[ 10.770129][ T258] ip (258) used greatest stack depth: 24480 bytes left [ 11.433957][ T279] [ 11.434305][ T279] ============================= [ 11.434501][ T279] WARNING: suspicious RCU usage [ 11.434677][ T279] 6.12.0-rc7-virtme #1 Not tainted [ 11.434854][ T279] ----------------------------- [ 11.435027][ T279] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 11.435303][ T279] [ 11.435303][ T279] other info that might help us debug this: [ 11.435303][ T279] [ 11.435653][ T279] [ 11.435653][ T279] rcu_scheduler_active = 2, debug_locks = 1 [ 11.435917][ T279] no locks held by smcrouted/279. [ 11.436108][ T279] [ 11.436108][ T279] stack backtrace: [ 11.436323][ T279] CPU: 3 UID: 0 PID: 279 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 11.436613][ T279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.436833][ T279] Call Trace: [ 11.436968][ T279] [ 11.437062][ T279] dump_stack_lvl+0xb0/0xd0 [ 11.437250][ T279] lockdep_rcu_suspicious+0x1ea/0x280 [ 11.437430][ T279] ip6mr_get_table+0x142/0x190 [ 11.437626][ T279] ip6_mroute_setsockopt+0x185/0x12d0 [ 11.437802][ T279] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 11.438022][ T279] ? __lock_release+0x103/0x460 [ 11.438190][ T279] ? __might_fault+0x11b/0x170 [ 11.438365][ T279] ? trace_lock_acquire+0x14d/0x1f0 [ 11.438553][ T279] ? __might_fault+0xc3/0x170 [ 11.438737][ T279] ? lock_acquire+0x32/0xc0 [ 11.438903][ T279] ? __might_fault+0xc3/0x170 [ 11.439071][ T279] ? __might_fault+0x11b/0x170 [ 11.439257][ T279] do_ipv6_setsockopt+0x705/0x34e0 [ 11.439431][ T279] ? __lock_release+0x10/0x460 [ 11.439681][ T279] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 11.439945][ T279] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.440221][ T279] ? rcu_read_lock_any_held+0x43/0xb0 [ 11.440490][ T279] ? validate_chain+0x1fe/0xae0 [ 11.440675][ T279] ? is_bpf_text_address+0x67/0x120 [ 11.440855][ T279] ? __pfx_validate_chain+0x10/0x10 [ 11.441028][ T279] ? hlock_class+0x4e/0x130 [ 11.441197][ T279] ? mark_lock+0x38/0x3e0 [ 11.441337][ T279] ? __lock_acquire+0xb3f/0x1580 [ 11.441530][ T279] ? find_held_lock+0x2c/0x110 [ 11.441710][ T279] ? ipv6_setsockopt+0x7f/0xe0 [ 11.441888][ T279] ipv6_setsockopt+0x7f/0xe0 [ 11.442060][ T279] rawv6_setsockopt+0xb7/0x550 [ 11.442234][ T279] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 11.442403][ T279] ? __lock_acquire+0xb3f/0x1580 [ 11.442588][ T279] ? kfree+0x2d/0x340 [ 11.442724][ T279] do_sock_setsockopt+0x149/0x3a0 [ 11.442894][ T279] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 11.443068][ T279] ? __lock_release+0x103/0x460 [ 11.443241][ T279] ? fd_install+0x1d1/0x5a0 [ 11.443415][ T279] ? trace_lock_acquire+0x14d/0x1f0 [ 11.443601][ T279] ? fdget+0x52/0x1e0 [ 11.443734][ T279] __sys_setsockopt+0x104/0x1a0 [ 11.443909][ T279] ? __pfx___sys_setsockopt+0x10/0x10 [ 11.444081][ T279] ? __sys_socket+0x168/0x1e0 [ 11.444254][ T279] ? __pfx___sys_socket+0x10/0x10 [ 11.444429][ T279] __x64_sys_setsockopt+0xbd/0x160 [ 11.444610][ T279] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.444822][ T279] do_syscall_64+0xc1/0x1d0 [ 11.444993][ T279] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.445204][ T279] RIP: 0033:0x7fdebbeb491e [ 11.445389][ T279] 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 [ 11.445985][ T279] RSP: 002b:00007ffc48dbc2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 11.446245][ T279] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdebbeb491e [ 11.446515][ T279] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 11.446914][ T279] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 11.447167][ T279] R10: 00007ffc48dbc31c R11: 0000000000000246 R12: 0000000000000000 [ 11.447419][ T279] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fdebbfb9000 [ 11.447703][ T279] [ 11.451173][ T279] veth0: entered allmulticast mode [ 11.451883][ T279] veth1: entered allmulticast mode [ 11.452257][ T279] veth2: entered allmulticast mode [ 11.452584][ T279] veth3: entered allmulticast mode [ 22.909400][ T367] GACT probability NOT on [ 24.350385][ T399] tc (399) used greatest stack depth: 23544 bytes left [ 29.848720][ T279] veth0: left allmulticast mode [ 29.849057][ T279] veth1: left allmulticast mode [ 29.849323][ T279] veth2: left allmulticast mode [ 29.849567][ T279] veth3: left allmulticast mode