[ 1724.978829][T10425] [ 1724.978977][T10425] ============================= [ 1724.979169][T10425] WARNING: suspicious RCU usage [ 1724.979335][T10425] 6.12.0-rc6-virtme #1 Not tainted [ 1724.979514][T10425] ----------------------------- [ 1724.979667][T10425] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1724.979929][T10425] [ 1724.979929][T10425] other info that might help us debug this: [ 1724.979929][T10425] [ 1724.980272][T10425] [ 1724.980272][T10425] rcu_scheduler_active = 2, debug_locks = 1 [ 1724.980509][T10425] no locks held by smcrouted/10425. [ 1724.980672][T10425] [ 1724.980672][T10425] stack backtrace: [ 1724.980894][T10425] CPU: 3 UID: 0 PID: 10425 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1724.981175][T10425] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1724.981538][T10425] Call Trace: [ 1724.981685][T10425] [ 1724.981772][T10425] dump_stack_lvl+0xb0/0xd0 [ 1724.981947][T10425] lockdep_rcu_suspicious+0x1ea/0x280 [ 1724.982114][T10425] ip6mr_get_table+0x142/0x190 [ 1724.982295][T10425] ip6_mroute_setsockopt+0x185/0x12d0 [ 1724.982457][T10425] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1724.982679][T10425] ? __lock_release+0x103/0x460 [ 1724.982847][T10425] ? __might_fault+0x11b/0x170 [ 1724.983005][T10425] ? trace_lock_acquire+0x14d/0x1f0 [ 1724.983182][T10425] ? __might_fault+0xc3/0x170 [ 1724.983337][T10425] ? lock_acquire+0x32/0xc0 [ 1724.983496][T10425] ? __might_fault+0xc3/0x170 [ 1724.983652][T10425] ? __might_fault+0x11b/0x170 [ 1724.983812][T10425] do_ipv6_setsockopt+0x705/0x34e0 [ 1724.983972][T10425] ? __lock_release+0xe0/0x460 [ 1724.984127][T10425] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1724.984291][T10425] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1724.984451][T10425] ? rcu_read_lock_any_held+0x43/0xb0 [ 1724.984617][T10425] ? validate_chain+0x1fe/0xae0 [ 1724.984770][T10425] ? is_bpf_text_address+0x67/0x120 [ 1724.984938][T10425] ? __pfx_validate_chain+0x10/0x10 [ 1724.985094][T10425] ? hlock_class+0x4e/0x130 [ 1724.985250][T10425] ? mark_lock+0x38/0x3e0 [ 1724.985375][T10425] ? __lock_acquire+0xb3f/0x1580 [ 1724.985538][T10425] ? find_held_lock+0x2c/0x110 [ 1724.985704][T10425] ? ipv6_setsockopt+0x7f/0xe0 [ 1724.985880][T10425] ipv6_setsockopt+0x7f/0xe0 [ 1724.986036][T10425] rawv6_setsockopt+0xb7/0x550 [ 1724.986193][T10425] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1724.986345][T10425] ? __lock_acquire+0xb3f/0x1580 [ 1724.986510][T10425] ? kfree+0x2d/0x340 [ 1724.986632][T10425] do_sock_setsockopt+0x149/0x3a0 [ 1724.986785][T10425] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1724.986942][T10425] ? __lock_release+0x103/0x460 [ 1724.987097][T10425] ? fd_install+0x1d1/0x5a0 [ 1724.987260][T10425] ? trace_lock_acquire+0x14d/0x1f0 [ 1724.987413][T10425] ? fdget+0x52/0x1e0 [ 1724.987535][T10425] __sys_setsockopt+0x104/0x1a0 [ 1724.987689][T10425] ? __pfx___sys_setsockopt+0x10/0x10 [ 1724.987840][T10425] ? __sys_socket+0x168/0x1e0 [ 1724.987998][T10425] ? __pfx___sys_socket+0x10/0x10 [ 1724.988172][T10425] __x64_sys_setsockopt+0xbd/0x160 [ 1724.988345][T10425] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1724.988564][T10425] do_syscall_64+0xc1/0x1d0 [ 1724.988727][T10425] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1724.988939][T10425] RIP: 0033:0x7f856139f91e [ 1724.989101][T10425] 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 [ 1724.989669][T10425] RSP: 002b:00007ffc15fc2db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1724.989931][T10425] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f856139f91e [ 1724.990191][T10425] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1724.990439][T10425] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1724.990672][T10425] R10: 00007ffc15fc2ddc R11: 0000000000000246 R12: 0000000000000000 [ 1724.990918][T10425] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f85614a4000 [ 1724.991165][T10425] [ 1725.000305][T10425] veth0: entered allmulticast mode [ 1725.000910][T10425] veth1: entered allmulticast mode [ 1725.001261][T10425] veth2: entered allmulticast mode [ 1725.001565][T10425] veth3: entered allmulticast mode [ 1725.010843][T10425] veth4: entered allmulticast mode [ 1725.011211][T10425] veth5: entered allmulticast mode [ 1772.396154][T10425] veth0: left allmulticast mode [ 1772.396482][T10425] veth1: left allmulticast mode [ 1772.396744][T10425] veth2: left allmulticast mode [ 1772.397048][T10425] veth3: left allmulticast mode [ 1772.397326][T10425] veth4: left allmulticast mode [ 1772.397610][T10425] veth5: left allmulticast mode