[ 1904.476488][T13228] [ 1904.476627][T13228] ============================= [ 1904.476787][T13228] WARNING: suspicious RCU usage [ 1904.476938][T13228] 6.12.0-rc4-virtme #1 Not tainted [ 1904.477111][T13228] ----------------------------- [ 1904.477261][T13228] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1904.477519][T13228] [ 1904.477519][T13228] other info that might help us debug this: [ 1904.477519][T13228] [ 1904.477805][T13228] [ 1904.477805][T13228] rcu_scheduler_active = 2, debug_locks = 1 [ 1904.478034][T13228] no locks held by smcrouted/13228. [ 1904.478180][T13228] [ 1904.478180][T13228] stack backtrace: [ 1904.478386][T13228] CPU: 2 UID: 0 PID: 13228 Comm: smcrouted Not tainted 6.12.0-rc4-virtme #1 [ 1904.478646][T13228] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1904.478978][T13228] Call Trace: [ 1904.479198][T13228] [ 1904.479300][T13228] dump_stack_lvl+0xb0/0xd0 [ 1904.479466][T13228] lockdep_rcu_suspicious+0x1ea/0x280 [ 1904.479622][T13228] ip6mr_get_table+0x142/0x190 [ 1904.479793][T13228] ip6_mroute_setsockopt+0x185/0x12d0 [ 1904.479950][T13228] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1904.480135][T13228] ? find_held_lock+0x2c/0x110 [ 1904.480293][T13228] ? __lock_release+0x103/0x460 [ 1904.480437][T13228] ? __might_fault+0x11b/0x170 [ 1904.480591][T13228] ? __pfx___lock_release+0x10/0x10 [ 1904.480735][T13228] ? trace_lock_acquire+0x14d/0x1f0 [ 1904.480882][T13228] ? __might_fault+0xc3/0x170 [ 1904.481034][T13228] ? lock_acquire+0x32/0xc0 [ 1904.481186][T13228] ? __might_fault+0xc3/0x170 [ 1904.481334][T13228] ? __might_fault+0x11b/0x170 [ 1904.481487][T13228] do_ipv6_setsockopt+0x705/0x34e0 [ 1904.481639][T13228] ? __lock_release+0xf0/0x460 [ 1904.481799][T13228] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1904.481946][T13228] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1904.482097][T13228] ? rcu_read_lock_any_held+0x43/0xb0 [ 1904.482260][T13228] ? validate_chain+0x1fe/0xae0 [ 1904.482407][T13228] ? is_bpf_text_address+0x67/0x120 [ 1904.482562][T13228] ? __pfx_validate_chain+0x10/0x10 [ 1904.482706][T13228] ? hlock_class+0x4e/0x130 [ 1904.482866][T13228] ? mark_lock+0x38/0x3e0 [ 1904.482983][T13228] ? __lock_acquire+0xb3f/0x1580 [ 1904.483138][T13228] ? find_held_lock+0x2c/0x110 [ 1904.483297][T13228] ? ipv6_setsockopt+0x7f/0xe0 [ 1904.483441][T13228] ipv6_setsockopt+0x7f/0xe0 [ 1904.483597][T13228] rawv6_setsockopt+0xb7/0x550 [ 1904.483746][T13228] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1904.483892][T13228] ? __lock_acquire+0xb3f/0x1580 [ 1904.484046][T13228] ? kfree+0x2d/0x340 [ 1904.484165][T13228] do_sock_setsockopt+0x149/0x3a0 [ 1904.484315][T13228] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1904.484463][T13228] ? __lock_release+0x103/0x460 [ 1904.484606][T13228] ? fd_install+0x1d1/0x5a0 [ 1904.484760][T13228] ? trace_lock_acquire+0x14d/0x1f0 [ 1904.484914][T13228] ? fdget+0x52/0x1e0 [ 1904.485038][T13228] __sys_setsockopt+0x104/0x1a0 [ 1904.485203][T13228] ? __pfx___sys_setsockopt+0x10/0x10 [ 1904.485358][T13228] ? __sys_socket+0x168/0x1e0 [ 1904.485509][T13228] ? __pfx___sys_socket+0x10/0x10 [ 1904.485657][T13228] ? do_user_addr_fault+0x374/0xe30 [ 1904.485818][T13228] __x64_sys_setsockopt+0xbd/0x160 [ 1904.485964][T13228] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1904.486148][T13228] do_syscall_64+0xc1/0x1d0 [ 1904.486302][T13228] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1904.486489][T13228] RIP: 0033:0x7fd2dab0f91e [ 1904.486655][T13228] 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 [ 1904.487167][T13228] RSP: 002b:00007ffcdc7550c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1904.487392][T13228] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd2dab0f91e [ 1904.487621][T13228] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1904.487845][T13228] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1904.488077][T13228] R10: 00007ffcdc7550ec R11: 0000000000000246 R12: 0000000000000000 [ 1904.488301][T13228] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd2dac14000 [ 1904.488532][T13228] [ 1904.493712][T13228] veth0: entered allmulticast mode [ 1904.494256][T13228] veth1: entered allmulticast mode [ 1904.494577][T13228] veth2: entered allmulticast mode [ 1904.494891][T13228] veth3: entered allmulticast mode [ 1904.495193][T13228] veth4: entered allmulticast mode [ 1904.495511][T13228] veth5: entered allmulticast mode [ 1950.244123][T13228] veth0: left allmulticast mode [ 1950.244592][T13228] veth1: left allmulticast mode [ 1950.244964][T13228] veth2: left allmulticast mode [ 1950.245355][T13228] veth3: left allmulticast mode [ 1950.245740][T13228] veth4: left allmulticast mode [ 1950.246161][T13228] veth5: left allmulticast mode