[ 1709.971738][ T9275] [ 1709.971889][ T9275] ============================= [ 1709.972106][ T9275] WARNING: suspicious RCU usage [ 1709.972320][ T9275] 6.12.0-rc6-virtme #1 Not tainted [ 1709.972504][ T9275] ----------------------------- [ 1709.972702][ T9275] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1709.972996][ T9275] [ 1709.972996][ T9275] other info that might help us debug this: [ 1709.972996][ T9275] [ 1709.973392][ T9275] [ 1709.973392][ T9275] rcu_scheduler_active = 2, debug_locks = 1 [ 1709.973682][ T9275] no locks held by smcrouted/9275. [ 1709.973872][ T9275] [ 1709.973872][ T9275] stack backtrace: [ 1709.974122][ T9275] CPU: 1 UID: 0 PID: 9275 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1709.974461][ T9275] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1709.974897][ T9275] Call Trace: [ 1709.975043][ T9275] [ 1709.975155][ T9275] dump_stack_lvl+0xb0/0xd0 [ 1709.975352][ T9275] lockdep_rcu_suspicious+0x1ea/0x280 [ 1709.975547][ T9275] ip6mr_get_table+0x142/0x190 [ 1709.975748][ T9275] ip6_mroute_setsockopt+0x185/0x12d0 [ 1709.975949][ T9275] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1709.976204][ T9275] ? __lock_release+0x103/0x460 [ 1709.976393][ T9275] ? __might_fault+0x11b/0x170 [ 1709.976605][ T9275] ? trace_lock_acquire+0x14d/0x1f0 [ 1709.976795][ T9275] ? __might_fault+0xc3/0x170 [ 1709.976982][ T9275] ? lock_acquire+0x32/0xc0 [ 1709.977160][ T9275] ? __might_fault+0xc3/0x170 [ 1709.977365][ T9275] ? __might_fault+0x11b/0x170 [ 1709.977551][ T9275] do_ipv6_setsockopt+0x705/0x34e0 [ 1709.977753][ T9275] ? __lock_release+0xe0/0x460 [ 1709.977939][ T9275] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1709.978141][ T9275] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1709.978333][ T9275] ? rcu_read_lock_any_held+0x43/0xb0 [ 1709.978515][ T9275] ? validate_chain+0x1fe/0xae0 [ 1709.978698][ T9275] ? is_bpf_text_address+0x67/0x120 [ 1709.978895][ T9275] ? __pfx_validate_chain+0x10/0x10 [ 1709.979078][ T9275] ? hlock_class+0x4e/0x130 [ 1709.979258][ T9275] ? mark_lock+0x38/0x3e0 [ 1709.979399][ T9275] ? __lock_acquire+0xb3f/0x1580 [ 1709.979586][ T9275] ? find_held_lock+0x2c/0x110 [ 1709.979775][ T9275] ? ipv6_setsockopt+0x7f/0xe0 [ 1709.979954][ T9275] ipv6_setsockopt+0x7f/0xe0 [ 1709.980133][ T9275] rawv6_setsockopt+0xb7/0x550 [ 1709.980315][ T9275] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1709.980491][ T9275] ? __lock_acquire+0xb3f/0x1580 [ 1709.980676][ T9275] ? kfree+0x2d/0x340 [ 1709.980820][ T9275] do_sock_setsockopt+0x149/0x3a0 [ 1709.981023][ T9275] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1709.981199][ T9275] ? __lock_release+0x103/0x460 [ 1709.981376][ T9275] ? fd_install+0x1d1/0x5a0 [ 1709.981559][ T9275] ? trace_lock_acquire+0x14d/0x1f0 [ 1709.981742][ T9275] ? fdget+0x52/0x1e0 [ 1709.981882][ T9275] __sys_setsockopt+0x104/0x1a0 [ 1709.982075][ T9275] ? __pfx___sys_setsockopt+0x10/0x10 [ 1709.982255][ T9275] ? __sys_socket+0x168/0x1e0 [ 1709.982434][ T9275] ? __pfx___sys_socket+0x10/0x10 [ 1709.982618][ T9275] __x64_sys_setsockopt+0xbd/0x160 [ 1709.982800][ T9275] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1709.983111][ T9275] do_syscall_64+0xc1/0x1d0 [ 1709.983301][ T9275] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1709.983550][ T9275] RIP: 0033:0x7f6a25c2f91e [ 1709.983741][ T9275] 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 [ 1709.984396][ T9275] RSP: 002b:00007fffe21ce678 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1709.984695][ T9275] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6a25c2f91e [ 1709.984984][ T9275] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1709.985264][ T9275] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1709.985536][ T9275] R10: 00007fffe21ce69c R11: 0000000000000246 R12: 0000000000000000 [ 1709.985823][ T9275] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f6a25d34000 [ 1709.986125][ T9275] [ 1709.992694][ T9275] veth0: entered allmulticast mode [ 1709.993345][ T9275] veth1: entered allmulticast mode [ 1709.993725][ T9275] veth2: entered allmulticast mode [ 1709.994073][ T9275] veth3: entered allmulticast mode [ 1709.994467][ T9275] veth4: entered allmulticast mode [ 1709.994839][ T9275] veth5: entered allmulticast mode [ 1756.149277][ T9275] veth0: left allmulticast mode [ 1756.149596][ T9275] veth1: left allmulticast mode [ 1756.149844][ T9275] veth2: left allmulticast mode [ 1756.150079][ T9275] veth3: left allmulticast mode [ 1756.150337][ T9275] veth4: left allmulticast mode [ 1756.150567][ T9275] veth5: left allmulticast mode