[ 1311.751447][ T8225] [ 1311.751614][ T8225] ============================= [ 1311.751789][ T8225] WARNING: suspicious RCU usage [ 1311.751964][ T8225] 6.12.0-rc7-virtme #1 Not tainted [ 1311.752138][ T8225] ----------------------------- [ 1311.752307][ T8225] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1311.752744][ T8225] [ 1311.752744][ T8225] other info that might help us debug this: [ 1311.752744][ T8225] [ 1311.753056][ T8225] [ 1311.753056][ T8225] rcu_scheduler_active = 2, debug_locks = 1 [ 1311.753300][ T8225] no locks held by smcrouted/8225. [ 1311.753481][ T8225] [ 1311.753481][ T8225] stack backtrace: [ 1311.753688][ T8225] CPU: 2 UID: 0 PID: 8225 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1311.753955][ T8225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1311.754145][ T8225] Call Trace: [ 1311.754265][ T8225] [ 1311.754352][ T8225] dump_stack_lvl+0xb0/0xd0 [ 1311.754526][ T8225] lockdep_rcu_suspicious+0x1ea/0x280 [ 1311.754691][ T8225] ip6mr_get_table+0x142/0x190 [ 1311.754849][ T8225] ip6_mroute_setsockopt+0x185/0x12d0 [ 1311.755010][ T8225] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1311.755210][ T8225] ? __lock_release+0x103/0x460 [ 1311.755381][ T8225] ? __might_fault+0x11b/0x170 [ 1311.755550][ T8225] ? trace_lock_acquire+0x14d/0x1f0 [ 1311.755712][ T8225] ? __might_fault+0xc3/0x170 [ 1311.755866][ T8225] ? lock_acquire+0x32/0xc0 [ 1311.756024][ T8225] ? __might_fault+0xc3/0x170 [ 1311.756180][ T8225] ? __might_fault+0x11b/0x170 [ 1311.756345][ T8225] do_ipv6_setsockopt+0x705/0x34e0 [ 1311.756505][ T8225] ? __lock_release+0x10/0x460 [ 1311.756664][ T8225] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1311.756816][ T8225] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1311.756977][ T8225] ? rcu_read_lock_any_held+0x43/0xb0 [ 1311.757134][ T8225] ? validate_chain+0x1fe/0xae0 [ 1311.757297][ T8225] ? is_bpf_text_address+0x67/0x120 [ 1311.757461][ T8225] ? __pfx_validate_chain+0x10/0x10 [ 1311.757615][ T8225] ? hlock_class+0x4e/0x130 [ 1311.757773][ T8225] ? mark_lock+0x38/0x3e0 [ 1311.757897][ T8225] ? __lock_acquire+0xb3f/0x1580 [ 1311.758060][ T8225] ? find_held_lock+0x2c/0x110 [ 1311.758222][ T8225] ? ipv6_setsockopt+0x7f/0xe0 [ 1311.758375][ T8225] ipv6_setsockopt+0x7f/0xe0 [ 1311.758544][ T8225] rawv6_setsockopt+0xb7/0x550 [ 1311.758731][ T8225] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1311.758884][ T8225] ? __lock_acquire+0xb3f/0x1580 [ 1311.759042][ T8225] ? kfree+0x2d/0x340 [ 1311.759169][ T8225] do_sock_setsockopt+0x149/0x3a0 [ 1311.759327][ T8225] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1311.759484][ T8225] ? __lock_release+0x103/0x460 [ 1311.759637][ T8225] ? fd_install+0x1d1/0x5a0 [ 1311.759798][ T8225] ? trace_lock_acquire+0x14d/0x1f0 [ 1311.759959][ T8225] ? fdget+0x52/0x1e0 [ 1311.760081][ T8225] __sys_setsockopt+0x104/0x1a0 [ 1311.760238][ T8225] ? __pfx___sys_setsockopt+0x10/0x10 [ 1311.760393][ T8225] ? __sys_socket+0x168/0x1e0 [ 1311.760555][ T8225] ? __pfx___sys_socket+0x10/0x10 [ 1311.760711][ T8225] ? do_user_addr_fault+0x374/0xe30 [ 1311.760868][ T8225] __x64_sys_setsockopt+0xbd/0x160 [ 1311.761022][ T8225] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1311.761218][ T8225] do_syscall_64+0xc1/0x1d0 [ 1311.761373][ T8225] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1311.761564][ T8225] RIP: 0033:0x7f07872a591e [ 1311.761728][ T8225] 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 [ 1311.762271][ T8225] RSP: 002b:00007fffaf5cb108 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1311.762535][ T8225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f07872a591e [ 1311.762767][ T8225] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1311.763001][ T8225] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1311.763232][ T8225] R10: 00007fffaf5cb12c R11: 0000000000000246 R12: 0000000000000000 [ 1311.763465][ T8225] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f07873aa000 [ 1311.763710][ T8225] [ 1311.766194][ T8225] veth0: entered allmulticast mode [ 1311.766823][ T8225] veth1: entered allmulticast mode [ 1311.767166][ T8225] veth2: entered allmulticast mode [ 1311.767503][ T8225] veth3: entered allmulticast mode [ 1311.767833][ T8225] veth4: entered allmulticast mode [ 1311.768162][ T8225] veth5: entered allmulticast mode [ 1337.783252][ T8225] veth0: left allmulticast mode [ 1337.783691][ T8225] veth1: left allmulticast mode [ 1337.783995][ T8225] veth2: left allmulticast mode [ 1337.784253][ T8225] veth3: left allmulticast mode [ 1337.784531][ T8225] veth4: left allmulticast mode [ 1337.784794][ T8225] veth5: left allmulticast mode