[ 1262.716408][ T4456] [ 1262.716606][ T4456] ============================= [ 1262.716802][ T4456] WARNING: suspicious RCU usage [ 1262.717009][ T4456] 6.12.0-rc7-virtme #1 Not tainted [ 1262.717199][ T4456] ----------------------------- [ 1262.717405][ T4456] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1262.717679][ T4456] [ 1262.717679][ T4456] other info that might help us debug this: [ 1262.717679][ T4456] [ 1262.718046][ T4456] [ 1262.718046][ T4456] rcu_scheduler_active = 2, debug_locks = 1 [ 1262.718310][ T4456] no locks held by smcrouted/4456. [ 1262.718509][ T4456] [ 1262.718509][ T4456] stack backtrace: [ 1262.718804][ T4456] CPU: 2 UID: 0 PID: 4456 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1262.719151][ T4456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1262.719367][ T4456] Call Trace: [ 1262.719505][ T4456] [ 1262.719593][ T4456] dump_stack_lvl+0xb0/0xd0 [ 1262.719809][ T4456] lockdep_rcu_suspicious+0x1ea/0x280 [ 1262.719993][ T4456] ip6mr_get_table+0x142/0x190 [ 1262.720207][ T4456] ip6_mroute_setsockopt+0x185/0x12d0 [ 1262.720424][ T4456] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1262.720650][ T4456] ? __lock_release+0x103/0x460 [ 1262.720816][ T4456] ? __might_fault+0x11b/0x170 [ 1262.720992][ T4456] ? trace_lock_acquire+0x14d/0x1f0 [ 1262.721157][ T4456] ? __might_fault+0xc3/0x170 [ 1262.721316][ T4456] ? lock_acquire+0x32/0xc0 [ 1262.721477][ T4456] ? __might_fault+0xc3/0x170 [ 1262.721641][ T4456] ? __might_fault+0x11b/0x170 [ 1262.721837][ T4456] do_ipv6_setsockopt+0x705/0x34e0 [ 1262.722021][ T4456] ? __lock_release+0x10/0x460 [ 1262.722190][ T4456] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1262.722354][ T4456] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1262.722528][ T4456] ? rcu_read_lock_any_held+0x43/0xb0 [ 1262.722703][ T4456] ? validate_chain+0x1fe/0xae0 [ 1262.722870][ T4456] ? is_bpf_text_address+0x67/0x120 [ 1262.723148][ T4456] ? __pfx_validate_chain+0x10/0x10 [ 1262.723335][ T4456] ? hlock_class+0x4e/0x130 [ 1262.723502][ T4456] ? mark_lock+0x38/0x3e0 [ 1262.723638][ T4456] ? __lock_acquire+0xb3f/0x1580 [ 1262.723815][ T4456] ? find_held_lock+0x2c/0x110 [ 1262.724015][ T4456] ? ipv6_setsockopt+0x7f/0xe0 [ 1262.724183][ T4456] ipv6_setsockopt+0x7f/0xe0 [ 1262.724351][ T4456] rawv6_setsockopt+0xb7/0x550 [ 1262.724521][ T4456] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1262.724691][ T4456] ? __lock_acquire+0xb3f/0x1580 [ 1262.724862][ T4456] ? kfree+0x2d/0x340 [ 1262.725041][ T4456] do_sock_setsockopt+0x149/0x3a0 [ 1262.725222][ T4456] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1262.725392][ T4456] ? __lock_release+0x103/0x460 [ 1262.725557][ T4456] ? fd_install+0x1d1/0x5a0 [ 1262.725741][ T4456] ? trace_lock_acquire+0x14d/0x1f0 [ 1262.725937][ T4456] ? fdget+0x52/0x1e0 [ 1262.726073][ T4456] __sys_setsockopt+0x104/0x1a0 [ 1262.726252][ T4456] ? __pfx___sys_setsockopt+0x10/0x10 [ 1262.726422][ T4456] ? __sys_socket+0x168/0x1e0 [ 1262.726590][ T4456] ? __pfx___sys_socket+0x10/0x10 [ 1262.726748][ T4456] ? do_user_addr_fault+0x374/0xe30 [ 1262.726936][ T4456] __x64_sys_setsockopt+0xbd/0x160 [ 1262.727107][ T4456] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1262.727314][ T4456] do_syscall_64+0xc1/0x1d0 [ 1262.727478][ T4456] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1262.727750][ T4456] RIP: 0033:0x7f570197191e [ 1262.727941][ T4456] 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 [ 1262.728555][ T4456] RSP: 002b:00007ffcf8eb8bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1262.728802][ T4456] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f570197191e [ 1262.729058][ T4456] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1262.729358][ T4456] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000aa7010 [ 1262.729601][ T4456] R10: 00007ffcf8eb8bec R11: 0000000000000246 R12: 0000000000000000 [ 1262.729907][ T4456] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f5701a76000 [ 1262.730160][ T4456] [ 1262.733375][ T4456] veth0: entered allmulticast mode [ 1262.734072][ T4456] veth1: entered allmulticast mode [ 1262.734517][ T4456] veth2: entered allmulticast mode [ 1262.734924][ T4456] veth3: entered allmulticast mode [ 1262.735340][ T4456] veth4: entered allmulticast mode [ 1262.741880][ T4456] veth5: entered allmulticast mode [ 1273.734896][ T4542] GACT probability NOT on [ 1290.240852][ T4456] veth0: left allmulticast mode [ 1290.241197][ T4456] veth1: left allmulticast mode [ 1290.241446][ T4456] veth2: left allmulticast mode [ 1290.241676][ T4456] veth3: left allmulticast mode [ 1290.241908][ T4456] veth4: left allmulticast mode [ 1290.242141][ T4456] veth5: left allmulticast mode