[ 1267.494420][ T4311] [ 1267.494568][ T4311] ============================= [ 1267.494746][ T4311] WARNING: suspicious RCU usage [ 1267.494921][ T4311] 6.12.0-rc7-virtme #1 Not tainted [ 1267.495096][ T4311] ----------------------------- [ 1267.495281][ T4311] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1267.495540][ T4311] [ 1267.495540][ T4311] other info that might help us debug this: [ 1267.495540][ T4311] [ 1267.495926][ T4311] [ 1267.495926][ T4311] rcu_scheduler_active = 2, debug_locks = 1 [ 1267.496188][ T4311] no locks held by smcrouted/4311. [ 1267.496364][ T4311] [ 1267.496364][ T4311] stack backtrace: [ 1267.496578][ T4311] CPU: 0 UID: 0 PID: 4311 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1267.496910][ T4311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1267.497128][ T4311] Call Trace: [ 1267.497266][ T4311] [ 1267.497363][ T4311] dump_stack_lvl+0xb0/0xd0 [ 1267.497553][ T4311] lockdep_rcu_suspicious+0x1ea/0x280 [ 1267.497734][ T4311] ip6mr_get_table+0x142/0x190 [ 1267.497910][ T4311] ip6_mroute_setsockopt+0x185/0x12d0 [ 1267.498082][ T4311] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1267.498301][ T4311] ? __lock_release+0x103/0x460 [ 1267.498466][ T4311] ? __might_fault+0x11b/0x170 [ 1267.498634][ T4311] ? trace_lock_acquire+0x14d/0x1f0 [ 1267.498800][ T4311] ? __might_fault+0xc3/0x170 [ 1267.498959][ T4311] ? lock_acquire+0x32/0xc0 [ 1267.499128][ T4311] ? __might_fault+0xc3/0x170 [ 1267.499287][ T4311] ? __might_fault+0x11b/0x170 [ 1267.499458][ T4311] do_ipv6_setsockopt+0x705/0x34e0 [ 1267.499625][ T4311] ? __lock_release+0x10/0x460 [ 1267.499822][ T4311] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1267.499990][ T4311] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1267.500170][ T4311] ? rcu_read_lock_any_held+0x43/0xb0 [ 1267.500347][ T4311] ? validate_chain+0x1fe/0xae0 [ 1267.500523][ T4311] ? is_bpf_text_address+0x67/0x120 [ 1267.500704][ T4311] ? __pfx_validate_chain+0x10/0x10 [ 1267.500863][ T4311] ? hlock_class+0x4e/0x130 [ 1267.501023][ T4311] ? mark_lock+0x38/0x3e0 [ 1267.501158][ T4311] ? __lock_acquire+0xb3f/0x1580 [ 1267.501328][ T4311] ? find_held_lock+0x2c/0x110 [ 1267.501492][ T4311] ? ipv6_setsockopt+0x7f/0xe0 [ 1267.501662][ T4311] ipv6_setsockopt+0x7f/0xe0 [ 1267.501830][ T4311] rawv6_setsockopt+0xb7/0x550 [ 1267.502003][ T4311] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1267.502167][ T4311] ? __lock_acquire+0xb3f/0x1580 [ 1267.502331][ T4311] ? kfree+0x2d/0x340 [ 1267.502457][ T4311] do_sock_setsockopt+0x149/0x3a0 [ 1267.502630][ T4311] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1267.502799][ T4311] ? __lock_release+0x103/0x460 [ 1267.502975][ T4311] ? fd_install+0x1d1/0x5a0 [ 1267.503143][ T4311] ? trace_lock_acquire+0x14d/0x1f0 [ 1267.503332][ T4311] ? fdget+0x52/0x1e0 [ 1267.503455][ T4311] __sys_setsockopt+0x104/0x1a0 [ 1267.503626][ T4311] ? __pfx___sys_setsockopt+0x10/0x10 [ 1267.503818][ T4311] ? __sys_socket+0x168/0x1e0 [ 1267.503978][ T4311] ? __pfx___sys_socket+0x10/0x10 [ 1267.504139][ T4311] ? do_user_addr_fault+0x374/0xe30 [ 1267.504301][ T4311] __x64_sys_setsockopt+0xbd/0x160 [ 1267.504457][ T4311] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1267.504670][ T4311] do_syscall_64+0xc1/0x1d0 [ 1267.504840][ T4311] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1267.505042][ T4311] RIP: 0033:0x7f964e12791e [ 1267.505219][ T4311] 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 [ 1267.505803][ T4311] RSP: 002b:00007ffe256903f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1267.506051][ T4311] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964e12791e [ 1267.506289][ T4311] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1267.506537][ T4311] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000001260010 [ 1267.506791][ T4311] R10: 00007ffe2569041c R11: 0000000000000246 R12: 0000000000000000 [ 1267.507036][ T4311] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f964e22c000 [ 1267.507292][ T4311] [ 1267.510043][ T4311] veth0: entered allmulticast mode [ 1267.511813][ T4311] veth1: entered allmulticast mode [ 1267.512177][ T4311] veth2: entered allmulticast mode [ 1267.512499][ T4311] veth3: entered allmulticast mode [ 1267.512822][ T4311] veth4: entered allmulticast mode [ 1267.513148][ T4311] veth5: entered allmulticast mode [ 1278.722449][ T4398] GACT probability NOT on [ 1295.383371][ T4311] veth0: left allmulticast mode [ 1295.383688][ T4311] veth1: left allmulticast mode [ 1295.383916][ T4311] veth2: left allmulticast mode [ 1295.384145][ T4311] veth3: left allmulticast mode [ 1295.384399][ T4311] veth4: left allmulticast mode [ 1295.384627][ T4311] veth5: left allmulticast mode