[ 1257.982993][ T4415] [ 1257.983278][ T4415] ============================= [ 1257.983452][ T4415] WARNING: suspicious RCU usage [ 1257.983605][ T4415] 6.12.0-rc6-virtme #1 Not tainted [ 1257.983771][ T4415] ----------------------------- [ 1257.983927][ T4415] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1257.984183][ T4415] [ 1257.984183][ T4415] other info that might help us debug this: [ 1257.984183][ T4415] [ 1257.984509][ T4415] [ 1257.984509][ T4415] rcu_scheduler_active = 2, debug_locks = 1 [ 1257.984750][ T4415] no locks held by smcrouted/4415. [ 1257.984977][ T4415] [ 1257.984977][ T4415] stack backtrace: [ 1257.985182][ T4415] CPU: 0 UID: 0 PID: 4415 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1257.985463][ T4415] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1257.985660][ T4415] Call Trace: [ 1257.985783][ T4415] <TASK> [ 1257.985870][ T4415] dump_stack_lvl+0xb0/0xd0 [ 1257.986043][ T4415] lockdep_rcu_suspicious+0x1ea/0x280 [ 1257.986208][ T4415] ip6mr_get_table+0x142/0x190 [ 1257.986372][ T4415] ip6_mroute_setsockopt+0x185/0x12d0 [ 1257.986537][ T4415] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1257.986743][ T4415] ? __lock_release+0x103/0x460 [ 1257.986901][ T4415] ? __might_fault+0x11b/0x170 [ 1257.987060][ T4415] ? trace_lock_acquire+0x14d/0x1f0 [ 1257.987227][ T4415] ? __might_fault+0xc3/0x170 [ 1257.987382][ T4415] ? lock_acquire+0x32/0xc0 [ 1257.987541][ T4415] ? __might_fault+0xc3/0x170 [ 1257.987698][ T4415] ? __might_fault+0x11b/0x170 [ 1257.987870][ T4415] do_ipv6_setsockopt+0x705/0x34e0 [ 1257.988030][ T4415] ? __lock_release+0xe0/0x460 [ 1257.988191][ T4415] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1257.988352][ T4415] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1257.988514][ T4415] ? rcu_read_lock_any_held+0x43/0xb0 [ 1257.988670][ T4415] ? validate_chain+0x1fe/0xae0 [ 1257.988829][ T4415] ? is_bpf_text_address+0x67/0x120 [ 1257.988996][ T4415] ? __pfx_validate_chain+0x10/0x10 [ 1257.989151][ T4415] ? hlock_class+0x4e/0x130 [ 1257.989309][ T4415] ? mark_lock+0x38/0x3e0 [ 1257.989438][ T4415] ? __lock_acquire+0xb3f/0x1580 [ 1257.989602][ T4415] ? find_held_lock+0x2c/0x110 [ 1257.989768][ T4415] ? ipv6_setsockopt+0x7f/0xe0 [ 1257.989922][ T4415] ipv6_setsockopt+0x7f/0xe0 [ 1257.990079][ T4415] rawv6_setsockopt+0xb7/0x550 [ 1257.990240][ T4415] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1257.990393][ T4415] ? __lock_acquire+0xb3f/0x1580 [ 1257.990553][ T4415] ? kfree+0x2d/0x340 [ 1257.990676][ T4415] do_sock_setsockopt+0x149/0x3a0 [ 1257.990839][ T4415] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1257.990998][ T4415] ? __lock_release+0x103/0x460 [ 1257.991157][ T4415] ? fd_install+0x1d1/0x5a0 [ 1257.991315][ T4415] ? trace_lock_acquire+0x14d/0x1f0 [ 1257.991472][ T4415] ? fdget+0x52/0x1e0 [ 1257.991599][ T4415] __sys_setsockopt+0x104/0x1a0 [ 1257.991759][ T4415] ? __pfx___sys_setsockopt+0x10/0x10 [ 1257.991919][ T4415] ? __sys_socket+0x168/0x1e0 [ 1257.992076][ T4415] ? __pfx___sys_socket+0x10/0x10 [ 1257.992239][ T4415] ? do_user_addr_fault+0x374/0xe30 [ 1257.992404][ T4415] __x64_sys_setsockopt+0xbd/0x160 [ 1257.992558][ T4415] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1257.992748][ T4415] do_syscall_64+0xc1/0x1d0 [ 1257.992909][ T4415] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1257.993109][ T4415] RIP: 0033:0x7f299962a91e [ 1257.993274][ T4415] 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 [ 1257.993831][ T4415] RSP: 002b:00007ffebdaa3f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1257.994065][ T4415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f299962a91e [ 1257.994316][ T4415] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1257.994559][ T4415] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000012b38010 [ 1257.994794][ T4415] R10: 00007ffebdaa3f5c R11: 0000000000000246 R12: 0000000000000000 [ 1257.995029][ T4415] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f299972f000 [ 1257.995271][ T4415] </TASK> [ 1257.998000][ T4415] veth0: entered allmulticast mode [ 1257.999845][ T4415] veth1: entered allmulticast mode [ 1258.000215][ T4415] veth2: entered allmulticast mode [ 1258.000533][ T4415] veth3: entered allmulticast mode [ 1258.000844][ T4415] veth4: entered allmulticast mode [ 1258.001186][ T4415] veth5: entered allmulticast mode [ 1268.779752][ T4501] GACT probability NOT on [ 1268.821138][ T4499] tc (4499) used greatest stack depth: 23704 bytes left [ 1285.619982][ T4415] veth0: left allmulticast mode [ 1285.620347][ T4415] veth1: left allmulticast mode [ 1285.620581][ T4415] veth2: left allmulticast mode [ 1285.620860][ T4415] veth3: left allmulticast mode [ 1285.621109][ T4415] veth4: left allmulticast mode [ 1285.621345][ T4415] veth5: left allmulticast mode