[ 1728.790944][ T9010] [ 1728.791093][ T9010] ============================= [ 1728.791276][ T9010] WARNING: suspicious RCU usage [ 1728.791443][ T9010] 6.12.0-rc6-virtme #1 Not tainted [ 1728.791605][ T9010] ----------------------------- [ 1728.791764][ T9010] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1728.791991][ T9010] [ 1728.791991][ T9010] other info that might help us debug this: [ 1728.791991][ T9010] [ 1728.792769][ T9010] [ 1728.792769][ T9010] rcu_scheduler_active = 2, debug_locks = 1 [ 1728.793006][ T9010] no locks held by smcrouted/9010. [ 1728.793168][ T9010] [ 1728.793168][ T9010] stack backtrace: [ 1728.793370][ T9010] CPU: 3 UID: 0 PID: 9010 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1728.793635][ T9010] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1728.793978][ T9010] Call Trace: [ 1728.794101][ T9010] [ 1728.794185][ T9010] dump_stack_lvl+0xb0/0xd0 [ 1728.794357][ T9010] lockdep_rcu_suspicious+0x1ea/0x280 [ 1728.794519][ T9010] ip6mr_get_table+0x142/0x190 [ 1728.794676][ T9010] ip6_mroute_setsockopt+0x185/0x12d0 [ 1728.794871][ T9010] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1728.795079][ T9010] ? __lock_release+0x103/0x460 [ 1728.795238][ T9010] ? __might_fault+0x11b/0x170 [ 1728.795390][ T9010] ? trace_lock_acquire+0x14d/0x1f0 [ 1728.795559][ T9010] ? __might_fault+0xc3/0x170 [ 1728.795708][ T9010] ? lock_acquire+0x32/0xc0 [ 1728.795872][ T9010] ? __might_fault+0xc3/0x170 [ 1728.796027][ T9010] ? __might_fault+0x11b/0x170 [ 1728.796184][ T9010] do_ipv6_setsockopt+0x705/0x34e0 [ 1728.796340][ T9010] ? __lock_release+0xe0/0x460 [ 1728.796491][ T9010] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1728.796670][ T9010] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1728.796885][ T9010] ? rcu_read_lock_any_held+0x43/0xb0 [ 1728.797039][ T9010] ? validate_chain+0x1fe/0xae0 [ 1728.797223][ T9010] ? is_bpf_text_address+0x67/0x120 [ 1728.797393][ T9010] ? __pfx_validate_chain+0x10/0x10 [ 1728.797545][ T9010] ? hlock_class+0x4e/0x130 [ 1728.797723][ T9010] ? mark_lock+0x38/0x3e0 [ 1728.797845][ T9010] ? __lock_acquire+0xb3f/0x1580 [ 1728.798022][ T9010] ? find_held_lock+0x2c/0x110 [ 1728.798190][ T9010] ? ipv6_setsockopt+0x7f/0xe0 [ 1728.798341][ T9010] ipv6_setsockopt+0x7f/0xe0 [ 1728.798518][ T9010] rawv6_setsockopt+0xb7/0x550 [ 1728.798673][ T9010] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1728.798835][ T9010] ? __lock_acquire+0xb3f/0x1580 [ 1728.799006][ T9010] ? kfree+0x2d/0x340 [ 1728.799127][ T9010] do_sock_setsockopt+0x149/0x3a0 [ 1728.799279][ T9010] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1728.799432][ T9010] ? __lock_release+0x103/0x460 [ 1728.799586][ T9010] ? fd_install+0x1d1/0x5a0 [ 1728.799742][ T9010] ? trace_lock_acquire+0x14d/0x1f0 [ 1728.799897][ T9010] ? fdget+0x52/0x1e0 [ 1728.800022][ T9010] __sys_setsockopt+0x104/0x1a0 [ 1728.800179][ T9010] ? __pfx___sys_setsockopt+0x10/0x10 [ 1728.800329][ T9010] ? __sys_socket+0x168/0x1e0 [ 1728.800485][ T9010] ? __pfx___sys_socket+0x10/0x10 [ 1728.800642][ T9010] __x64_sys_setsockopt+0xbd/0x160 [ 1728.800797][ T9010] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1728.800983][ T9010] do_syscall_64+0xc1/0x1d0 [ 1728.801332][ T9010] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1728.801517][ T9010] RIP: 0033:0x7f1e4b7e491e [ 1728.801769][ T9010] 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 [ 1728.802391][ T9010] RSP: 002b:00007ffe9a7d7778 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1728.802622][ T9010] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1e4b7e491e [ 1728.802851][ T9010] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1728.803077][ T9010] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1728.803385][ T9010] R10: 00007ffe9a7d779c R11: 0000000000000246 R12: 0000000000000000 [ 1728.803712][ T9010] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1e4b8e9000 [ 1728.803955][ T9010] [ 1728.810532][ T9010] veth0: entered allmulticast mode [ 1728.811101][ T9010] veth1: entered allmulticast mode [ 1728.811446][ T9010] veth2: entered allmulticast mode [ 1728.811771][ T9010] veth3: entered allmulticast mode [ 1728.812095][ T9010] veth4: entered allmulticast mode [ 1728.812422][ T9010] veth5: entered allmulticast mode [ 1775.737754][ T9010] veth0: left allmulticast mode [ 1775.738326][ T9010] veth1: left allmulticast mode [ 1775.738715][ T9010] veth2: left allmulticast mode [ 1775.739093][ T9010] veth3: left allmulticast mode [ 1775.739497][ T9010] veth4: left allmulticast mode [ 1775.739872][ T9010] veth5: left allmulticast mode