[ 1857.878010][T12540] [ 1857.878141][T12540] ============================= [ 1857.878325][T12540] WARNING: suspicious RCU usage [ 1857.878487][T12540] 6.12.0-rc6-virtme #1 Not tainted [ 1857.878663][T12540] ----------------------------- [ 1857.878838][T12540] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1857.879063][T12540] [ 1857.879063][T12540] other info that might help us debug this: [ 1857.879063][T12540] [ 1857.879380][T12540] [ 1857.879380][T12540] rcu_scheduler_active = 2, debug_locks = 1 [ 1857.879614][T12540] no locks held by smcrouted/12540. [ 1857.879770][T12540] [ 1857.879770][T12540] stack backtrace: [ 1857.879972][T12540] CPU: 1 UID: 0 PID: 12540 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1857.880245][T12540] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1857.880594][T12540] Call Trace: [ 1857.880728][T12540] [ 1857.880819][T12540] dump_stack_lvl+0xb0/0xd0 [ 1857.881005][T12540] lockdep_rcu_suspicious+0x1ea/0x280 [ 1857.881169][T12540] ip6mr_get_table+0x142/0x190 [ 1857.881344][T12540] ip6_mroute_setsockopt+0x185/0x12d0 [ 1857.881509][T12540] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1857.881723][T12540] ? __lock_release+0x103/0x460 [ 1857.881872][T12540] ? __might_fault+0x11b/0x170 [ 1857.882041][T12540] ? trace_lock_acquire+0x14d/0x1f0 [ 1857.882212][T12540] ? __might_fault+0xc3/0x170 [ 1857.882376][T12540] ? lock_acquire+0x32/0xc0 [ 1857.882541][T12540] ? __might_fault+0xc3/0x170 [ 1857.882708][T12540] ? __might_fault+0x11b/0x170 [ 1857.882870][T12540] do_ipv6_setsockopt+0x705/0x34e0 [ 1857.883027][T12540] ? __lock_release+0xe0/0x460 [ 1857.883194][T12540] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1857.883346][T12540] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1857.883506][T12540] ? rcu_read_lock_any_held+0x43/0xb0 [ 1857.883658][T12540] ? validate_chain+0x1fe/0xae0 [ 1857.883814][T12540] ? is_bpf_text_address+0x67/0x120 [ 1857.883976][T12540] ? __pfx_validate_chain+0x10/0x10 [ 1857.884138][T12540] ? hlock_class+0x4e/0x130 [ 1857.884302][T12540] ? mark_lock+0x38/0x3e0 [ 1857.884431][T12540] ? __lock_acquire+0xb3f/0x1580 [ 1857.884600][T12540] ? find_held_lock+0x2c/0x110 [ 1857.884769][T12540] ? ipv6_setsockopt+0x7f/0xe0 [ 1857.884927][T12540] ipv6_setsockopt+0x7f/0xe0 [ 1857.885093][T12540] rawv6_setsockopt+0xb7/0x550 [ 1857.885263][T12540] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1857.885420][T12540] ? __lock_acquire+0xb3f/0x1580 [ 1857.885579][T12540] ? kfree+0x2d/0x340 [ 1857.885710][T12540] do_sock_setsockopt+0x149/0x3a0 [ 1857.885876][T12540] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1857.886035][T12540] ? __lock_release+0x103/0x460 [ 1857.886211][T12540] ? fd_install+0x1d1/0x5a0 [ 1857.886376][T12540] ? trace_lock_acquire+0x14d/0x1f0 [ 1857.886541][T12540] ? fdget+0x52/0x1e0 [ 1857.886667][T12540] __sys_setsockopt+0x104/0x1a0 [ 1857.886830][T12540] ? __pfx___sys_setsockopt+0x10/0x10 [ 1857.886989][T12540] ? __sys_socket+0x168/0x1e0 [ 1857.887155][T12540] ? __pfx___sys_socket+0x10/0x10 [ 1857.887328][T12540] __x64_sys_setsockopt+0xbd/0x160 [ 1857.887491][T12540] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1857.887688][T12540] do_syscall_64+0xc1/0x1d0 [ 1857.887854][T12540] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1857.888053][T12540] RIP: 0033:0x7f9b04a7c91e [ 1857.888223][T12540] 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 [ 1857.888788][T12540] RSP: 002b:00007ffd245b33f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1857.889044][T12540] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9b04a7c91e [ 1857.889288][T12540] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1857.889528][T12540] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1857.889774][T12540] R10: 00007ffd245b341c R11: 0000000000000246 R12: 0000000000000000 [ 1857.890034][T12540] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f9b04b81000 [ 1857.890304][T12540] [ 1857.896492][T12540] veth0: entered allmulticast mode [ 1857.897088][T12540] veth1: entered allmulticast mode [ 1857.897446][T12540] veth2: entered allmulticast mode [ 1857.897792][T12540] veth3: entered allmulticast mode [ 1887.473786][T12540] veth0: left allmulticast mode [ 1887.474113][T12540] veth1: left allmulticast mode [ 1887.474367][T12540] veth2: left allmulticast mode [ 1887.474623][T12540] veth3: left allmulticast mode