[ 1267.429795][ T4459] [ 1267.429965][ T4459] ============================= [ 1267.430148][ T4459] WARNING: suspicious RCU usage [ 1267.430320][ T4459] 6.12.0-rc7-virtme #1 Not tainted [ 1267.430501][ T4459] ----------------------------- [ 1267.430676][ T4459] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1267.430934][ T4459] [ 1267.430934][ T4459] other info that might help us debug this: [ 1267.430934][ T4459] [ 1267.431282][ T4459] [ 1267.431282][ T4459] rcu_scheduler_active = 2, debug_locks = 1 [ 1267.431538][ T4459] no locks held by smcrouted/4459. [ 1267.431708][ T4459] [ 1267.431708][ T4459] stack backtrace: [ 1267.431923][ T4459] CPU: 3 UID: 0 PID: 4459 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1267.432230][ T4459] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1267.432445][ T4459] Call Trace: [ 1267.432578][ T4459] [ 1267.432671][ T4459] dump_stack_lvl+0xb0/0xd0 [ 1267.432858][ T4459] lockdep_rcu_suspicious+0x1ea/0x280 [ 1267.433042][ T4459] ip6mr_get_table+0x142/0x190 [ 1267.433222][ T4459] ip6_mroute_setsockopt+0x185/0x12d0 [ 1267.433396][ T4459] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1267.433620][ T4459] ? __lock_release+0x103/0x460 [ 1267.433795][ T4459] ? __might_fault+0x11b/0x170 [ 1267.433969][ T4459] ? trace_lock_acquire+0x14d/0x1f0 [ 1267.434148][ T4459] ? __might_fault+0xc3/0x170 [ 1267.434326][ T4459] ? lock_acquire+0x32/0xc0 [ 1267.434497][ T4459] ? __might_fault+0xc3/0x170 [ 1267.434658][ T4459] ? __might_fault+0x11b/0x170 [ 1267.434828][ T4459] do_ipv6_setsockopt+0x705/0x34e0 [ 1267.434989][ T4459] ? __lock_release+0x10/0x460 [ 1267.435158][ T4459] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1267.435328][ T4459] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1267.435514][ T4459] ? rcu_read_lock_any_held+0x43/0xb0 [ 1267.435680][ T4459] ? validate_chain+0x1fe/0xae0 [ 1267.435873][ T4459] ? is_bpf_text_address+0x67/0x120 [ 1267.436063][ T4459] ? __pfx_validate_chain+0x10/0x10 [ 1267.436244][ T4459] ? hlock_class+0x4e/0x130 [ 1267.436415][ T4459] ? mark_lock+0x38/0x3e0 [ 1267.436548][ T4459] ? __lock_acquire+0xb3f/0x1580 [ 1267.436725][ T4459] ? find_held_lock+0x2c/0x110 [ 1267.436894][ T4459] ? ipv6_setsockopt+0x7f/0xe0 [ 1267.437054][ T4459] ipv6_setsockopt+0x7f/0xe0 [ 1267.437216][ T4459] rawv6_setsockopt+0xb7/0x550 [ 1267.437383][ T4459] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1267.437549][ T4459] ? __lock_acquire+0xb3f/0x1580 [ 1267.437718][ T4459] ? kfree+0x2d/0x340 [ 1267.437847][ T4459] do_sock_setsockopt+0x149/0x3a0 [ 1267.438011][ T4459] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1267.438177][ T4459] ? __lock_release+0x103/0x460 [ 1267.438346][ T4459] ? fd_install+0x1d1/0x5a0 [ 1267.438512][ T4459] ? trace_lock_acquire+0x14d/0x1f0 [ 1267.438673][ T4459] ? fdget+0x52/0x1e0 [ 1267.438815][ T4459] __sys_setsockopt+0x104/0x1a0 [ 1267.438992][ T4459] ? __pfx___sys_setsockopt+0x10/0x10 [ 1267.439155][ T4459] ? __sys_socket+0x168/0x1e0 [ 1267.439337][ T4459] ? __pfx___sys_socket+0x10/0x10 [ 1267.439511][ T4459] ? do_user_addr_fault+0x374/0xe30 [ 1267.439690][ T4459] __x64_sys_setsockopt+0xbd/0x160 [ 1267.439860][ T4459] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1267.440070][ T4459] do_syscall_64+0xc1/0x1d0 [ 1267.440246][ T4459] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1267.440464][ T4459] RIP: 0033:0x7f0dc4b4d91e [ 1267.440643][ T4459] 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 [ 1267.441238][ T4459] RSP: 002b:00007ffe0c39c0e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1267.441497][ T4459] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0dc4b4d91e [ 1267.441756][ T4459] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1267.442016][ T4459] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000017eb7010 [ 1267.442272][ T4459] R10: 00007ffe0c39c10c R11: 0000000000000246 R12: 0000000000000000 [ 1267.442532][ T4459] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f0dc4c52000 [ 1267.442800][ T4459] [ 1267.445593][ T4459] veth0: entered allmulticast mode [ 1267.446166][ T4459] veth1: entered allmulticast mode [ 1267.446495][ T4459] veth2: entered allmulticast mode [ 1267.446813][ T4459] veth3: entered allmulticast mode [ 1267.447150][ T4459] veth4: entered allmulticast mode [ 1267.447462][ T4459] veth5: entered allmulticast mode [ 1278.752213][ T4545] GACT probability NOT on [ 1295.679458][ T4459] veth0: left allmulticast mode [ 1295.679782][ T4459] veth1: left allmulticast mode [ 1295.680041][ T4459] veth2: left allmulticast mode [ 1295.680271][ T4459] veth3: left allmulticast mode [ 1295.680507][ T4459] veth4: left allmulticast mode [ 1295.680769][ T4459] veth5: left allmulticast mode