[ 1282.350935][ T4453] [ 1282.351072][ T4453] ============================= [ 1282.351235][ T4453] WARNING: suspicious RCU usage [ 1282.351396][ T4453] 6.12.0-rc7-virtme #1 Not tainted [ 1282.351570][ T4453] ----------------------------- [ 1282.351730][ T4453] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1282.351960][ T4453] [ 1282.351960][ T4453] other info that might help us debug this: [ 1282.351960][ T4453] [ 1282.352262][ T4453] [ 1282.352262][ T4453] rcu_scheduler_active = 2, debug_locks = 1 [ 1282.352505][ T4453] no locks held by smcrouted/4453. [ 1282.352666][ T4453] [ 1282.352666][ T4453] stack backtrace: [ 1282.352864][ T4453] CPU: 0 UID: 0 PID: 4453 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1282.353139][ T4453] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1282.353334][ T4453] Call Trace: [ 1282.353458][ T4453] [ 1282.353547][ T4453] dump_stack_lvl+0xb0/0xd0 [ 1282.353724][ T4453] lockdep_rcu_suspicious+0x1ea/0x280 [ 1282.353892][ T4453] ip6mr_get_table+0x142/0x190 [ 1282.354072][ T4453] ip6_mroute_setsockopt+0x185/0x12d0 [ 1282.354233][ T4453] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1282.354438][ T4453] ? __lock_release+0x103/0x460 [ 1282.354596][ T4453] ? __might_fault+0x11b/0x170 [ 1282.354764][ T4453] ? trace_lock_acquire+0x14d/0x1f0 [ 1282.354928][ T4453] ? __might_fault+0xc3/0x170 [ 1282.355105][ T4453] ? lock_acquire+0x32/0xc0 [ 1282.355265][ T4453] ? __might_fault+0xc3/0x170 [ 1282.355425][ T4453] ? __might_fault+0x11b/0x170 [ 1282.355619][ T4453] do_ipv6_setsockopt+0x705/0x34e0 [ 1282.355786][ T4453] ? __lock_release+0x10/0x460 [ 1282.355948][ T4453] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1282.356121][ T4453] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1282.356282][ T4453] ? rcu_read_lock_any_held+0x43/0xb0 [ 1282.356445][ T4453] ? validate_chain+0x1fe/0xae0 [ 1282.356623][ T4453] ? is_bpf_text_address+0x67/0x120 [ 1282.356790][ T4453] ? __pfx_validate_chain+0x10/0x10 [ 1282.356948][ T4453] ? hlock_class+0x4e/0x130 [ 1282.357105][ T4453] ? mark_lock+0x38/0x3e0 [ 1282.357236][ T4453] ? __lock_acquire+0xb3f/0x1580 [ 1282.357403][ T4453] ? find_held_lock+0x2c/0x110 [ 1282.357570][ T4453] ? ipv6_setsockopt+0x7f/0xe0 [ 1282.357744][ T4453] ipv6_setsockopt+0x7f/0xe0 [ 1282.357916][ T4453] rawv6_setsockopt+0xb7/0x550 [ 1282.358084][ T4453] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1282.358246][ T4453] ? __lock_acquire+0xb3f/0x1580 [ 1282.358409][ T4453] ? kfree+0x2d/0x340 [ 1282.358540][ T4453] do_sock_setsockopt+0x149/0x3a0 [ 1282.358706][ T4453] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1282.358865][ T4453] ? __lock_release+0x103/0x460 [ 1282.359021][ T4453] ? fd_install+0x1d1/0x5a0 [ 1282.359184][ T4453] ? trace_lock_acquire+0x14d/0x1f0 [ 1282.359348][ T4453] ? fdget+0x52/0x1e0 [ 1282.359473][ T4453] __sys_setsockopt+0x104/0x1a0 [ 1282.359638][ T4453] ? __pfx___sys_setsockopt+0x10/0x10 [ 1282.359802][ T4453] ? __sys_socket+0x168/0x1e0 [ 1282.359971][ T4453] ? __pfx___sys_socket+0x10/0x10 [ 1282.360155][ T4453] ? do_user_addr_fault+0x374/0xe30 [ 1282.360318][ T4453] __x64_sys_setsockopt+0xbd/0x160 [ 1282.360477][ T4453] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1282.360679][ T4453] do_syscall_64+0xc1/0x1d0 [ 1282.360842][ T4453] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1282.361043][ T4453] RIP: 0033:0x7f79fbaa891e [ 1282.361214][ T4453] 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 [ 1282.361759][ T4453] RSP: 002b:00007ffc6b988d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1282.361998][ T4453] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f79fbaa891e [ 1282.362241][ T4453] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1282.362475][ T4453] RBP: 0000000000000008 R08: 0000000000000004 R09: 00000000193c4010 [ 1282.362710][ T4453] R10: 00007ffc6b988d3c R11: 0000000000000246 R12: 0000000000000000 [ 1282.362945][ T4453] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f79fbbad000 [ 1282.363199][ T4453] [ 1282.366901][ T4453] veth0: entered allmulticast mode [ 1282.368539][ T4453] veth1: entered allmulticast mode [ 1282.369034][ T4453] veth2: entered allmulticast mode [ 1282.369348][ T4453] veth3: entered allmulticast mode [ 1282.369677][ T4453] veth4: entered allmulticast mode [ 1282.369999][ T4453] veth5: entered allmulticast mode [ 1293.294342][ T4539] GACT probability NOT on [ 1309.482713][ T4453] veth0: left allmulticast mode [ 1309.483055][ T4453] veth1: left allmulticast mode [ 1309.483300][ T4453] veth2: left allmulticast mode [ 1309.483559][ T4453] veth3: left allmulticast mode [ 1309.483796][ T4453] veth4: left allmulticast mode [ 1309.484031][ T4453] veth5: left allmulticast mode