[ 10.786507][ T263] ip (263) used greatest stack depth: 23952 bytes left [ 11.408258][ T280] [ 11.408465][ T280] ============================= [ 11.408672][ T280] WARNING: suspicious RCU usage [ 11.408868][ T280] 6.12.0-rc7-virtme #1 Not tainted [ 11.409072][ T280] ----------------------------- [ 11.409266][ T280] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 11.409581][ T280] [ 11.409581][ T280] other info that might help us debug this: [ 11.409581][ T280] [ 11.409986][ T280] [ 11.409986][ T280] rcu_scheduler_active = 2, debug_locks = 1 [ 11.410269][ T280] no locks held by smcrouted/280. [ 11.410561][ T280] [ 11.410561][ T280] stack backtrace: [ 11.410881][ T280] CPU: 2 UID: 0 PID: 280 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 11.411157][ T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.411388][ T280] Call Trace: [ 11.411536][ T280] [ 11.411633][ T280] dump_stack_lvl+0xb0/0xd0 [ 11.411845][ T280] lockdep_rcu_suspicious+0x1ea/0x280 [ 11.412038][ T280] ip6mr_get_table+0x142/0x190 [ 11.412226][ T280] ip6_mroute_setsockopt+0x185/0x12d0 [ 11.412413][ T280] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 11.412664][ T280] ? __lock_release+0x103/0x460 [ 11.412849][ T280] ? __might_fault+0x11b/0x170 [ 11.413034][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.413225][ T280] ? __might_fault+0xc3/0x170 [ 11.413408][ T280] ? lock_acquire+0x32/0xc0 [ 11.413592][ T280] ? __might_fault+0xc3/0x170 [ 11.413778][ T280] ? __might_fault+0x11b/0x170 [ 11.413968][ T280] do_ipv6_setsockopt+0x705/0x34e0 [ 11.414158][ T280] ? __lock_release+0x10/0x460 [ 11.414338][ T280] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 11.414519][ T280] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.414707][ T280] ? rcu_read_lock_any_held+0x43/0xb0 [ 11.414891][ T280] ? validate_chain+0x1fe/0xae0 [ 11.415072][ T280] ? is_bpf_text_address+0x67/0x120 [ 11.415262][ T280] ? __pfx_validate_chain+0x10/0x10 [ 11.415445][ T280] ? hlock_class+0x4e/0x130 [ 11.415629][ T280] ? mark_lock+0x38/0x3e0 [ 11.415775][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.415964][ T280] ? find_held_lock+0x2c/0x110 [ 11.416154][ T280] ? ipv6_setsockopt+0x7f/0xe0 [ 11.416338][ T280] ipv6_setsockopt+0x7f/0xe0 [ 11.416525][ T280] rawv6_setsockopt+0xb7/0x550 [ 11.416706][ T280] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 11.416885][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.417068][ T280] ? kfree+0x2d/0x340 [ 11.417218][ T280] do_sock_setsockopt+0x149/0x3a0 [ 11.417409][ T280] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 11.417592][ T280] ? __lock_release+0x103/0x460 [ 11.417776][ T280] ? fd_install+0x1d1/0x5a0 [ 11.417968][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.418160][ T280] ? fdget+0x52/0x1e0 [ 11.418307][ T280] __sys_setsockopt+0x104/0x1a0 [ 11.418497][ T280] ? __pfx___sys_setsockopt+0x10/0x10 [ 11.418680][ T280] ? __sys_socket+0x168/0x1e0 [ 11.418869][ T280] ? __pfx___sys_socket+0x10/0x10 [ 11.419054][ T280] ? do_user_addr_fault+0x374/0xe30 [ 11.419244][ T280] __x64_sys_setsockopt+0xbd/0x160 [ 11.419430][ T280] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.419656][ T280] do_syscall_64+0xc1/0x1d0 [ 11.419841][ T280] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.420067][ T280] RIP: 0033:0x7f1efa08891e [ 11.420258][ 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 [ 11.420880][ T280] RSP: 002b:00007ffdb0249f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 11.421158][ T280] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1efa08891e [ 11.421434][ T280] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 11.421709][ T280] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 11.421997][ T280] R10: 00007ffdb0249f8c R11: 0000000000000246 R12: 0000000000000000 [ 11.422268][ T280] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1efa18d000 [ 11.422558][ T280] [ 11.425316][ T280] veth0: entered allmulticast mode [ 11.426198][ T280] veth1: entered allmulticast mode [ 11.428234][ T280] veth2: entered allmulticast mode [ 11.428627][ T280] veth3: entered allmulticast mode [ 22.739630][ T367] GACT probability NOT on [ 29.695920][ T280] veth0: left allmulticast mode [ 29.696233][ T280] veth1: left allmulticast mode [ 29.696484][ T280] veth2: left allmulticast mode [ 29.696730][ T280] veth3: left allmulticast mode