[ 10.463256][ T250] ip (250) used greatest stack depth: 24672 bytes left [ 11.607708][ T281] [ 11.607915][ T281] ============================= [ 11.608122][ T281] WARNING: suspicious RCU usage [ 11.608347][ T281] 6.12.0-rc7-virtme #1 Not tainted [ 11.608588][ T281] ----------------------------- [ 11.608792][ T281] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 11.609086][ T281] [ 11.609086][ T281] other info that might help us debug this: [ 11.609086][ T281] [ 11.609472][ T281] [ 11.609472][ T281] rcu_scheduler_active = 2, debug_locks = 1 [ 11.609761][ T281] no locks held by smcrouted/281. [ 11.609953][ T281] [ 11.609953][ T281] stack backtrace: [ 11.610189][ T281] CPU: 2 UID: 0 PID: 281 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 11.610481][ T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.610708][ T281] Call Trace: [ 11.610846][ T281] [ 11.610954][ T281] dump_stack_lvl+0xb0/0xd0 [ 11.611144][ T281] lockdep_rcu_suspicious+0x1ea/0x280 [ 11.611325][ T281] ip6mr_get_table+0x142/0x190 [ 11.611506][ T281] ip6_mroute_setsockopt+0x185/0x12d0 [ 11.611691][ T281] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 11.611927][ T281] ? __lock_release+0x103/0x460 [ 11.612100][ T281] ? __might_fault+0x11b/0x170 [ 11.612272][ T281] ? trace_lock_acquire+0x14d/0x1f0 [ 11.612483][ T281] ? __might_fault+0xc3/0x170 [ 11.612673][ T281] ? lock_acquire+0x32/0xc0 [ 11.612849][ T281] ? __might_fault+0xc3/0x170 [ 11.613034][ T281] ? __might_fault+0x11b/0x170 [ 11.613229][ T281] do_ipv6_setsockopt+0x705/0x34e0 [ 11.613428][ T281] ? __lock_release+0x10/0x460 [ 11.613614][ T281] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 11.613788][ T281] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.613987][ T281] ? rcu_read_lock_any_held+0x43/0xb0 [ 11.614160][ T281] ? validate_chain+0x1fe/0xae0 [ 11.614336][ T281] ? is_bpf_text_address+0x67/0x120 [ 11.614534][ T281] ? __pfx_validate_chain+0x10/0x10 [ 11.614716][ T281] ? hlock_class+0x4e/0x130 [ 11.614902][ T281] ? mark_lock+0x38/0x3e0 [ 11.615042][ T281] ? __lock_acquire+0xb3f/0x1580 [ 11.615226][ T281] ? find_held_lock+0x2c/0x110 [ 11.615427][ T281] ? ipv6_setsockopt+0x7f/0xe0 [ 11.615599][ T281] ipv6_setsockopt+0x7f/0xe0 [ 11.615775][ T281] rawv6_setsockopt+0xb7/0x550 [ 11.615952][ T281] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 11.616146][ T281] ? __lock_acquire+0xb3f/0x1580 [ 11.616323][ T281] ? kfree+0x2d/0x340 [ 11.616464][ T281] do_sock_setsockopt+0x149/0x3a0 [ 11.616642][ T281] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 11.616814][ T281] ? __lock_release+0x103/0x460 [ 11.616984][ T281] ? fd_install+0x1d1/0x5a0 [ 11.617165][ T281] ? trace_lock_acquire+0x14d/0x1f0 [ 11.617352][ T281] ? fdget+0x52/0x1e0 [ 11.617513][ T281] __sys_setsockopt+0x104/0x1a0 [ 11.617691][ T281] ? __pfx___sys_setsockopt+0x10/0x10 [ 11.617883][ T281] ? __sys_socket+0x168/0x1e0 [ 11.618062][ T281] ? __pfx___sys_socket+0x10/0x10 [ 11.618238][ T281] ? do_user_addr_fault+0x97c/0xe30 [ 11.618442][ T281] __x64_sys_setsockopt+0xbd/0x160 [ 11.618617][ T281] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.618858][ T281] do_syscall_64+0xc1/0x1d0 [ 11.619031][ T281] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.619255][ T281] RIP: 0033:0x7f4d2d0a791e [ 11.619439][ T281] 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 [ 11.620064][ T281] RSP: 002b:00007fff5c6b71a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 11.620345][ T281] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4d2d0a791e [ 11.620626][ T281] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 11.620895][ T281] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 11.621167][ T281] R10: 00007fff5c6b71cc R11: 0000000000000246 R12: 0000000000000000 [ 11.621437][ T281] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f4d2d1ac000 [ 11.621720][ T281] [ 11.636154][ T281] veth0: entered allmulticast mode [ 11.636933][ T281] veth1: entered allmulticast mode [ 11.637323][ T281] veth2: entered allmulticast mode [ 11.637892][ T281] veth3: entered allmulticast mode [ 23.162057][ T368] GACT probability NOT on [ 28.371886][ T484] ip (484) used greatest stack depth: 24272 bytes left [ 30.266239][ T281] veth0: left allmulticast mode [ 30.266619][ T281] veth1: left allmulticast mode [ 30.266848][ T281] veth2: left allmulticast mode [ 30.267076][ T281] veth3: left allmulticast mode