[ 1724.726498][ T5372] [ 1724.726636][ T5372] ============================= [ 1724.726788][ T5372] WARNING: suspicious RCU usage [ 1724.726950][ T5372] 6.12.0-rc6-virtme #1 Not tainted [ 1724.727102][ T5372] ----------------------------- [ 1724.727258][ T5372] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1724.727612][ T5372] [ 1724.727612][ T5372] other info that might help us debug this: [ 1724.727612][ T5372] [ 1724.727935][ T5372] [ 1724.727935][ T5372] rcu_scheduler_active = 2, debug_locks = 1 [ 1724.728162][ T5372] no locks held by smcrouted/5372. [ 1724.728328][ T5372] [ 1724.728328][ T5372] stack backtrace: [ 1724.728609][ T5372] CPU: 3 UID: 0 PID: 5372 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1724.728898][ T5372] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1724.729265][ T5372] Call Trace: [ 1724.729399][ T5372] <TASK> [ 1724.729488][ T5372] dump_stack_lvl+0xb0/0xd0 [ 1724.729652][ T5372] lockdep_rcu_suspicious+0x1ea/0x280 [ 1724.729831][ T5372] ip6mr_get_table+0x142/0x190 [ 1724.730004][ T5372] ip6_mroute_setsockopt+0x185/0x12d0 [ 1724.730174][ T5372] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1724.730399][ T5372] ? __lock_release+0x103/0x460 [ 1724.730568][ T5372] ? __might_fault+0x11b/0x170 [ 1724.730755][ T5372] ? trace_lock_acquire+0x14d/0x1f0 [ 1724.730923][ T5372] ? __might_fault+0xc3/0x170 [ 1724.731111][ T5372] ? lock_acquire+0x32/0xc0 [ 1724.731274][ T5372] ? __might_fault+0xc3/0x170 [ 1724.731457][ T5372] ? __might_fault+0x11b/0x170 [ 1724.731627][ T5372] do_ipv6_setsockopt+0x705/0x34e0 [ 1724.731815][ T5372] ? __lock_release+0xe0/0x460 [ 1724.731995][ T5372] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1724.732164][ T5372] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1724.732344][ T5372] ? rcu_read_lock_any_held+0x43/0xb0 [ 1724.732521][ T5372] ? validate_chain+0x1fe/0xae0 [ 1724.732689][ T5372] ? is_bpf_text_address+0x67/0x120 [ 1724.732877][ T5372] ? __pfx_validate_chain+0x10/0x10 [ 1724.733046][ T5372] ? hlock_class+0x4e/0x130 [ 1724.733211][ T5372] ? mark_lock+0x38/0x3e0 [ 1724.733339][ T5372] ? __lock_acquire+0xb3f/0x1580 [ 1724.733535][ T5372] ? find_held_lock+0x2c/0x110 [ 1724.733710][ T5372] ? ipv6_setsockopt+0x7f/0xe0 [ 1724.733873][ T5372] ipv6_setsockopt+0x7f/0xe0 [ 1724.734037][ T5372] rawv6_setsockopt+0xb7/0x550 [ 1724.734206][ T5372] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1724.734404][ T5372] ? __lock_acquire+0xb3f/0x1580 [ 1724.734580][ T5372] ? kfree+0x2d/0x340 [ 1724.734714][ T5372] do_sock_setsockopt+0x149/0x3a0 [ 1724.734903][ T5372] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1724.735066][ T5372] ? __lock_release+0x103/0x460 [ 1724.735252][ T5372] ? fd_install+0x1d1/0x5a0 [ 1724.735422][ T5372] ? trace_lock_acquire+0x14d/0x1f0 [ 1724.735606][ T5372] ? fdget+0x52/0x1e0 [ 1724.735734][ T5372] __sys_setsockopt+0x104/0x1a0 [ 1724.735928][ T5372] ? __pfx___sys_setsockopt+0x10/0x10 [ 1724.736095][ T5372] ? __sys_socket+0x168/0x1e0 [ 1724.736292][ T5372] ? __pfx___sys_socket+0x10/0x10 [ 1724.736459][ T5372] __x64_sys_setsockopt+0xbd/0x160 [ 1724.736640][ T5372] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1724.736841][ T5372] do_syscall_64+0xc1/0x1d0 [ 1724.737011][ T5372] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1724.737220][ T5372] RIP: 0033:0x7f4b351ea91e [ 1724.737396][ T5372] 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 [ 1724.737974][ T5372] RSP: 002b:00007ffd2ad60008 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1724.738232][ T5372] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4b351ea91e [ 1724.738477][ T5372] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1724.738721][ T5372] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1724.738971][ T5372] R10: 00007ffd2ad6002c R11: 0000000000000246 R12: 0000000000000000 [ 1724.739222][ T5372] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f4b352ef000 [ 1724.739481][ T5372] </TASK> [ 1724.746850][ T5372] veth0: entered allmulticast mode [ 1724.747414][ T5372] veth1: entered allmulticast mode [ 1724.747737][ T5372] veth2: entered allmulticast mode [ 1724.748060][ T5372] veth3: entered allmulticast mode [ 1724.748394][ T5372] veth4: entered allmulticast mode [ 1724.748738][ T5372] veth5: entered allmulticast mode [ 1771.342366][ T5372] veth0: left allmulticast mode [ 1771.342697][ T5372] veth1: left allmulticast mode [ 1771.342964][ T5372] veth2: left allmulticast mode [ 1771.343194][ T5372] veth3: left allmulticast mode [ 1771.343443][ T5372] veth4: left allmulticast mode [ 1771.343674][ T5372] veth5: left allmulticast mode