[ 1320.709684][ T8798] [ 1320.709820][ T8798] ============================= [ 1320.709999][ T8798] WARNING: suspicious RCU usage [ 1320.710331][ T8798] 6.12.0-rc6-virtme #1 Not tainted [ 1320.710559][ T8798] ----------------------------- [ 1320.710733][ T8798] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1320.711032][ T8798] [ 1320.711032][ T8798] other info that might help us debug this: [ 1320.711032][ T8798] [ 1320.711385][ T8798] [ 1320.711385][ T8798] rcu_scheduler_active = 2, debug_locks = 1 [ 1320.711747][ T8798] no locks held by smcrouted/8798. [ 1320.711920][ T8798] [ 1320.711920][ T8798] stack backtrace: [ 1320.712263][ T8798] CPU: 3 UID: 0 PID: 8798 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1320.712586][ T8798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1320.712858][ T8798] Call Trace: [ 1320.712993][ T8798] <TASK> [ 1320.713085][ T8798] dump_stack_lvl+0xb0/0xd0 [ 1320.713314][ T8798] lockdep_rcu_suspicious+0x1ea/0x280 [ 1320.713617][ T8798] ip6mr_get_table+0x142/0x190 [ 1320.713797][ T8798] ip6_mroute_setsockopt+0x185/0x12d0 [ 1320.713989][ T8798] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1320.714226][ T8798] ? __lock_release+0x103/0x460 [ 1320.714445][ T8798] ? __might_fault+0x11b/0x170 [ 1320.714617][ T8798] ? trace_lock_acquire+0x14d/0x1f0 [ 1320.714793][ T8798] ? __might_fault+0xc3/0x170 [ 1320.714964][ T8798] ? lock_acquire+0x32/0xc0 [ 1320.715134][ T8798] ? __might_fault+0xc3/0x170 [ 1320.715371][ T8798] ? __might_fault+0x11b/0x170 [ 1320.715551][ T8798] do_ipv6_setsockopt+0x705/0x34e0 [ 1320.715786][ T8798] ? __lock_release+0xe0/0x460 [ 1320.715961][ T8798] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1320.716184][ T8798] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1320.716393][ T8798] ? rcu_read_lock_any_held+0x43/0xb0 [ 1320.716625][ T8798] ? validate_chain+0x1fe/0xae0 [ 1320.716799][ T8798] ? is_bpf_text_address+0x67/0x120 [ 1320.717018][ T8798] ? __pfx_validate_chain+0x10/0x10 [ 1320.717225][ T8798] ? hlock_class+0x4e/0x130 [ 1320.717498][ T8798] ? mark_lock+0x38/0x3e0 [ 1320.717651][ T8798] ? rcu_read_lock_any_held+0x43/0xb0 [ 1320.717826][ T8798] ? rcu_read_lock_any_held+0x43/0xb0 [ 1320.718049][ T8798] ? validate_chain+0x1fe/0xae0 [ 1320.718238][ T8798] ? __pfx_validate_chain+0x10/0x10 [ 1320.718450][ T8798] ? hlock_class+0x4e/0x130 [ 1320.718677][ T8798] ? ipv6_setsockopt+0x7f/0xe0 [ 1320.718889][ T8798] ipv6_setsockopt+0x7f/0xe0 [ 1320.719133][ T8798] rawv6_setsockopt+0xb7/0x550 [ 1320.719371][ T8798] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1320.719586][ T8798] ? kfree+0x2d/0x340 [ 1320.719727][ T8798] do_sock_setsockopt+0x149/0x3a0 [ 1320.719904][ T8798] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1320.720113][ T8798] ? __pfx___lock_release+0x10/0x10 [ 1320.720347][ T8798] ? __might_fault+0xc3/0x170 [ 1320.720538][ T8798] ? __might_fault+0xc3/0x170 [ 1320.720716][ T8798] ? lock_acquire+0x32/0xc0 [ 1320.720941][ T8798] ? fdget+0x52/0x1e0 [ 1320.721078][ T8798] __sys_setsockopt+0x104/0x1a0 [ 1320.721346][ T8798] ? __pfx___sys_setsockopt+0x10/0x10 [ 1320.721590][ T8798] ? __pfx___sys_socket+0x10/0x10 [ 1320.721764][ T8798] ? do_user_addr_fault+0x374/0xe30 [ 1320.721987][ T8798] __x64_sys_setsockopt+0xbd/0x160 [ 1320.722208][ T8798] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1320.722494][ T8798] do_syscall_64+0xc1/0x1d0 [ 1320.722692][ T8798] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1320.722887][ T8798] RIP: 0033:0x7f9beeccb91e [ 1320.723056][ T8798] 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 [ 1320.723631][ T8798] RSP: 002b:00007ffc7e234a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1320.723883][ T8798] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9beeccb91e [ 1320.724120][ T8798] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1320.724386][ T8798] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1320.724636][ T8798] R10: 00007ffc7e234a7c R11: 0000000000000246 R12: 0000000000000000 [ 1320.724870][ T8798] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f9beedd0000 [ 1320.725123][ T8798] </TASK> [ 1320.728463][ T8798] veth0: entered allmulticast mode [ 1320.729080][ T8798] veth1: entered allmulticast mode [ 1320.729510][ T8798] veth2: entered allmulticast mode [ 1320.730108][ T8798] veth3: entered allmulticast mode [ 1320.730475][ T8798] veth4: entered allmulticast mode [ 1320.731513][ T8798] veth5: entered allmulticast mode [ 1346.729913][ T8798] veth0: left allmulticast mode [ 1346.730258][ T8798] veth1: left allmulticast mode [ 1346.730512][ T8798] veth2: left allmulticast mode [ 1346.730760][ T8798] veth3: left allmulticast mode [ 1346.731011][ T8798] veth4: left allmulticast mode [ 1346.731297][ T8798] veth5: left allmulticast mode