[ 1264.876005][ T4455] [ 1264.876167][ T4455] ============================= [ 1264.876380][ T4455] WARNING: suspicious RCU usage [ 1264.876588][ T4455] 6.12.0-rc7-virtme #1 Not tainted [ 1264.876780][ T4455] ----------------------------- [ 1264.876970][ T4455] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1264.877263][ T4455] [ 1264.877263][ T4455] other info that might help us debug this: [ 1264.877263][ T4455] [ 1264.877848][ T4455] [ 1264.877848][ T4455] rcu_scheduler_active = 2, debug_locks = 1 [ 1264.878133][ T4455] no locks held by smcrouted/4455. [ 1264.878328][ T4455] [ 1264.878328][ T4455] stack backtrace: [ 1264.878574][ T4455] CPU: 0 UID: 0 PID: 4455 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1264.878912][ T4455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1264.879153][ T4455] Call Trace: [ 1264.879302][ T4455] <TASK> [ 1264.879410][ T4455] dump_stack_lvl+0xb0/0xd0 [ 1264.879615][ T4455] lockdep_rcu_suspicious+0x1ea/0x280 [ 1264.879807][ T4455] ip6mr_get_table+0x142/0x190 [ 1264.880004][ T4455] ip6_mroute_setsockopt+0x185/0x12d0 [ 1264.880196][ T4455] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1264.880439][ T4455] ? __lock_release+0x103/0x460 [ 1264.880628][ T4455] ? __might_fault+0x11b/0x170 [ 1264.880824][ T4455] ? trace_lock_acquire+0x14d/0x1f0 [ 1264.881021][ T4455] ? __might_fault+0xc3/0x170 [ 1264.881250][ T4455] ? lock_acquire+0x32/0xc0 [ 1264.881440][ T4455] ? __might_fault+0xc3/0x170 [ 1264.881625][ T4455] ? __might_fault+0x11b/0x170 [ 1264.881830][ T4455] do_ipv6_setsockopt+0x705/0x34e0 [ 1264.882029][ T4455] ? __lock_release+0x10/0x460 [ 1264.882220][ T4455] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1264.882422][ T4455] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1264.882683][ T4455] ? rcu_read_lock_any_held+0x43/0xb0 [ 1264.882963][ T4455] ? validate_chain+0x1fe/0xae0 [ 1264.883247][ T4455] ? is_bpf_text_address+0x67/0x120 [ 1264.883528][ T4455] ? __pfx_validate_chain+0x10/0x10 [ 1264.883809][ T4455] ? hlock_class+0x4e/0x130 [ 1264.884093][ T4455] ? mark_lock+0x38/0x3e0 [ 1264.884315][ T4455] ? __lock_acquire+0xb3f/0x1580 [ 1264.884598][ T4455] ? find_held_lock+0x2c/0x110 [ 1264.884904][ T4455] ? ipv6_setsockopt+0x7f/0xe0 [ 1264.885162][ T4455] ipv6_setsockopt+0x7f/0xe0 [ 1264.885419][ T4455] rawv6_setsockopt+0xb7/0x550 [ 1264.885700][ T4455] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1264.885983][ T4455] ? __lock_acquire+0xb3f/0x1580 [ 1264.886278][ T4455] ? kfree+0x2d/0x340 [ 1264.886509][ T4455] do_sock_setsockopt+0x149/0x3a0 [ 1264.886806][ T4455] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1264.887102][ T4455] ? __lock_release+0x103/0x460 [ 1264.887426][ T4455] ? fd_install+0x1d1/0x5a0 [ 1264.887745][ T4455] ? trace_lock_acquire+0x14d/0x1f0 [ 1264.888057][ T4455] ? fdget+0x52/0x1e0 [ 1264.888294][ T4455] __sys_setsockopt+0x104/0x1a0 [ 1264.888607][ T4455] ? __pfx___sys_setsockopt+0x10/0x10 [ 1264.888899][ T4455] ? __sys_socket+0x168/0x1e0 [ 1264.889199][ T4455] ? __pfx___sys_socket+0x10/0x10 [ 1264.889499][ T4455] ? do_user_addr_fault+0x374/0xe30 [ 1264.889798][ T4455] __x64_sys_setsockopt+0xbd/0x160 [ 1264.890089][ T4455] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1264.890446][ T4455] do_syscall_64+0xc1/0x1d0 [ 1264.890742][ T4455] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1264.891094][ T4455] RIP: 0033:0x7fe6434e891e [ 1264.891364][ T4455] 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 [ 1264.892045][ T4455] RSP: 002b:00007ffffddb2658 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1264.892356][ T4455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe6434e891e [ 1264.892646][ T4455] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1264.892933][ T4455] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000000a52a010 [ 1264.893221][ T4455] R10: 00007ffffddb267c R11: 0000000000000246 R12: 0000000000000000 [ 1264.893499][ T4455] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fe6435ed000 [ 1264.893801][ T4455] </TASK> [ 1264.897567][ T4455] veth0: entered allmulticast mode [ 1264.898442][ T4455] veth1: entered allmulticast mode [ 1264.919179][ T4455] veth2: entered allmulticast mode [ 1264.920654][ T4455] veth3: entered allmulticast mode [ 1264.921276][ T4455] veth4: entered allmulticast mode [ 1264.921881][ T4455] veth5: entered allmulticast mode [ 1275.806105][ T4541] GACT probability NOT on [ 1292.743030][ T4455] veth0: left allmulticast mode [ 1292.743475][ T4455] veth1: left allmulticast mode [ 1292.743734][ T4455] veth2: left allmulticast mode [ 1292.744027][ T4455] veth3: left allmulticast mode [ 1292.744265][ T4455] veth4: left allmulticast mode [ 1292.744536][ T4455] veth5: left allmulticast mode