[ 1706.200833][ T7109] [ 1706.200957][ T7109] ============================= [ 1706.201148][ T7109] WARNING: suspicious RCU usage [ 1706.201316][ T7109] 6.12.0-rc6-virtme #1 Not tainted [ 1706.201481][ T7109] ----------------------------- [ 1706.201644][ T7109] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1706.201895][ T7109] [ 1706.201895][ T7109] other info that might help us debug this: [ 1706.201895][ T7109] [ 1706.203131][ T7109] [ 1706.203131][ T7109] rcu_scheduler_active = 2, debug_locks = 1 [ 1706.203372][ T7109] no locks held by smcrouted/7109. [ 1706.203575][ T7109] [ 1706.203575][ T7109] stack backtrace: [ 1706.203783][ T7109] CPU: 2 UID: 0 PID: 7109 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1706.204088][ T7109] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1706.204447][ T7109] Call Trace: [ 1706.204573][ T7109] [ 1706.204663][ T7109] dump_stack_lvl+0xb0/0xd0 [ 1706.204839][ T7109] lockdep_rcu_suspicious+0x1ea/0x280 [ 1706.205012][ T7109] ip6mr_get_table+0x142/0x190 [ 1706.205180][ T7109] ip6_mroute_setsockopt+0x185/0x12d0 [ 1706.205348][ T7109] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1706.205564][ T7109] ? __lock_release+0x103/0x460 [ 1706.205722][ T7109] ? __might_fault+0x11b/0x170 [ 1706.205883][ T7109] ? trace_lock_acquire+0x14d/0x1f0 [ 1706.206079][ T7109] ? __might_fault+0xc3/0x170 [ 1706.206236][ T7109] ? lock_acquire+0x32/0xc0 [ 1706.206396][ T7109] ? __might_fault+0xc3/0x170 [ 1706.206560][ T7109] ? __might_fault+0x11b/0x170 [ 1706.206728][ T7109] do_ipv6_setsockopt+0x705/0x34e0 [ 1706.206894][ T7109] ? __lock_release+0xe0/0x460 [ 1706.207058][ T7109] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1706.207215][ T7109] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1706.207377][ T7109] ? rcu_read_lock_any_held+0x43/0xb0 [ 1706.207540][ T7109] ? rcu_read_lock_any_held+0x43/0xb0 [ 1706.207700][ T7109] ? validate_chain+0x1fe/0xae0 [ 1706.207862][ T7109] ? __pfx_validate_chain+0x10/0x10 [ 1706.208040][ T7109] ? hlock_class+0x4e/0x130 [ 1706.208202][ T7109] ? __pfx_validate_chain+0x10/0x10 [ 1706.208361][ T7109] ? hlock_class+0x4e/0x130 [ 1706.208529][ T7109] ? mark_lock+0x38/0x3e0 [ 1706.208724][ T7109] ? __lock_acquire+0xb3f/0x1580 [ 1706.208986][ T7109] ? ipv6_setsockopt+0x7f/0xe0 [ 1706.209231][ T7109] ipv6_setsockopt+0x7f/0xe0 [ 1706.209484][ T7109] rawv6_setsockopt+0xb7/0x550 [ 1706.209676][ T7109] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1706.209924][ T7109] ? __lock_acquire+0xb3f/0x1580 [ 1706.210162][ T7109] ? kfree+0x2d/0x340 [ 1706.210373][ T7109] do_sock_setsockopt+0x149/0x3a0 [ 1706.210629][ T7109] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1706.210882][ T7109] ? __lock_release+0x103/0x460 [ 1706.211136][ T7109] ? fd_install+0x1d1/0x5a0 [ 1706.211404][ T7109] ? trace_lock_acquire+0x14d/0x1f0 [ 1706.211676][ T7109] ? fdget+0x52/0x1e0 [ 1706.211875][ T7109] __sys_setsockopt+0x104/0x1a0 [ 1706.212122][ T7109] ? __pfx___sys_setsockopt+0x10/0x10 [ 1706.212371][ T7109] ? __sys_socket+0x168/0x1e0 [ 1706.212615][ T7109] ? __pfx___sys_socket+0x10/0x10 [ 1706.212871][ T7109] __x64_sys_setsockopt+0xbd/0x160 [ 1706.213117][ T7109] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1706.213423][ T7109] do_syscall_64+0xc1/0x1d0 [ 1706.213681][ T7109] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1706.214014][ T7109] RIP: 0033:0x7f665a2d691e [ 1706.214282][ T7109] 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 [ 1706.215132][ T7109] RSP: 002b:00007ffc893b1448 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1706.215546][ T7109] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f665a2d691e [ 1706.215927][ T7109] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1706.216294][ T7109] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1706.216662][ T7109] R10: 00007ffc893b146c R11: 0000000000000246 R12: 0000000000000000 [ 1706.217036][ T7109] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f665a3db000 [ 1706.217426][ T7109] [ 1706.227914][ T7109] veth0: entered allmulticast mode [ 1706.228735][ T7109] veth1: entered allmulticast mode [ 1706.229268][ T7109] veth2: entered allmulticast mode [ 1706.229772][ T7109] veth3: entered allmulticast mode [ 1706.230294][ T7109] veth4: entered allmulticast mode [ 1706.230787][ T7109] veth5: entered allmulticast mode [ 1753.800789][ T7109] veth0: left allmulticast mode [ 1753.801141][ T7109] veth1: left allmulticast mode [ 1753.801397][ T7109] veth2: left allmulticast mode [ 1753.801640][ T7109] veth3: left allmulticast mode [ 1753.801912][ T7109] veth4: left allmulticast mode [ 1753.802177][ T7109] veth5: left allmulticast mode