[ 3773.745526][ T30] kworker/2:0 (30) used greatest stack depth: 22816 bytes left [ 4117.373244][T27707] pm_nl_ctl (27707) used greatest stack depth: 22496 bytes left [ 4119.702327][T27738] [ 4119.702722][T27738] ============================= [ 4119.702881][T27738] WARNING: suspicious RCU usage [ 4119.703045][T27738] 6.12.0-rc4-virtme #1 Not tainted [ 4119.703205][T27738] ----------------------------- [ 4119.703377][T27738] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 4119.704079][T27738] [ 4119.704079][T27738] other info that might help us debug this: [ 4119.704079][T27738] [ 4119.704685][T27738] [ 4119.704685][T27738] rcu_scheduler_active = 2, debug_locks = 1 [ 4119.704918][T27738] 1 lock held by iptables/27738: [ 4119.705077][T27738] #0: ffff888010fde8c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 4119.705497][T27738] [ 4119.705497][T27738] stack backtrace: [ 4119.705691][T27738] CPU: 0 UID: 0 PID: 27738 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 4119.705963][T27738] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4119.706318][T27738] Call Trace: [ 4119.706443][T27738] [ 4119.706531][T27738] dump_stack_lvl+0xb0/0xd0 [ 4119.706700][T27738] lockdep_rcu_suspicious+0x1ea/0x280 [ 4119.706864][T27738] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 4119.707087][T27738] nf_tables_delrule+0x417/0xc90 [nf_tables] [ 4119.707306][T27738] ? __lock_release+0x103/0x460 [ 4119.707467][T27738] ? net_generic+0xb1/0x1f0 [ 4119.707626][T27738] ? __pfx_nf_tables_delrule+0x10/0x10 [nf_tables] [ 4119.707850][T27738] ? trace_lock_acquire+0x14d/0x1f0 [ 4119.708015][T27738] ? __nla_validate_parse+0x1bc/0x3d0 [ 4119.708182][T27738] nfnetlink_rcv_batch+0x83b/0x1560 [ 4119.708355][T27738] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 4119.708512][T27738] ? rcu_read_lock_any_held+0x7e/0xb0 [ 4119.708670][T27738] ? find_stack+0xbc/0x140 [ 4119.708832][T27738] ? rcu_read_lock_any_held+0x43/0xb0 [ 4119.708986][T27738] ? validate_chain+0x1fe/0xae0 [ 4119.709156][T27738] ? __pfx_validate_chain+0x10/0x10 [ 4119.709321][T27738] ? __lock_acquire+0xb3f/0x1580 [ 4119.709480][T27738] ? __pfx_validate_nla+0x10/0x10 [ 4119.709644][T27738] ? find_held_lock+0x2c/0x110 [ 4119.709805][T27738] ? __nla_validate_parse+0x1bc/0x3d0 [ 4119.709967][T27738] nfnetlink_rcv+0x2c9/0x340 [ 4119.710125][T27738] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 4119.710282][T27738] ? netlink_deliver_tap+0xc3/0x340 [ 4119.710443][T27738] netlink_unicast+0x44b/0x710 [ 4119.710603][T27738] ? __pfx_netlink_unicast+0x10/0x10 [ 4119.710760][T27738] ? find_held_lock+0x2c/0x110 [ 4119.710927][T27738] netlink_sendmsg+0x723/0xbe0 [ 4119.711088][T27738] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4119.711242][T27738] ? __might_fault+0xc3/0x170 [ 4119.711402][T27738] ? __import_iovec+0x35d/0x5d0 [ 4119.711567][T27738] ____sys_sendmsg+0x7ac/0xa10 [ 4119.711753][T27738] ? __pfx_____sys_sendmsg+0x10/0x10 [ 4119.711911][T27738] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 4119.712110][T27738] ? sk_setsockopt+0x9e3/0x2cc0 [ 4119.712270][T27738] ? __local_bh_enable_ip+0xa6/0x120 [ 4119.712432][T27738] ___sys_sendmsg+0xee/0x170 [ 4119.712591][T27738] ? __pfx____sys_sendmsg+0x10/0x10 [ 4119.712751][T27738] ? __lock_acquire+0xb3f/0x1580 [ 4119.712908][T27738] ? hlock_class+0x12/0x130 [ 4119.713063][T27738] ? trace_kfree+0x2d/0xd0 [ 4119.713223][T27738] ? kfree+0x2d/0x340 [ 4119.713348][T27738] ? do_sock_setsockopt+0x15b/0x3a0 [ 4119.713507][T27738] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 4119.713670][T27738] ? fdget+0x52/0x1e0 [ 4119.713797][T27738] __sys_sendmsg+0xcd/0x170 [ 4119.713953][T27738] ? __pfx___sys_sendmsg+0x10/0x10 [ 4119.714108][T27738] ? __sys_setsockopt+0x104/0x1a0 [ 4119.714268][T27738] ? __pfx___sys_setsockopt+0x10/0x10 [ 4119.714448][T27738] do_syscall_64+0xc1/0x1d0 [ 4119.714627][T27738] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4119.714827][T27738] RIP: 0033:0x7fa755a1f7b7 [ 4119.714992][T27738] 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 [ 4119.715538][T27738] RSP: 002b:00007fff811d3728 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 4119.715784][T27738] RAX: ffffffffffffffda RBX: 00007fff811d3730 RCX: 00007fa755a1f7b7 [ 4119.716023][T27738] RDX: 0000000000000000 RSI: 00007fff811d47c0 RDI: 0000000000000005 [ 4119.716262][T27738] RBP: 00007fff811d4dc0 R08: 0000000000000004 R09: 0000000000000000 [ 4119.716496][T27738] R10: 00007fff811d47ac R11: 0000000000000246 R12: 0000000000004000 [ 4119.716731][T27738] R13: 0000000000000001 R14: 00007fff811d3740 R15: 00007fff811d4de0 [ 4119.716983][T27738]