https://bugzilla.kernel.org/show_bug.cgi?id=67751 --- Comment #5 from Kashyap Chamarthy <kashyap.cv@xxxxxxxxx> --- I just saw this again when I attempt to restart OpenvSwitch with Kernel -- 3.16.0-0.rc1.git1.1.fc21.x86_64 --------------------- [ 9695.079715] [ 9695.080492] =============================== [ 9695.082559] [ INFO: suspicious RCU usage. ] [ 9695.085105] 3.16.0-0.rc1.git1.1.fc21.x86_64 #1 Not tainted [ 9695.088505] ------------------------------- [ 9695.090413] net/openvswitch/flow_table.c:255 suspicious rcu_dereference_protected() usage! [ 9695.094887] [ 9695.094887] other info that might help us debug this: [ 9695.094887] [ 9695.100722] [ 9695.100722] rcu_scheduler_active = 1, debug_locks = 0 [ 9695.105699] 1 lock held by ovs-vswitchd/1910: [ 9695.108199] #0: (cb_lock){++++++}, at: [<ffffffff816f5159>] genl_rcv+0x19/0x40 [ 9695.113083] [ 9695.113083] stack backtrace: [ 9695.115395] CPU: 0 PID: 1910 Comm: ovs-vswitchd Not tainted 3.16.0-0.rc1.git1.1.fc21.x86_64 #1 [ 9695.121638] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9695.124076] 0000000000000000 000000002c60696c ffff8800b64ff968 ffffffff81807520 [ 9695.127732] ffff88029ce24d70 ffff8800b64ff998 ffffffff810fd7f7 0000000000000000 [ 9695.131321] ffff88029ccc6d20 ffff8800b64ffa90 ffff88029ccc6d00 ffff8800b64ff9b8 [ 9695.134931] Call Trace: [ 9695.136158] [<ffffffff81807520>] dump_stack+0x4d/0x66 [ 9695.139031] [<ffffffff810fd7f7>] lockdep_rcu_suspicious+0xe7/0x120 [ 9695.141850] [<ffffffffa022abb0>] ovs_flow_tbl_destroy+0x60/0x70 [openvswitch] [ 9695.145034] [<ffffffffa02247b1>] ovs_dp_cmd_new+0x311/0x4b0 [openvswitch] [ 9695.148665] [<ffffffff816f621c>] genl_family_rcv_msg+0x1bc/0x3e0 [ 9695.152987] [<ffffffff81024369>] ? sched_clock+0x9/0x10 [ 9695.157925] [<ffffffff810e1afd>] ? sched_clock_local+0x1d/0x90 [ 9695.162486] [<ffffffff816f64c4>] genl_rcv_msg+0x84/0xc0 [ 9695.166797] [<ffffffff816f6440>] ? genl_family_rcv_msg+0x3e0/0x3e0 [ 9695.171411] [<ffffffff816f4b89>] netlink_rcv_skb+0xa9/0xd0 [ 9695.175809] [<ffffffff816f5168>] genl_rcv+0x28/0x40 [ 9695.179489] [<ffffffff816f4185>] netlink_unicast+0x125/0x1a0 [ 9695.184300] [<ffffffff816f455f>] netlink_sendmsg+0x35f/0x7d0 [ 9695.188510] [<ffffffff8169b57e>] sock_sendmsg+0x9e/0xe0 [ 9695.192580] [<ffffffff811f189e>] ? might_fault+0x5e/0xc0 [ 9695.196850] [<ffffffff811f18f9>] ? might_fault+0xb9/0xc0 [ 9695.200907] [<ffffffff811f189e>] ? might_fault+0x5e/0xc0 [ 9695.204862] [<ffffffff8169c5b8>] ___sys_sendmsg+0x408/0x420 [ 9695.208962] [<ffffffff8126ed5d>] ? __fget_light+0x13d/0x160 [ 9695.213088] [<ffffffff8126ed5d>] ? __fget_light+0x13d/0x160 [ 9695.217652] [<ffffffff8169cda1>] __sys_sendmsg+0x51/0x90 [ 9695.220513] [<ffffffff8169cdf2>] SyS_sendmsg+0x12/0x20 [ 9695.223422] [<ffffffff818110e9>] system_call_fastpath+0x16/0x1b --------------------- -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
