[ 10.272688][ T249] ip (249) used greatest stack depth: 23696 bytes left [ 11.237547][ T280] [ 11.237680][ T280] ============================= [ 11.237870][ T280] WARNING: suspicious RCU usage [ 11.238119][ T280] 6.12.0-rc7-virtme #1 Not tainted [ 11.238943][ T280] ----------------------------- [ 11.239201][ T280] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 11.239599][ T280] [ 11.239599][ T280] other info that might help us debug this: [ 11.239599][ T280] [ 11.240027][ T280] [ 11.240027][ T280] rcu_scheduler_active = 2, debug_locks = 1 [ 11.240382][ T280] no locks held by smcrouted/280. [ 11.240647][ T280] [ 11.240647][ T280] stack backtrace: [ 11.240965][ T280] CPU: 3 UID: 0 PID: 280 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 11.241389][ T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.241707][ T280] Call Trace: [ 11.241908][ T280] [ 11.242056][ T280] dump_stack_lvl+0xb0/0xd0 [ 11.242344][ T280] lockdep_rcu_suspicious+0x1ea/0x280 [ 11.242611][ T280] ip6mr_get_table+0x142/0x190 [ 11.242878][ T280] ip6_mroute_setsockopt+0x185/0x12d0 [ 11.243149][ T280] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 11.243497][ T280] ? __lock_release+0x103/0x460 [ 11.243768][ T280] ? __might_fault+0x11b/0x170 [ 11.244031][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.244308][ T280] ? __might_fault+0xc3/0x170 [ 11.244578][ T280] ? lock_acquire+0x32/0xc0 [ 11.244849][ T280] ? __might_fault+0xc3/0x170 [ 11.245120][ T280] ? __might_fault+0x11b/0x170 [ 11.245401][ T280] do_ipv6_setsockopt+0x705/0x34e0 [ 11.245667][ T280] ? __lock_release+0x10/0x460 [ 11.245897][ T280] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 11.246145][ T280] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.246412][ T280] ? rcu_read_lock_any_held+0x43/0xb0 [ 11.246684][ T280] ? validate_chain+0x1fe/0xae0 [ 11.246945][ T280] ? is_bpf_text_address+0x67/0x120 [ 11.247217][ T280] ? __pfx_validate_chain+0x10/0x10 [ 11.247482][ T280] ? hlock_class+0x4e/0x130 [ 11.247747][ T280] ? mark_lock+0x38/0x3e0 [ 11.247955][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.248236][ T280] ? find_held_lock+0x2c/0x110 [ 11.248516][ T280] ? ipv6_setsockopt+0x7f/0xe0 [ 11.248782][ T280] ipv6_setsockopt+0x7f/0xe0 [ 11.249046][ T280] rawv6_setsockopt+0xb7/0x550 [ 11.249285][ T280] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 11.249542][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.249815][ T280] ? kfree+0x2d/0x340 [ 11.250033][ T280] do_sock_setsockopt+0x149/0x3a0 [ 11.250299][ T280] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 11.250560][ T280] ? __lock_release+0x103/0x460 [ 11.250826][ T280] ? fd_install+0x1d1/0x5a0 [ 11.251097][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.251362][ T280] ? fdget+0x52/0x1e0 [ 11.251566][ T280] __sys_setsockopt+0x104/0x1a0 [ 11.251826][ T280] ? __pfx___sys_setsockopt+0x10/0x10 [ 11.252091][ T280] ? __sys_socket+0x168/0x1e0 [ 11.252335][ T280] ? __pfx___sys_socket+0x10/0x10 [ 11.252541][ T280] ? do_user_addr_fault+0x374/0xe30 [ 11.252749][ T280] __x64_sys_setsockopt+0xbd/0x160 [ 11.252948][ T280] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.253206][ T280] do_syscall_64+0xc1/0x1d0 [ 11.253413][ T280] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.253661][ T280] RIP: 0033:0x7f47e847691e [ 11.253876][ T280] 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 [ 11.254598][ T280] RSP: 002b:00007ffd779c6fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 11.254910][ T280] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f47e847691e [ 11.255216][ T280] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 11.255517][ T280] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 11.255819][ T280] R10: 00007ffd779c6fec R11: 0000000000000246 R12: 0000000000000000 [ 11.256122][ T280] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f47e857b000 [ 11.256445][ T280] [ 11.260987][ T280] veth0: entered allmulticast mode [ 11.264744][ T280] veth1: entered allmulticast mode [ 11.265298][ T280] veth2: entered allmulticast mode [ 11.265966][ T280] veth3: entered allmulticast mode [ 23.023874][ T367] GACT probability NOT on [ 29.906004][ T280] veth0: left allmulticast mode [ 29.906832][ T280] veth1: left allmulticast mode [ 29.907099][ T280] veth2: left allmulticast mode [ 29.907370][ T280] veth3: left allmulticast mode