[ 108.913635][ T766] [ 108.913751][ T766] ============================= [ 108.913911][ T766] WARNING: suspicious RCU usage [ 108.914090][ T766] 6.12.0-rc6-virtme #1 Not tainted [ 108.914252][ T766] ----------------------------- [ 108.915161][ T766] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 108.915495][ T766] [ 108.915495][ T766] other info that might help us debug this: [ 108.915495][ T766] [ 108.915815][ T766] [ 108.915815][ T766] rcu_scheduler_active = 2, debug_locks = 1 [ 108.916075][ T766] no locks held by smcrouted/766. [ 108.916240][ T766] [ 108.916240][ T766] stack backtrace: [ 108.916445][ T766] CPU: 2 UID: 0 PID: 766 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 108.916695][ T766] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 108.917034][ T766] Call Trace: [ 108.917155][ T766] [ 108.917236][ T766] dump_stack_lvl+0xb0/0xd0 [ 108.917401][ T766] lockdep_rcu_suspicious+0x1ea/0x280 [ 108.917555][ T766] ip6mr_get_table+0x142/0x190 [ 108.917709][ T766] ip6_mroute_setsockopt+0x185/0x12d0 [ 108.917863][ T766] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 108.918055][ T766] ? __lock_release+0x103/0x460 [ 108.918212][ T766] ? __might_fault+0x11b/0x170 [ 108.918366][ T766] ? trace_lock_acquire+0x14d/0x1f0 [ 108.918518][ T766] ? __might_fault+0xc3/0x170 [ 108.918669][ T766] ? lock_acquire+0x32/0xc0 [ 108.918816][ T766] ? __might_fault+0xc3/0x170 [ 108.918967][ T766] ? __might_fault+0x11b/0x170 [ 108.919123][ T766] do_ipv6_setsockopt+0x705/0x34e0 [ 108.919275][ T766] ? __lock_release+0xe0/0x460 [ 108.919425][ T766] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 108.919573][ T766] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 108.919727][ T766] ? rcu_read_lock_any_held+0x43/0xb0 [ 108.919877][ T766] ? validate_chain+0x1fe/0xae0 [ 108.920026][ T766] ? is_bpf_text_address+0x67/0x120 [ 108.920181][ T766] ? __pfx_validate_chain+0x10/0x10 [ 108.920330][ T766] ? hlock_class+0x4e/0x130 [ 108.920478][ T766] ? mark_lock+0x38/0x3e0 [ 108.920596][ T766] ? __lock_acquire+0xb3f/0x1580 [ 108.920754][ T766] ? find_held_lock+0x2c/0x110 [ 108.920941][ T766] ? ipv6_setsockopt+0x7f/0xe0 [ 108.921102][ T766] ipv6_setsockopt+0x7f/0xe0 [ 108.921271][ T766] rawv6_setsockopt+0xb7/0x550 [ 108.921435][ T766] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 108.921593][ T766] ? __lock_acquire+0xb3f/0x1580 [ 108.921757][ T766] ? kfree+0x2d/0x340 [ 108.921892][ T766] do_sock_setsockopt+0x149/0x3a0 [ 108.922042][ T766] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 108.922190][ T766] ? __lock_release+0x103/0x460 [ 108.922339][ T766] ? fd_install+0x1d1/0x5a0 [ 108.922496][ T766] ? trace_lock_acquire+0x14d/0x1f0 [ 108.922647][ T766] ? fdget+0x52/0x1e0 [ 108.922764][ T766] __sys_setsockopt+0x104/0x1a0 [ 108.922917][ T766] ? __pfx___sys_setsockopt+0x10/0x10 [ 108.923087][ T766] ? __sys_socket+0x168/0x1e0 [ 108.923236][ T766] ? __pfx___sys_socket+0x10/0x10 [ 108.923391][ T766] __x64_sys_setsockopt+0xbd/0x160 [ 108.923540][ T766] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 108.923728][ T766] do_syscall_64+0xc1/0x1d0 [ 108.923880][ T766] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.924063][ T766] RIP: 0033:0x7f7b7f09091e [ 108.924219][ T766] 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 [ 108.924734][ T766] RSP: 002b:00007ffc3496b578 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 108.924972][ T766] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7b7f09091e [ 108.925200][ T766] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 108.925425][ T766] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 108.925652][ T766] R10: 00007ffc3496b59c R11: 0000000000000246 R12: 0000000000000000 [ 108.925874][ T766] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f7b7f195000 [ 108.926115][ T766] [ 108.935722][ T766] veth0: entered allmulticast mode [ 108.937240][ T766] veth1: entered allmulticast mode [ 108.937791][ T766] veth2: entered allmulticast mode [ 108.938353][ T766] veth3: entered allmulticast mode [ 108.938875][ T766] veth4: entered allmulticast mode [ 108.947217][ T766] veth5: entered allmulticast mode [ 155.894468][ T766] veth0: left allmulticast mode [ 155.894774][ T766] veth1: left allmulticast mode [ 155.894996][ T766] veth2: left allmulticast mode [ 155.895215][ T766] veth3: left allmulticast mode [ 155.895472][ T766] veth4: left allmulticast mode [ 155.895692][ T766] veth5: left allmulticast mode