[ 1904.075335][ T8737] [ 1904.075469][ T8737] ============================= [ 1904.075647][ T8737] WARNING: suspicious RCU usage [ 1904.075840][ T8737] 6.12.0-rc6-virtme #1 Not tainted [ 1904.075996][ T8737] ----------------------------- [ 1904.076152][ T8737] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1904.076404][ T8737] [ 1904.076404][ T8737] other info that might help us debug this: [ 1904.076404][ T8737] [ 1904.076717][ T8737] [ 1904.076717][ T8737] rcu_scheduler_active = 2, debug_locks = 1 [ 1904.076969][ T8737] no locks held by smcrouted/8737. [ 1904.077126][ T8737] [ 1904.077126][ T8737] stack backtrace: [ 1904.077321][ T8737] CPU: 3 UID: 0 PID: 8737 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1904.077626][ T8737] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1904.077970][ T8737] Call Trace: [ 1904.078090][ T8737] [ 1904.078173][ T8737] dump_stack_lvl+0xb0/0xd0 [ 1904.078340][ T8737] lockdep_rcu_suspicious+0x1ea/0x280 [ 1904.078499][ T8737] ip6mr_get_table+0x142/0x190 [ 1904.078658][ T8737] ip6_mroute_setsockopt+0x185/0x12d0 [ 1904.078812][ T8737] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1904.079009][ T8737] ? __lock_release+0x103/0x460 [ 1904.079166][ T8737] ? __might_fault+0x11b/0x170 [ 1904.079321][ T8737] ? trace_lock_acquire+0x14d/0x1f0 [ 1904.079479][ T8737] ? __might_fault+0xc3/0x170 [ 1904.079634][ T8737] ? lock_acquire+0x32/0xc0 [ 1904.079790][ T8737] ? __might_fault+0xc3/0x170 [ 1904.079946][ T8737] ? __might_fault+0x11b/0x170 [ 1904.080109][ T8737] do_ipv6_setsockopt+0x705/0x34e0 [ 1904.080266][ T8737] ? __lock_release+0xe0/0x460 [ 1904.080424][ T8737] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1904.080580][ T8737] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1904.080735][ T8737] ? rcu_read_lock_any_held+0x43/0xb0 [ 1904.080888][ T8737] ? validate_chain+0x1fe/0xae0 [ 1904.081042][ T8737] ? is_bpf_text_address+0x67/0x120 [ 1904.081209][ T8737] ? __pfx_validate_chain+0x10/0x10 [ 1904.081359][ T8737] ? hlock_class+0x4e/0x130 [ 1904.081515][ T8737] ? mark_lock+0x38/0x3e0 [ 1904.081637][ T8737] ? __lock_acquire+0xb3f/0x1580 [ 1904.081805][ T8737] ? find_held_lock+0x2c/0x110 [ 1904.081961][ T8737] ? ipv6_setsockopt+0x7f/0xe0 [ 1904.082111][ T8737] ipv6_setsockopt+0x7f/0xe0 [ 1904.082264][ T8737] rawv6_setsockopt+0xb7/0x550 [ 1904.082423][ T8737] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1904.082580][ T8737] ? __lock_acquire+0xb3f/0x1580 [ 1904.082736][ T8737] ? kfree+0x2d/0x340 [ 1904.082860][ T8737] do_sock_setsockopt+0x149/0x3a0 [ 1904.083012][ T8737] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1904.083165][ T8737] ? __lock_release+0x103/0x460 [ 1904.083313][ T8737] ? fd_install+0x1d1/0x5a0 [ 1904.083469][ T8737] ? trace_lock_acquire+0x14d/0x1f0 [ 1904.083629][ T8737] ? fdget+0x52/0x1e0 [ 1904.083751][ T8737] __sys_setsockopt+0x104/0x1a0 [ 1904.083909][ T8737] ? __pfx___sys_setsockopt+0x10/0x10 [ 1904.084061][ T8737] ? __sys_socket+0x168/0x1e0 [ 1904.084214][ T8737] ? __pfx___sys_socket+0x10/0x10 [ 1904.084376][ T8737] __x64_sys_setsockopt+0xbd/0x160 [ 1904.084530][ T8737] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1904.084726][ T8737] do_syscall_64+0xc1/0x1d0 [ 1904.084885][ T8737] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1904.085071][ T8737] RIP: 0033:0x7fc2a7ffd91e [ 1904.085238][ T8737] 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 [ 1904.085767][ T8737] RSP: 002b:00007ffed4149318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1904.086004][ T8737] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc2a7ffd91e [ 1904.086234][ T8737] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1904.086464][ T8737] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1904.086696][ T8737] R10: 00007ffed414933c R11: 0000000000000246 R12: 0000000000000000 [ 1904.086927][ T8737] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc2a8102000 [ 1904.087171][ T8737] [ 1904.098411][ T8737] veth0: entered allmulticast mode [ 1904.098935][ T8737] veth1: entered allmulticast mode [ 1904.099254][ T8737] veth2: entered allmulticast mode [ 1904.099570][ T8737] veth3: entered allmulticast mode [ 1904.099874][ T8737] veth4: entered allmulticast mode [ 1904.100175][ T8737] veth5: entered allmulticast mode [ 1950.483796][ T8737] veth0: left allmulticast mode [ 1950.484124][ T8737] veth1: left allmulticast mode [ 1950.484369][ T8737] veth2: left allmulticast mode [ 1950.484632][ T8737] veth3: left allmulticast mode [ 1950.484870][ T8737] veth4: left allmulticast mode [ 1950.485107][ T8737] veth5: left allmulticast mode