[ 1259.367877][ T4457] [ 1259.368007][ T4457] ============================= [ 1259.368174][ T4457] WARNING: suspicious RCU usage [ 1259.368335][ T4457] 6.12.0-rc7-virtme #1 Not tainted [ 1259.368496][ T4457] ----------------------------- [ 1259.368673][ T4457] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1259.368904][ T4457] [ 1259.368904][ T4457] other info that might help us debug this: [ 1259.368904][ T4457] [ 1259.369217][ T4457] [ 1259.369217][ T4457] rcu_scheduler_active = 2, debug_locks = 1 [ 1259.369448][ T4457] no locks held by smcrouted/4457. [ 1259.369609][ T4457] [ 1259.369609][ T4457] stack backtrace: [ 1259.369814][ T4457] CPU: 3 UID: 0 PID: 4457 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1259.370090][ T4457] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1259.370286][ T4457] Call Trace: [ 1259.370409][ T4457] [ 1259.370494][ T4457] dump_stack_lvl+0xb0/0xd0 [ 1259.370663][ T4457] lockdep_rcu_suspicious+0x1ea/0x280 [ 1259.370832][ T4457] ip6mr_get_table+0x142/0x190 [ 1259.370996][ T4457] ip6_mroute_setsockopt+0x185/0x12d0 [ 1259.371155][ T4457] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1259.371357][ T4457] ? __lock_release+0x103/0x460 [ 1259.371516][ T4457] ? __might_fault+0x11b/0x170 [ 1259.371678][ T4457] ? trace_lock_acquire+0x14d/0x1f0 [ 1259.371840][ T4457] ? __might_fault+0xc3/0x170 [ 1259.371996][ T4457] ? lock_acquire+0x32/0xc0 [ 1259.372153][ T4457] ? __might_fault+0xc3/0x170 [ 1259.372310][ T4457] ? __might_fault+0x11b/0x170 [ 1259.372470][ T4457] do_ipv6_setsockopt+0x705/0x34e0 [ 1259.372635][ T4457] ? __lock_release+0x10/0x460 [ 1259.372792][ T4457] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1259.372947][ T4457] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1259.373106][ T4457] ? rcu_read_lock_any_held+0x43/0xb0 [ 1259.373265][ T4457] ? validate_chain+0x1fe/0xae0 [ 1259.373425][ T4457] ? is_bpf_text_address+0x67/0x120 [ 1259.373589][ T4457] ? __pfx_validate_chain+0x10/0x10 [ 1259.373750][ T4457] ? hlock_class+0x4e/0x130 [ 1259.373909][ T4457] ? mark_lock+0x38/0x3e0 [ 1259.374037][ T4457] ? __lock_acquire+0xb3f/0x1580 [ 1259.374203][ T4457] ? find_held_lock+0x2c/0x110 [ 1259.374367][ T4457] ? ipv6_setsockopt+0x7f/0xe0 [ 1259.374522][ T4457] ipv6_setsockopt+0x7f/0xe0 [ 1259.374697][ T4457] rawv6_setsockopt+0xb7/0x550 [ 1259.374855][ T4457] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1259.375009][ T4457] ? __lock_acquire+0xb3f/0x1580 [ 1259.375167][ T4457] ? kfree+0x2d/0x340 [ 1259.375293][ T4457] do_sock_setsockopt+0x149/0x3a0 [ 1259.375451][ T4457] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1259.375614][ T4457] ? __lock_release+0x103/0x460 [ 1259.375777][ T4457] ? fd_install+0x1d1/0x5a0 [ 1259.375938][ T4457] ? trace_lock_acquire+0x14d/0x1f0 [ 1259.376099][ T4457] ? fdget+0x52/0x1e0 [ 1259.376222][ T4457] __sys_setsockopt+0x104/0x1a0 [ 1259.376381][ T4457] ? __pfx___sys_setsockopt+0x10/0x10 [ 1259.376540][ T4457] ? __sys_socket+0x168/0x1e0 [ 1259.376697][ T4457] ? __pfx___sys_socket+0x10/0x10 [ 1259.376855][ T4457] ? do_user_addr_fault+0x97c/0xe30 [ 1259.377022][ T4457] __x64_sys_setsockopt+0xbd/0x160 [ 1259.377181][ T4457] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1259.377378][ T4457] do_syscall_64+0xc1/0x1d0 [ 1259.377539][ T4457] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1259.377738][ T4457] RIP: 0033:0x7f3dc420a91e [ 1259.377907][ T4457] 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 [ 1259.378457][ T4457] RSP: 002b:00007ffe64cdc828 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1259.378701][ T4457] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3dc420a91e [ 1259.378949][ T4457] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1259.379186][ T4457] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000001cb0010 [ 1259.379419][ T4457] R10: 00007ffe64cdc84c R11: 0000000000000246 R12: 0000000000000000 [ 1259.379654][ T4457] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f3dc430f000 [ 1259.379898][ T4457] [ 1259.383592][ T4457] veth0: entered allmulticast mode [ 1259.384116][ T4457] veth1: entered allmulticast mode [ 1259.384445][ T4457] veth2: entered allmulticast mode [ 1259.384789][ T4457] veth3: entered allmulticast mode [ 1259.385130][ T4457] veth4: entered allmulticast mode [ 1259.385455][ T4457] veth5: entered allmulticast mode [ 1269.825879][ T4543] GACT probability NOT on [ 1285.521220][ T4457] veth0: left allmulticast mode [ 1285.521718][ T4457] veth1: left allmulticast mode [ 1285.522036][ T4457] veth2: left allmulticast mode [ 1285.522407][ T4457] veth3: left allmulticast mode [ 1285.523788][ T4457] veth4: left allmulticast mode [ 1285.524076][ T4457] veth5: left allmulticast mode