[ 1886.135825][T12849] [ 1886.135963][T12849] ============================= [ 1886.136118][T12849] WARNING: suspicious RCU usage [ 1886.136281][T12849] 6.12.0-rc6-virtme #1 Not tainted [ 1886.136432][T12849] ----------------------------- [ 1886.136586][T12849] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1886.136808][T12849] [ 1886.136808][T12849] other info that might help us debug this: [ 1886.136808][T12849] [ 1886.137927][T12849] [ 1886.137927][T12849] rcu_scheduler_active = 2, debug_locks = 1 [ 1886.138152][T12849] no locks held by smcrouted/12849. [ 1886.138305][T12849] [ 1886.138305][T12849] stack backtrace: [ 1886.138497][T12849] CPU: 0 UID: 0 PID: 12849 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1886.138757][T12849] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1886.139085][T12849] Call Trace: [ 1886.139203][T12849] [ 1886.139285][T12849] dump_stack_lvl+0xb0/0xd0 [ 1886.139449][T12849] lockdep_rcu_suspicious+0x1ea/0x280 [ 1886.139606][T12849] ip6mr_get_table+0x142/0x190 [ 1886.139762][T12849] ip6_mroute_setsockopt+0x185/0x12d0 [ 1886.139917][T12849] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1886.140121][T12849] ? __lock_release+0x103/0x460 [ 1886.140273][T12849] ? __might_fault+0x11b/0x170 [ 1886.140435][T12849] ? trace_lock_acquire+0x14d/0x1f0 [ 1886.140590][T12849] ? __might_fault+0xc3/0x170 [ 1886.140756][T12849] ? lock_acquire+0x32/0xc0 [ 1886.140904][T12849] ? __might_fault+0xc3/0x170 [ 1886.141057][T12849] ? __might_fault+0x11b/0x170 [ 1886.141214][T12849] do_ipv6_setsockopt+0x705/0x34e0 [ 1886.141374][T12849] ? __lock_release+0xe0/0x460 [ 1886.141538][T12849] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1886.141690][T12849] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1886.141847][T12849] ? rcu_read_lock_any_held+0x43/0xb0 [ 1886.142001][T12849] ? validate_chain+0x1fe/0xae0 [ 1886.142157][T12849] ? is_bpf_text_address+0x67/0x120 [ 1886.142314][T12849] ? __pfx_validate_chain+0x10/0x10 [ 1886.142469][T12849] ? hlock_class+0x4e/0x130 [ 1886.142623][T12849] ? mark_lock+0x38/0x3e0 [ 1886.142743][T12849] ? __lock_acquire+0xb3f/0x1580 [ 1886.142926][T12849] ? find_held_lock+0x2c/0x110 [ 1886.143085][T12849] ? ipv6_setsockopt+0x7f/0xe0 [ 1886.143233][T12849] ipv6_setsockopt+0x7f/0xe0 [ 1886.143385][T12849] rawv6_setsockopt+0xb7/0x550 [ 1886.143539][T12849] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1886.143686][T12849] ? __lock_acquire+0xb3f/0x1580 [ 1886.143845][T12849] ? kfree+0x2d/0x340 [ 1886.143975][T12849] do_sock_setsockopt+0x149/0x3a0 [ 1886.144141][T12849] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1886.144311][T12849] ? __lock_release+0x103/0x460 [ 1886.144478][T12849] ? fd_install+0x1d1/0x5a0 [ 1886.144648][T12849] ? trace_lock_acquire+0x14d/0x1f0 [ 1886.144812][T12849] ? fdget+0x52/0x1e0 [ 1886.144941][T12849] __sys_setsockopt+0x104/0x1a0 [ 1886.145105][T12849] ? __pfx___sys_setsockopt+0x10/0x10 [ 1886.145270][T12849] ? __sys_socket+0x168/0x1e0 [ 1886.145443][T12849] ? __pfx___sys_socket+0x10/0x10 [ 1886.145612][T12849] __x64_sys_setsockopt+0xbd/0x160 [ 1886.145774][T12849] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1886.145973][T12849] do_syscall_64+0xc1/0x1d0 [ 1886.146143][T12849] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1886.146342][T12849] RIP: 0033:0x7f4fe42d991e [ 1886.146513][T12849] 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 [ 1886.147090][T12849] RSP: 002b:00007fff27130ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1886.147342][T12849] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4fe42d991e [ 1886.147621][T12849] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1886.147879][T12849] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1886.148120][T12849] R10: 00007fff27130b0c R11: 0000000000000246 R12: 0000000000000000 [ 1886.148364][T12849] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f4fe43de000 [ 1886.148620][T12849] [ 1886.159439][T12849] veth0: entered allmulticast mode [ 1886.160021][T12849] veth1: entered allmulticast mode [ 1886.160354][T12849] veth2: entered allmulticast mode [ 1886.160687][T12849] veth3: entered allmulticast mode [ 1886.161029][T12849] veth4: entered allmulticast mode [ 1886.161362][T12849] veth5: entered allmulticast mode [ 1932.595792][T12849] veth0: left allmulticast mode [ 1932.597162][T12849] veth1: left allmulticast mode [ 1932.597480][T12849] veth2: left allmulticast mode [ 1932.597715][T12849] veth3: left allmulticast mode [ 1932.597958][T12849] veth4: left allmulticast mode [ 1932.598197][T12849] veth5: left allmulticast mode