[ 1256.308542][ T4416] [ 1256.308667][ T4416] ============================= [ 1256.308825][ T4416] WARNING: suspicious RCU usage [ 1256.308981][ T4416] 6.12.0-rc7-virtme #1 Not tainted [ 1256.309141][ T4416] ----------------------------- [ 1256.309317][ T4416] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1256.309557][ T4416] [ 1256.309557][ T4416] other info that might help us debug this: [ 1256.309557][ T4416] [ 1256.309859][ T4416] [ 1256.309859][ T4416] rcu_scheduler_active = 2, debug_locks = 1 [ 1256.310089][ T4416] no locks held by smcrouted/4416. [ 1256.310251][ T4416] [ 1256.310251][ T4416] stack backtrace: [ 1256.310472][ T4416] CPU: 3 UID: 0 PID: 4416 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1256.310737][ T4416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1256.310928][ T4416] Call Trace: [ 1256.311048][ T4416] [ 1256.311130][ T4416] dump_stack_lvl+0xb0/0xd0 [ 1256.311305][ T4416] lockdep_rcu_suspicious+0x1ea/0x280 [ 1256.311467][ T4416] ip6mr_get_table+0x142/0x190 [ 1256.311627][ T4416] ip6_mroute_setsockopt+0x185/0x12d0 [ 1256.311784][ T4416] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1256.311983][ T4416] ? __lock_release+0x103/0x460 [ 1256.312142][ T4416] ? __might_fault+0x11b/0x170 [ 1256.312314][ T4416] ? trace_lock_acquire+0x14d/0x1f0 [ 1256.312481][ T4416] ? __might_fault+0xc3/0x170 [ 1256.312634][ T4416] ? lock_acquire+0x32/0xc0 [ 1256.312787][ T4416] ? __might_fault+0xc3/0x170 [ 1256.312945][ T4416] ? __might_fault+0x11b/0x170 [ 1256.313110][ T4416] do_ipv6_setsockopt+0x705/0x34e0 [ 1256.313284][ T4416] ? __lock_release+0xf0/0x460 [ 1256.313543][ T4416] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1256.313788][ T4416] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1256.313982][ T4416] ? rcu_read_lock_any_held+0x43/0xb0 [ 1256.314134][ T4416] ? validate_chain+0x1fe/0xae0 [ 1256.314311][ T4416] ? is_bpf_text_address+0x67/0x120 [ 1256.314469][ T4416] ? __pfx_validate_chain+0x10/0x10 [ 1256.314623][ T4416] ? hlock_class+0x4e/0x130 [ 1256.314776][ T4416] ? mark_lock+0x38/0x3e0 [ 1256.314903][ T4416] ? __lock_acquire+0xb3f/0x1580 [ 1256.315061][ T4416] ? find_held_lock+0x2c/0x110 [ 1256.315218][ T4416] ? ipv6_setsockopt+0x7f/0xe0 [ 1256.315388][ T4416] ipv6_setsockopt+0x7f/0xe0 [ 1256.315556][ T4416] rawv6_setsockopt+0xb7/0x550 [ 1256.315711][ T4416] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1256.315863][ T4416] ? __lock_acquire+0xb3f/0x1580 [ 1256.316024][ T4416] ? kfree+0x2d/0x340 [ 1256.316145][ T4416] do_sock_setsockopt+0x149/0x3a0 [ 1256.316336][ T4416] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1256.316497][ T4416] ? __lock_release+0x103/0x460 [ 1256.316651][ T4416] ? fd_install+0x1d1/0x5a0 [ 1256.316807][ T4416] ? trace_lock_acquire+0x14d/0x1f0 [ 1256.316963][ T4416] ? fdget+0x52/0x1e0 [ 1256.317082][ T4416] __sys_setsockopt+0x104/0x1a0 [ 1256.317238][ T4416] ? __pfx___sys_setsockopt+0x10/0x10 [ 1256.317411][ T4416] ? __sys_socket+0x168/0x1e0 [ 1256.317572][ T4416] ? __pfx___sys_socket+0x10/0x10 [ 1256.317726][ T4416] ? do_user_addr_fault+0x374/0xe30 [ 1256.317882][ T4416] __x64_sys_setsockopt+0xbd/0x160 [ 1256.318037][ T4416] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1256.318227][ T4416] do_syscall_64+0xc1/0x1d0 [ 1256.318430][ T4416] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1256.318623][ T4416] RIP: 0033:0x7fccf339791e [ 1256.318863][ T4416] 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 [ 1256.319711][ T4416] RSP: 002b:00007ffe22733928 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1256.320084][ T4416] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fccf339791e [ 1256.320462][ T4416] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1256.320863][ T4416] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000003a3be010 [ 1256.321234][ T4416] R10: 00007ffe2273394c R11: 0000000000000246 R12: 0000000000000000 [ 1256.321612][ T4416] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fccf349c000 [ 1256.322022][ T4416] [ 1256.327938][ T4416] veth0: entered allmulticast mode [ 1256.328464][ T4416] veth1: entered allmulticast mode [ 1256.328830][ T4416] veth2: entered allmulticast mode [ 1256.329138][ T4416] veth3: entered allmulticast mode [ 1256.329533][ T4416] veth4: entered allmulticast mode [ 1256.329985][ T4416] veth5: entered allmulticast mode [ 1267.099380][ T4502] GACT probability NOT on [ 1283.418195][ T4416] veth0: left allmulticast mode [ 1283.418519][ T4416] veth1: left allmulticast mode [ 1283.418743][ T4416] veth2: left allmulticast mode [ 1283.418962][ T4416] veth3: left allmulticast mode [ 1283.419185][ T4416] veth4: left allmulticast mode [ 1283.419416][ T4416] veth5: left allmulticast mode