Bug 15

Summary: Kernel crash after "Detected Tx Unit Hang" report
Product: DPDK Reporter: batmanustc
Component: coreAssignee: dev
Status: CONFIRMED ---    
Severity: critical    
Priority: Normal    
Version: 17.11   
Target Milestone: ---   
Hardware: x86   
OS: Linux   

Description batmanustc 2018-02-06 14:28:45 CET 
How to produce: same step as bug(https://dpdk.org/tracker/show_bug.cgi?id=14)

kernel log:
Feb 06 19:01:40 yf-mos-test-net20 kernel: Detected Tx Unit Hang
                                            Tx Queue             <0>
                                            TDH, TDT             <0>, <6>
                                            next_to_use          <6>
                                            next_to_clean        <0>
                                          tx_buffer_info[next_to_clean]
                                            next_to_watch               <ffff8801a070c010>
                                            eop_desc->wb.status  <128280>
                                            time_stamp           <13079e940>
                                            jiffies              <13079ee06>
Feb 06 19:01:40 yf-mos-test-net20 ovs-vswitchdm[13237]: PMD: VF 0: disabling multicast promiscuous