[ 1259.290855][ T4455] [ 1259.291007][ T4455] ============================= [ 1259.291257][ T4455] WARNING: suspicious RCU usage [ 1259.291506][ T4455] 6.12.0-rc7-virtme #1 Not tainted [ 1259.292265][ T4455] ----------------------------- [ 1259.292499][ T4455] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1259.292881][ T4455] [ 1259.292881][ T4455] other info that might help us debug this: [ 1259.292881][ T4455] [ 1259.293356][ T4455] [ 1259.293356][ T4455] rcu_scheduler_active = 2, debug_locks = 1 [ 1259.293734][ T4455] no locks held by smcrouted/4455. [ 1259.293988][ T4455] [ 1259.293988][ T4455] stack backtrace: [ 1259.294295][ T4455] CPU: 3 UID: 0 PID: 4455 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1259.294734][ T4455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1259.295041][ T4455] Call Trace: [ 1259.295233][ T4455] [ 1259.295370][ T4455] dump_stack_lvl+0xb0/0xd0 [ 1259.295632][ T4455] lockdep_rcu_suspicious+0x1ea/0x280 [ 1259.295895][ T4455] ip6mr_get_table+0x142/0x190 [ 1259.296150][ T4455] ip6_mroute_setsockopt+0x185/0x12d0 [ 1259.296412][ T4455] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1259.296741][ T4455] ? __lock_release+0x103/0x460 [ 1259.296995][ T4455] ? __might_fault+0x11b/0x170 [ 1259.297248][ T4455] ? trace_lock_acquire+0x14d/0x1f0 [ 1259.297506][ T4455] ? __might_fault+0xc3/0x170 [ 1259.297751][ T4455] ? lock_acquire+0x32/0xc0 [ 1259.298003][ T4455] ? __might_fault+0xc3/0x170 [ 1259.298259][ T4455] ? __might_fault+0x11b/0x170 [ 1259.298521][ T4455] do_ipv6_setsockopt+0x705/0x34e0 [ 1259.298775][ T4455] ? __lock_release+0x10/0x460 [ 1259.299030][ T4455] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1259.299279][ T4455] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1259.299534][ T4455] ? rcu_read_lock_any_held+0x43/0xb0 [ 1259.299794][ T4455] ? validate_chain+0x1fe/0xae0 [ 1259.300045][ T4455] ? is_bpf_text_address+0x67/0x120 [ 1259.300310][ T4455] ? __pfx_validate_chain+0x10/0x10 [ 1259.300568][ T4455] ? hlock_class+0x4e/0x130 [ 1259.300837][ T4455] ? mark_lock+0x38/0x3e0 [ 1259.301062][ T4455] ? __lock_acquire+0xb3f/0x1580 [ 1259.301341][ T4455] ? find_held_lock+0x2c/0x110 [ 1259.301610][ T4455] ? ipv6_setsockopt+0x7f/0xe0 [ 1259.301858][ T4455] ipv6_setsockopt+0x7f/0xe0 [ 1259.302112][ T4455] rawv6_setsockopt+0xb7/0x550 [ 1259.302370][ T4455] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1259.302628][ T4455] ? kfree+0x2d/0x340 [ 1259.302838][ T4455] do_sock_setsockopt+0x149/0x3a0 [ 1259.303093][ T4455] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1259.303342][ T4455] ? __lock_release+0x103/0x460 [ 1259.303603][ T4455] ? fd_install+0x1d1/0x5a0 [ 1259.303876][ T4455] ? trace_lock_acquire+0x14d/0x1f0 [ 1259.304143][ T4455] ? fdget+0x52/0x1e0 [ 1259.304347][ T4455] __sys_setsockopt+0x104/0x1a0 [ 1259.304613][ T4455] ? __pfx___sys_setsockopt+0x10/0x10 [ 1259.304879][ T4455] ? __sys_socket+0x168/0x1e0 [ 1259.305150][ T4455] ? __pfx___sys_socket+0x10/0x10 [ 1259.305418][ T4455] ? do_user_addr_fault+0x97c/0xe30 [ 1259.305688][ T4455] __x64_sys_setsockopt+0xbd/0x160 [ 1259.305958][ T4455] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1259.306285][ T4455] do_syscall_64+0xc1/0x1d0 [ 1259.306555][ T4455] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1259.306860][ T4455] RIP: 0033:0x7f783688891e [ 1259.307221][ 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 [ 1259.308108][ T4455] RSP: 002b:00007ffc545e5938 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1259.308487][ T4455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f783688891e [ 1259.308862][ T4455] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1259.309246][ T4455] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000001276a010 [ 1259.309619][ T4455] R10: 00007ffc545e595c R11: 0000000000000246 R12: 0000000000000000 [ 1259.310004][ T4455] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f783698d000 [ 1259.310430][ T4455] [ 1259.315268][ T4455] veth0: entered allmulticast mode [ 1259.315922][ T4455] veth1: entered allmulticast mode [ 1259.316339][ T4455] veth2: entered allmulticast mode [ 1259.318107][ T4455] veth3: entered allmulticast mode [ 1259.318525][ T4455] veth4: entered allmulticast mode [ 1259.318940][ T4455] veth5: entered allmulticast mode [ 1269.937838][ T4541] GACT probability NOT on [ 1285.232964][ T4455] veth0: left allmulticast mode [ 1285.233289][ T4455] veth1: left allmulticast mode [ 1285.233534][ T4455] veth2: left allmulticast mode [ 1285.234212][ T4455] veth3: left allmulticast mode [ 1285.234475][ T4455] veth4: left allmulticast mode [ 1285.234719][ T4455] veth5: left allmulticast mode