669.302780][ T9570] other info that might help us debug this: [ 1669.302780][ T9570] [ 1669.303083][ T9570] [ 1669.303083][ T9570] rcu_scheduler_active = 2, debug_locks = 1 [ 1669.303300][ T9570] no locks held by smcrouted/9570. [ 1669.303461][ T9570] [ 1669.303461][ T9570] stack backtrace: [ 1669.303656][ T9570] CPU: 1 UID: 0 PID: 9570 Comm: smcrouted Not tainted 6.12.0-rc4-virtme #1 [ 1669.303920][ T9570] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1669.304261][ T9570] Call Trace: [ 1669.304390][ T9570] [ 1669.304501][ T9570] dump_stack_lvl+0xb0/0xd0 [ 1669.304668][ T9570] lockdep_rcu_suspicious+0x1ea/0x280 [ 1669.304829][ T9570] ip6mr_get_table+0x142/0x190 [ 1669.304984][ T9570] ip6_mroute_setsockopt+0x185/0x12d0 [ 1669.305149][ T9570] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1669.305397][ T9570] ? find_held_lock+0x2c/0x110 [ 1669.305627][ T9570] ? __lock_release+0x103/0x460 [ 1669.305778][ T9570] ? __might_fault+0x11b/0x170 [ 1669.305931][ T9570] ? __pfx___lock_release+0x10/0x10 [ 1669.306081][ T9570] ? trace_lock_acquire+0x14d/0x1f0 [ 1669.306236][ T9570] ? __might_fault+0xc3/0x170 [ 1669.306388][ T9570] ? lock_acquire+0x32/0xc0 [ 1669.306543][ T9570] ? __might_fault+0xc3/0x170 [ 1669.306689][ T9570] ? __might_fault+0x11b/0x170 [ 1669.306843][ T9570] do_ipv6_setsockopt+0x705/0x34e0 [ 1669.306993][ T9570] ? __lock_release+0xf0/0x460 [ 1669.307146][ T9570] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1669.307295][ T9570] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1669.307444][ T9570] ? rcu_read_lock_any_held+0x43/0xb0 [ 1669.307597][ T9570] ? validate_chain+0x1fe/0xae0 [ 1669.307742][ T9570] ? is_bpf_text_address+0x67/0x120 [ 1669.307900][ T9570] ? __pfx_validate_chain+0x10/0x10 [ 1669.308047][ T9570] ? hlock_class+0x4e/0x130 [ 1669.308208][ T9570] ? mark_lock+0x38/0x3e0 [ 1669.308329][ T9570] ? __lock_acquire+0xb3f/0x1580 [ 1669.308485][ T9570] ? find_held_lock+0x2c/0x110 [ 1669.308643][ T9570] ? ipv6_setsockopt+0x7f/0xe0 [ 1669.308807][ T9570] ipv6_setsockopt+0x7f/0xe0 [ 1669.308968][ T9570] rawv6_setsockopt+0xb7/0x550 [ 1669.309126][ T9570] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1669.309281][ T9570] ? __lock_acquire+0xb3f/0x1580 [ 1669.309429][ T9570] ? kfree+0x2d/0x340 [ 1669.309551][ T9570] do_sock_setsockopt+0x149/0x3a0 [ 1669.309699][ T9570] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1669.309854][ T9570] ? __lock_release+0x103/0x460 [ 1669.310001][ T9570] ? fd_install+0x1d1/0x5a0 [ 1669.310169][ T9570] ? trace_lock_acquire+0x14d/0x1f0 [ 1669.310326][ T9570] ? fdget+0x52/0x1e0 [ 1669.310442][ T9570] __sys_setsockopt+0x104/0x1a0 [ 1669.310593][ T9570] ? __pfx___sys_setsockopt+0x10/0x10 [ 1669.310742][ T9570] ? __sys_socket+0x168/0x1e0 [ 1669.310887][ T9570] ? __pfx___sys_socket+0x10/0x10 [ 1669.311042][ T9570] __x64_sys_setsockopt+0xbd/0x160 [ 1669.311201][ T9570] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1669.311383][ T9570] do_syscall_64+0xc1/0x1d0 [ 1669.311535][ T9570] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1669.311716][ T9570] RIP: 0033:0x7f765659b91e [ 1669.311877][ T9570] Code: 0f 1f 40 00 48 8b 15 e1 94 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 a9 [ 1669.312403][ T9570] RSP: 002b:00007ffecaa688f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1669.312628][ T9570] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f765659b91e [ 1669.312846][ T9570] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1669.313264][ T9570] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1669.313509][ T9570] R10: 00007ffecaa6891c R11: 0000000000000246 R12: 0000000000000000 [ 1669.313757][ T9570] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f76566a0000 [ 1669.314102][ T9570] [ 1669.332146][ T9570] veth0: entered allmulticast mode [ 1669.333106][ T9570] veth1: entered allmulticast mode [ 1669.333458][ T9570] veth2: entered allmulticast mode [ 1669.333762][ T9570] veth3: entered allmulticast mode [ 1669.334068][ T9570] veth4: entered allmulticast mode [ 1669.334398][ T9570] veth5: entered allmulticast mode [ 1716.555875][ T9570] veth0: left allmulticast mode [ 1716.556197][ T9570] veth1: left allmulticast mode [ 1716.556495][ T9570] veth2: left allmulticast mode [ 1716.556738][ T9570] veth3: left allmulticast mode [ 1716.556991][ T9570] veth4: left allmulticast mode [ 1716.557247][ T9570] veth5: left allmulticast mode