[ 1747.125105][T12349] [ 1747.125490][T12349] ============================= [ 1747.125648][T12349] WARNING: suspicious RCU usage [ 1747.125807][T12349] 6.12.0-rc6-virtme #1 Not tainted [ 1747.125961][T12349] ----------------------------- [ 1747.126111][T12349] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1747.126426][T12349] [ 1747.126426][T12349] other info that might help us debug this: [ 1747.126426][T12349] [ 1747.126717][T12349] [ 1747.126717][T12349] rcu_scheduler_active = 2, debug_locks = 1 [ 1747.126947][T12349] no locks held by smcrouted/12349. [ 1747.127103][T12349] [ 1747.127103][T12349] stack backtrace: [ 1747.127311][T12349] CPU: 1 UID: 0 PID: 12349 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1747.127581][T12349] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1747.127928][T12349] Call Trace: [ 1747.128052][T12349] [ 1747.128135][T12349] dump_stack_lvl+0xb0/0xd0 [ 1747.128315][T12349] lockdep_rcu_suspicious+0x1ea/0x280 [ 1747.128482][T12349] ip6mr_get_table+0x142/0x190 [ 1747.128651][T12349] ip6_mroute_setsockopt+0x185/0x12d0 [ 1747.128818][T12349] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1747.129029][T12349] ? __lock_release+0x103/0x460 [ 1747.129185][T12349] ? __might_fault+0x11b/0x170 [ 1747.129346][T12349] ? trace_lock_acquire+0x14d/0x1f0 [ 1747.129506][T12349] ? __might_fault+0xc3/0x170 [ 1747.129657][T12349] ? lock_acquire+0x32/0xc0 [ 1747.129808][T12349] ? __might_fault+0xc3/0x170 [ 1747.129958][T12349] ? __might_fault+0x11b/0x170 [ 1747.130128][T12349] do_ipv6_setsockopt+0x705/0x34e0 [ 1747.130299][T12349] ? __lock_release+0xe0/0x460 [ 1747.130468][T12349] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1747.130663][T12349] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1747.130837][T12349] ? rcu_read_lock_any_held+0x43/0xb0 [ 1747.131001][T12349] ? validate_chain+0x1fe/0xae0 [ 1747.131165][T12349] ? is_bpf_text_address+0x67/0x120 [ 1747.131339][T12349] ? __pfx_validate_chain+0x10/0x10 [ 1747.131504][T12349] ? hlock_class+0x4e/0x130 [ 1747.131668][T12349] ? mark_lock+0x38/0x3e0 [ 1747.131801][T12349] ? __lock_acquire+0xb3f/0x1580 [ 1747.131973][T12349] ? find_held_lock+0x2c/0x110 [ 1747.132141][T12349] ? ipv6_setsockopt+0x7f/0xe0 [ 1747.132316][T12349] ipv6_setsockopt+0x7f/0xe0 [ 1747.132485][T12349] rawv6_setsockopt+0xb7/0x550 [ 1747.132655][T12349] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1747.132814][T12349] ? __lock_acquire+0xb3f/0x1580 [ 1747.132981][T12349] ? kfree+0x2d/0x340 [ 1747.133110][T12349] do_sock_setsockopt+0x149/0x3a0 [ 1747.133276][T12349] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1747.133444][T12349] ? __lock_release+0x103/0x460 [ 1747.133606][T12349] ? fd_install+0x1d1/0x5a0 [ 1747.133773][T12349] ? trace_lock_acquire+0x14d/0x1f0 [ 1747.133940][T12349] ? fdget+0x52/0x1e0 [ 1747.134067][T12349] __sys_setsockopt+0x104/0x1a0 [ 1747.134237][T12349] ? __pfx___sys_setsockopt+0x10/0x10 [ 1747.134403][T12349] ? __sys_socket+0x168/0x1e0 [ 1747.134566][T12349] ? __pfx___sys_socket+0x10/0x10 [ 1747.134736][T12349] __x64_sys_setsockopt+0xbd/0x160 [ 1747.134900][T12349] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1747.135101][T12349] do_syscall_64+0xc1/0x1d0 [ 1747.135561][T12349] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1747.135767][T12349] RIP: 0033:0x7f9b4752c91e [ 1747.135934][T12349] 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 [ 1747.136509][T12349] RSP: 002b:00007ffe430b8468 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1747.136757][T12349] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9b4752c91e [ 1747.136998][T12349] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1747.137234][T12349] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1747.137476][T12349] R10: 00007ffe430b848c R11: 0000000000000246 R12: 0000000000000000 [ 1747.137733][T12349] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f9b47631000 [ 1747.137970][T12349] [ 1747.144496][T12349] veth0: entered allmulticast mode [ 1747.145021][T12349] veth1: entered allmulticast mode [ 1747.145352][T12349] veth2: entered allmulticast mode [ 1747.145663][T12349] veth3: entered allmulticast mode [ 1747.145975][T12349] veth4: entered allmulticast mode [ 1747.146296][T12349] veth5: entered allmulticast mode [ 1794.742917][T12349] veth0: left allmulticast mode [ 1794.743271][T12349] veth1: left allmulticast mode [ 1794.743510][T12349] veth2: left allmulticast mode [ 1794.743782][T12349] veth3: left allmulticast mode [ 1794.744043][T12349] veth4: left allmulticast mode [ 1794.744309][T12349] veth5: left allmulticast mode