[ 1722.228379][T13170] [ 1722.228502][T13170] ============================= [ 1722.228655][T13170] WARNING: suspicious RCU usage [ 1722.228823][T13170] 6.12.0-rc6-virtme #1 Not tainted [ 1722.229032][T13170] ----------------------------- [ 1722.229187][T13170] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1722.229706][T13170] [ 1722.229706][T13170] other info that might help us debug this: [ 1722.229706][T13170] [ 1722.230028][T13170] [ 1722.230028][T13170] rcu_scheduler_active = 2, debug_locks = 1 [ 1722.230255][T13170] no locks held by smcrouted/13170. [ 1722.230410][T13170] [ 1722.230410][T13170] stack backtrace: [ 1722.230596][T13170] CPU: 0 UID: 0 PID: 13170 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1722.230862][T13170] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1722.231211][T13170] Call Trace: [ 1722.231332][T13170] [ 1722.231416][T13170] dump_stack_lvl+0xb0/0xd0 [ 1722.231582][T13170] lockdep_rcu_suspicious+0x1ea/0x280 [ 1722.231742][T13170] ip6mr_get_table+0x142/0x190 [ 1722.231900][T13170] ip6_mroute_setsockopt+0x185/0x12d0 [ 1722.232054][T13170] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1722.232259][T13170] ? __lock_release+0x103/0x460 [ 1722.232414][T13170] ? __might_fault+0x11b/0x170 [ 1722.232568][T13170] ? trace_lock_acquire+0x14d/0x1f0 [ 1722.232724][T13170] ? __might_fault+0xc3/0x170 [ 1722.232873][T13170] ? lock_acquire+0x32/0xc0 [ 1722.233028][T13170] ? __might_fault+0xc3/0x170 [ 1722.233177][T13170] ? __might_fault+0x11b/0x170 [ 1722.233333][T13170] do_ipv6_setsockopt+0x705/0x34e0 [ 1722.233489][T13170] ? __lock_release+0xe0/0x460 [ 1722.233653][T13170] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1722.233812][T13170] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1722.233980][T13170] ? rcu_read_lock_any_held+0x43/0xb0 [ 1722.234133][T13170] ? validate_chain+0x1fe/0xae0 [ 1722.234290][T13170] ? is_bpf_text_address+0x67/0x120 [ 1722.234456][T13170] ? __pfx_validate_chain+0x10/0x10 [ 1722.234608][T13170] ? hlock_class+0x4e/0x130 [ 1722.234758][T13170] ? mark_lock+0x38/0x3e0 [ 1722.234879][T13170] ? __lock_acquire+0xb3f/0x1580 [ 1722.235047][T13170] ? find_held_lock+0x2c/0x110 [ 1722.235205][T13170] ? ipv6_setsockopt+0x7f/0xe0 [ 1722.235359][T13170] ipv6_setsockopt+0x7f/0xe0 [ 1722.235583][T13170] rawv6_setsockopt+0xb7/0x550 [ 1722.235807][T13170] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1722.236048][T13170] ? __lock_acquire+0xb3f/0x1580 [ 1722.236238][T13170] ? kfree+0x2d/0x340 [ 1722.236419][T13170] do_sock_setsockopt+0x149/0x3a0 [ 1722.236658][T13170] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1722.236870][T13170] ? __lock_release+0x103/0x460 [ 1722.237074][T13170] ? fd_install+0x1d1/0x5a0 [ 1722.237321][T13170] ? trace_lock_acquire+0x14d/0x1f0 [ 1722.237566][T13170] ? fdget+0x52/0x1e0 [ 1722.237767][T13170] __sys_setsockopt+0x104/0x1a0 [ 1722.238029][T13170] ? __pfx___sys_setsockopt+0x10/0x10 [ 1722.238226][T13170] ? __sys_socket+0x168/0x1e0 [ 1722.238470][T13170] ? __pfx___sys_socket+0x10/0x10 [ 1722.238729][T13170] __x64_sys_setsockopt+0xbd/0x160 [ 1722.238954][T13170] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1722.239252][T13170] do_syscall_64+0xc1/0x1d0 [ 1722.239513][T13170] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1722.239870][T13170] RIP: 0033:0x7f8aa6b6791e [ 1722.240126][T13170] 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 [ 1722.240975][T13170] RSP: 002b:00007ffdb75b45d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1722.241341][T13170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8aa6b6791e [ 1722.241704][T13170] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1722.242070][T13170] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1722.242451][T13170] R10: 00007ffdb75b45fc R11: 0000000000000246 R12: 0000000000000000 [ 1722.242831][T13170] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f8aa6c6c000 [ 1722.243234][T13170] [ 1722.258965][T13170] veth0: entered allmulticast mode [ 1722.259559][T13170] veth1: entered allmulticast mode [ 1722.259898][T13170] veth2: entered allmulticast mode [ 1722.260241][T13170] veth3: entered allmulticast mode [ 1722.260589][T13170] veth4: entered allmulticast mode [ 1722.260913][T13170] veth5: entered allmulticast mode [ 1769.358597][T13170] veth0: left allmulticast mode [ 1769.358904][T13170] veth1: left allmulticast mode [ 1769.359172][T13170] veth2: left allmulticast mode [ 1769.359422][T13170] veth3: left allmulticast mode [ 1769.359674][T13170] veth4: left allmulticast mode [ 1769.359918][T13170] veth5: left allmulticast mode