[ 30.384028][ T284] [ 30.384175][ T284] ============================= [ 30.384349][ T284] WARNING: suspicious RCU usage [ 30.384530][ T284] 6.12.0-rc6-virtme #1 Not tainted [ 30.384721][ T284] ----------------------------- [ 30.384899][ T284] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 30.385168][ T284] [ 30.385168][ T284] other info that might help us debug this: [ 30.385168][ T284] [ 30.386398][ T284] [ 30.386398][ T284] rcu_scheduler_active = 2, debug_locks = 1 [ 30.386657][ T284] no locks held by smcrouted/284. [ 30.386852][ T284] [ 30.386852][ T284] stack backtrace: [ 30.387065][ T284] CPU: 2 UID: 0 PID: 284 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 30.387317][ T284] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 30.387689][ T284] Call Trace: [ 30.387820][ T284] <TASK> [ 30.387910][ T284] dump_stack_lvl+0xb0/0xd0 [ 30.388084][ T284] lockdep_rcu_suspicious+0x1ea/0x280 [ 30.388253][ T284] ip6mr_get_table+0x142/0x190 [ 30.388437][ T284] ip6_mroute_setsockopt+0x185/0x12d0 [ 30.388610][ T284] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 30.388822][ T284] ? __lock_release+0x103/0x460 [ 30.388987][ T284] ? __might_fault+0x11b/0x170 [ 30.389159][ T284] ? trace_lock_acquire+0x14d/0x1f0 [ 30.389328][ T284] ? __might_fault+0xc3/0x170 [ 30.389491][ T284] ? lock_acquire+0x32/0xc0 [ 30.389656][ T284] ? __might_fault+0xc3/0x170 [ 30.389825][ T284] ? __might_fault+0x11b/0x170 [ 30.390000][ T284] do_ipv6_setsockopt+0x705/0x34e0 [ 30.390166][ T284] ? __lock_release+0xe0/0x460 [ 30.390331][ T284] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 30.390493][ T284] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 30.390659][ T284] ? rcu_read_lock_any_held+0x43/0xb0 [ 30.390824][ T284] ? validate_chain+0x1fe/0xae0 [ 30.390990][ T284] ? is_bpf_text_address+0x67/0x120 [ 30.391162][ T284] ? __pfx_validate_chain+0x10/0x10 [ 30.391324][ T284] ? hlock_class+0x4e/0x130 [ 30.391490][ T284] ? mark_lock+0x38/0x3e0 [ 30.391622][ T284] ? __lock_acquire+0xb3f/0x1580 [ 30.391796][ T284] ? find_held_lock+0x2c/0x110 [ 30.391971][ T284] ? ipv6_setsockopt+0x7f/0xe0 [ 30.392136][ T284] ipv6_setsockopt+0x7f/0xe0 [ 30.392302][ T284] rawv6_setsockopt+0xb7/0x550 [ 30.392471][ T284] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 30.392641][ T284] ? __lock_acquire+0xb3f/0x1580 [ 30.392812][ T284] ? kfree+0x2d/0x340 [ 30.392945][ T284] do_sock_setsockopt+0x149/0x3a0 [ 30.393113][ T284] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 30.393277][ T284] ? __lock_release+0x103/0x460 [ 30.393445][ T284] ? fd_install+0x1d1/0x5a0 [ 30.393628][ T284] ? trace_lock_acquire+0x14d/0x1f0 [ 30.393794][ T284] ? fdget+0x52/0x1e0 [ 30.393923][ T284] __sys_setsockopt+0x104/0x1a0 [ 30.394094][ T284] ? __pfx___sys_setsockopt+0x10/0x10 [ 30.394259][ T284] ? __sys_socket+0x168/0x1e0 [ 30.394425][ T284] ? __pfx___sys_socket+0x10/0x10 [ 30.394595][ T284] __x64_sys_setsockopt+0xbd/0x160 [ 30.394758][ T284] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 30.394966][ T284] do_syscall_64+0xc1/0x1d0 [ 30.395135][ T284] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 30.395340][ T284] RIP: 0033:0x7fb3b2d8891e [ 30.395521][ T284] 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 [ 30.396098][ T284] RSP: 002b:00007fff953299d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 30.396355][ T284] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb3b2d8891e [ 30.396605][ T284] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 30.396849][ T284] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 30.397095][ T284] R10: 00007fff953299fc R11: 0000000000000246 R12: 0000000000000000 [ 30.397345][ T284] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fb3b2e8d000 [ 30.397610][ T284] </TASK> [ 30.404005][ T284] veth0: entered allmulticast mode [ 30.406858][ T284] veth1: entered allmulticast mode [ 30.407216][ T284] veth2: entered allmulticast mode [ 30.407567][ T284] veth3: entered allmulticast mode [ 46.864103][ T371] GACT probability NOT on [ 56.647593][ T488] ip (488) used greatest stack depth: 23360 bytes left [ 60.540600][ T284] veth0: left allmulticast mode [ 60.540889][ T284] veth1: left allmulticast mode [ 60.541123][ T284] veth2: left allmulticast mode [ 60.541350][ T284] veth3: left allmulticast mode