[ 1886.206843][T11197] [ 1886.206961][T11197] ============================= [ 1886.207109][T11197] WARNING: suspicious RCU usage [ 1886.207291][T11197] 6.12.0-rc6-virtme #1 Not tainted [ 1886.207942][T11197] ----------------------------- [ 1886.208096][T11197] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1886.208345][T11197] [ 1886.208345][T11197] other info that might help us debug this: [ 1886.208345][T11197] [ 1886.208659][T11197] [ 1886.208659][T11197] rcu_scheduler_active = 2, debug_locks = 1 [ 1886.208904][T11197] no locks held by smcrouted/11197. [ 1886.209059][T11197] [ 1886.209059][T11197] stack backtrace: [ 1886.209279][T11197] CPU: 2 UID: 0 PID: 11197 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1886.209539][T11197] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1886.209906][T11197] Call Trace: [ 1886.210024][T11197] [ 1886.210106][T11197] dump_stack_lvl+0xb0/0xd0 [ 1886.210274][T11197] lockdep_rcu_suspicious+0x1ea/0x280 [ 1886.210432][T11197] ip6mr_get_table+0x142/0x190 [ 1886.210591][T11197] ip6_mroute_setsockopt+0x185/0x12d0 [ 1886.210743][T11197] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1886.210934][T11197] ? __lock_release+0x103/0x460 [ 1886.211081][T11197] ? __might_fault+0x11b/0x170 [ 1886.211232][T11197] ? trace_lock_acquire+0x14d/0x1f0 [ 1886.211393][T11197] ? __might_fault+0xc3/0x170 [ 1886.211541][T11197] ? lock_acquire+0x32/0xc0 [ 1886.211691][T11197] ? __might_fault+0xc3/0x170 [ 1886.211842][T11197] ? __might_fault+0x11b/0x170 [ 1886.211994][T11197] do_ipv6_setsockopt+0x705/0x34e0 [ 1886.212145][T11197] ? __lock_release+0xe0/0x460 [ 1886.212294][T11197] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1886.212441][T11197] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1886.212595][T11197] ? rcu_read_lock_any_held+0x43/0xb0 [ 1886.212745][T11197] ? validate_chain+0x1fe/0xae0 [ 1886.212894][T11197] ? is_bpf_text_address+0x67/0x120 [ 1886.213048][T11197] ? __pfx_validate_chain+0x10/0x10 [ 1886.213196][T11197] ? hlock_class+0x4e/0x130 [ 1886.213342][T11197] ? mark_lock+0x38/0x3e0 [ 1886.213458][T11197] ? __lock_acquire+0xb3f/0x1580 [ 1886.213720][T11197] ? find_held_lock+0x2c/0x110 [ 1886.213885][T11197] ? ipv6_setsockopt+0x7f/0xe0 [ 1886.214038][T11197] ipv6_setsockopt+0x7f/0xe0 [ 1886.214191][T11197] rawv6_setsockopt+0xb7/0x550 [ 1886.214343][T11197] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1886.214497][T11197] ? __lock_acquire+0xb3f/0x1580 [ 1886.214649][T11197] ? kfree+0x2d/0x340 [ 1886.214769][T11197] do_sock_setsockopt+0x149/0x3a0 [ 1886.214918][T11197] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1886.215066][T11197] ? __lock_release+0x103/0x460 [ 1886.215213][T11197] ? fd_install+0x1d1/0x5a0 [ 1886.215367][T11197] ? trace_lock_acquire+0x14d/0x1f0 [ 1886.215518][T11197] ? fdget+0x52/0x1e0 [ 1886.215635][T11197] __sys_setsockopt+0x104/0x1a0 [ 1886.215787][T11197] ? __pfx___sys_setsockopt+0x10/0x10 [ 1886.215937][T11197] ? __sys_socket+0x168/0x1e0 [ 1886.216087][T11197] ? __pfx___sys_socket+0x10/0x10 [ 1886.216242][T11197] __x64_sys_setsockopt+0xbd/0x160 [ 1886.216394][T11197] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1886.216578][T11197] do_syscall_64+0xc1/0x1d0 [ 1886.216734][T11197] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1886.216920][T11197] RIP: 0033:0x7fa4f9c5d91e [ 1886.217078][T11197] 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 [ 1886.217599][T11197] RSP: 002b:00007fffb05cc218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1886.217830][T11197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4f9c5d91e [ 1886.218047][T11197] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1886.218263][T11197] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1886.218500][T11197] R10: 00007fffb05cc23c R11: 0000000000000246 R12: 0000000000000000 [ 1886.218718][T11197] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fa4f9d62000 [ 1886.218953][T11197] [ 1886.225196][T11197] veth0: entered allmulticast mode [ 1886.227222][T11197] veth1: entered allmulticast mode [ 1886.227540][T11197] veth2: entered allmulticast mode [ 1886.227857][T11197] veth3: entered allmulticast mode [ 1886.228157][T11197] veth4: entered allmulticast mode [ 1886.228457][T11197] veth5: entered allmulticast mode [ 1932.363239][T11197] veth0: left allmulticast mode [ 1932.363558][T11197] veth1: left allmulticast mode [ 1932.363823][T11197] veth2: left allmulticast mode [ 1932.364054][T11197] veth3: left allmulticast mode [ 1932.364281][T11197] veth4: left allmulticast mode [ 1932.364517][T11197] veth5: left allmulticast mode