[ 513.989623][ T2860] netem: version 1.3 [ 3086.329590][T18872] pm_nl_ctl (18872) used greatest stack depth: 22256 bytes left [ 3088.709291][T18903] [ 3088.709578][T18903] ============================= [ 3088.709743][T18903] WARNING: suspicious RCU usage [ 3088.709906][T18903] 6.12.0-rc4-virtme #1 Not tainted [ 3088.710066][T18903] ----------------------------- [ 3088.710536][T18903] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 3088.710810][T18903] [ 3088.710810][T18903] other info that might help us debug this: [ 3088.710810][T18903] [ 3088.711126][T18903] [ 3088.711126][T18903] rcu_scheduler_active = 2, debug_locks = 1 [ 3088.712128][T18903] 1 lock held by iptables/18903: [ 3088.712372][T18903] #0: ffff888005a250c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 3088.712775][T18903] [ 3088.712775][T18903] stack backtrace: [ 3088.712975][T18903] CPU: 0 UID: 0 PID: 18903 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 3088.713254][T18903] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3088.713609][T18903] Call Trace: [ 3088.713739][T18903] [ 3088.713829][T18903] dump_stack_lvl+0xb0/0xd0 [ 3088.714006][T18903] lockdep_rcu_suspicious+0x1ea/0x280 [ 3088.714178][T18903] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 3088.714400][T18903] nf_tables_delrule+0x417/0xc90 [nf_tables] [ 3088.714621][T18903] ? __lock_release+0x103/0x460 [ 3088.714785][T18903] ? net_generic+0xb1/0x1f0 [ 3088.714948][T18903] ? __pfx_nf_tables_delrule+0x10/0x10 [nf_tables] [ 3088.715180][T18903] ? trace_lock_acquire+0x14d/0x1f0 [ 3088.715353][T18903] ? __nla_validate_parse+0x1bc/0x3d0 [ 3088.715527][T18903] nfnetlink_rcv_batch+0x83b/0x1560 [ 3088.715699][T18903] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 3088.715872][T18903] ? rcu_read_lock_any_held+0x7e/0xb0 [ 3088.716029][T18903] ? find_stack+0xbc/0x140 [ 3088.716194][T18903] ? rcu_read_lock_any_held+0x43/0xb0 [ 3088.716351][T18903] ? validate_chain+0x1fe/0xae0 [ 3088.716523][T18903] ? __pfx_validate_chain+0x10/0x10 [ 3088.716690][T18903] ? __lock_acquire+0xb3f/0x1580 [ 3088.716856][T18903] ? __pfx_validate_nla+0x10/0x10 [ 3088.717020][T18903] ? find_held_lock+0x2c/0x110 [ 3088.717190][T18903] ? __nla_validate_parse+0x1bc/0x3d0 [ 3088.717356][T18903] nfnetlink_rcv+0x2c9/0x340 [ 3088.717515][T18903] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 3088.717678][T18903] ? netlink_deliver_tap+0xc3/0x340 [ 3088.717842][T18903] netlink_unicast+0x44b/0x710 [ 3088.718007][T18903] ? __pfx_netlink_unicast+0x10/0x10 [ 3088.718168][T18903] ? find_held_lock+0x2c/0x110 [ 3088.718331][T18903] netlink_sendmsg+0x723/0xbe0 [ 3088.718494][T18903] ? __pfx_netlink_sendmsg+0x10/0x10 [ 3088.718658][T18903] ? __might_fault+0xc3/0x170 [ 3088.718822][T18903] ? __import_iovec+0x35d/0x5d0 [ 3088.718990][T18903] ____sys_sendmsg+0x7ac/0xa10 [ 3088.719156][T18903] ? __pfx_____sys_sendmsg+0x10/0x10 [ 3088.719314][T18903] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 3088.719523][T18903] ? sk_setsockopt+0x9e3/0x2cc0 [ 3088.719684][T18903] ? __local_bh_enable_ip+0xa6/0x120 [ 3088.719849][T18903] ___sys_sendmsg+0xee/0x170 [ 3088.720023][T18903] ? __pfx____sys_sendmsg+0x10/0x10 [ 3088.720187][T18903] ? __lock_acquire+0xb3f/0x1580 [ 3088.720348][T18903] ? hlock_class+0x12/0x130 [ 3088.720506][T18903] ? trace_kfree+0x2d/0xd0 [ 3088.720669][T18903] ? kfree+0x2d/0x340 [ 3088.720797][T18903] ? do_sock_setsockopt+0x15b/0x3a0 [ 3088.720959][T18903] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 3088.721125][T18903] ? fdget+0x52/0x1e0 [ 3088.721256][T18903] __sys_sendmsg+0xcd/0x170 [ 3088.721422][T18903] ? __pfx___sys_sendmsg+0x10/0x10 [ 3088.721580][T18903] ? __sys_setsockopt+0x104/0x1a0 [ 3088.721741][T18903] ? __pfx___sys_setsockopt+0x10/0x10 [ 3088.721916][T18903] do_syscall_64+0xc1/0x1d0 [ 3088.722088][T18903] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 3088.722291][T18903] RIP: 0033:0x7f8b418537b7 [ 3088.722460][T18903] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 3088.723014][T18903] RSP: 002b:00007fffd118ca38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3088.723256][T18903] RAX: ffffffffffffffda RBX: 00007fffd118ca40 RCX: 00007f8b418537b7 [ 3088.723500][T18903] RDX: 0000000000000000 RSI: 00007fffd118dad0 RDI: 0000000000000005 [ 3088.723735][T18903] RBP: 00007fffd118e0d0 R08: 0000000000000004 R09: 0000000000000000 [ 3088.723975][T18903] R10: 00007fffd118dabc R11: 0000000000000246 R12: 0000000000004000 [ 3088.724210][T18903] R13: 0000000000000001 R14: 00007fffd118ca50 R15: 00007fffd118e0f0 [ 3088.724458][T18903]