[ 1303.460716][ T7486] [ 1303.460851][ T7486] ============================= [ 1303.461403][ T7486] WARNING: suspicious RCU usage [ 1303.461578][ T7486] 6.12.0-rc7-virtme #1 Not tainted [ 1303.461743][ T7486] ----------------------------- [ 1303.461937][ T7486] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1303.462205][ T7486] [ 1303.462205][ T7486] other info that might help us debug this: [ 1303.462205][ T7486] [ 1303.462539][ T7486] [ 1303.462539][ T7486] rcu_scheduler_active = 2, debug_locks = 1 [ 1303.462797][ T7486] no locks held by smcrouted/7486. [ 1303.462991][ T7486] [ 1303.462991][ T7486] stack backtrace: [ 1303.463199][ T7486] CPU: 0 UID: 0 PID: 7486 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1303.463497][ T7486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1303.463712][ T7486] Call Trace: [ 1303.463846][ T7486] [ 1303.463939][ T7486] dump_stack_lvl+0xb0/0xd0 [ 1303.464122][ T7486] lockdep_rcu_suspicious+0x1ea/0x280 [ 1303.464296][ T7486] ip6mr_get_table+0x142/0x190 [ 1303.464485][ T7486] ip6_mroute_setsockopt+0x185/0x12d0 [ 1303.464655][ T7486] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1303.464880][ T7486] ? __lock_release+0x103/0x460 [ 1303.465051][ T7486] ? __might_fault+0x11b/0x170 [ 1303.465222][ T7486] ? trace_lock_acquire+0x14d/0x1f0 [ 1303.465397][ T7486] ? __might_fault+0xc3/0x170 [ 1303.465573][ T7486] ? lock_acquire+0x32/0xc0 [ 1303.465739][ T7486] ? __might_fault+0xc3/0x170 [ 1303.465919][ T7486] ? __might_fault+0x11b/0x170 [ 1303.466104][ T7486] do_ipv6_setsockopt+0x705/0x34e0 [ 1303.466280][ T7486] ? __lock_release+0x40/0x460 [ 1303.466449][ T7486] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1303.466624][ T7486] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1303.466797][ T7486] ? rcu_read_lock_any_held+0x43/0xb0 [ 1303.466973][ T7486] ? validate_chain+0x1fe/0xae0 [ 1303.467145][ T7486] ? is_bpf_text_address+0x67/0x120 [ 1303.467331][ T7486] ? __pfx_validate_chain+0x10/0x10 [ 1303.467502][ T7486] ? hlock_class+0x4e/0x130 [ 1303.467674][ T7486] ? mark_lock+0x38/0x3e0 [ 1303.467804][ T7486] ? __lock_acquire+0xb3f/0x1580 [ 1303.467990][ T7486] ? find_held_lock+0x2c/0x110 [ 1303.468173][ T7486] ? ipv6_setsockopt+0x7f/0xe0 [ 1303.468341][ T7486] ipv6_setsockopt+0x7f/0xe0 [ 1303.468514][ T7486] rawv6_setsockopt+0xb7/0x550 [ 1303.468682][ T7486] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1303.468852][ T7486] ? __lock_acquire+0xb3f/0x1580 [ 1303.469024][ T7486] ? kfree+0x2d/0x340 [ 1303.469164][ T7486] do_sock_setsockopt+0x149/0x3a0 [ 1303.469331][ T7486] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1303.469505][ T7486] ? __lock_release+0x103/0x460 [ 1303.469674][ T7486] ? fd_install+0x1d1/0x5a0 [ 1303.469846][ T7486] ? trace_lock_acquire+0x14d/0x1f0 [ 1303.470016][ T7486] ? fdget+0x52/0x1e0 [ 1303.470158][ T7486] __sys_setsockopt+0x104/0x1a0 [ 1303.470329][ T7486] ? __pfx___sys_setsockopt+0x10/0x10 [ 1303.470504][ T7486] ? __sys_socket+0x168/0x1e0 [ 1303.470674][ T7486] ? __pfx___sys_socket+0x10/0x10 [ 1303.470842][ T7486] ? do_user_addr_fault+0x374/0xe30 [ 1303.471015][ T7486] __x64_sys_setsockopt+0xbd/0x160 [ 1303.471181][ T7486] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1303.471405][ T7486] do_syscall_64+0xc1/0x1d0 [ 1303.471580][ T7486] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1303.471788][ T7486] RIP: 0033:0x7f48780ff91e [ 1303.471992][ T7486] 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 [ 1303.472591][ T7486] RSP: 002b:00007fffc394ceb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1303.472866][ T7486] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f48780ff91e [ 1303.473118][ T7486] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1303.473369][ T7486] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1303.473629][ T7486] R10: 00007fffc394cedc R11: 0000000000000246 R12: 0000000000000000 [ 1303.473895][ T7486] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f4878204000 [ 1303.474171][ T7486] [ 1303.476736][ T7486] veth0: entered allmulticast mode [ 1303.478154][ T7486] veth1: entered allmulticast mode [ 1303.478520][ T7486] veth2: entered allmulticast mode [ 1303.478859][ T7486] veth3: entered allmulticast mode [ 1303.479216][ T7486] veth4: entered allmulticast mode [ 1303.479550][ T7486] veth5: entered allmulticast mode [ 1328.903243][ T7486] veth0: left allmulticast mode [ 1328.903601][ T7486] veth1: left allmulticast mode [ 1328.903835][ T7486] veth2: left allmulticast mode [ 1328.904094][ T7486] veth3: left allmulticast mode [ 1328.904324][ T7486] veth4: left allmulticast mode [ 1328.904552][ T7486] veth5: left allmulticast mode