Sorry.This is not ovs‘s bug. 发件人: Linhaifeng 发送时间: 2018年6月21日 13:54 收件人: 'd...@openvswitch.org' <d...@openvswitch.org> 主题: 答复: [bug] ovs crash when call xlate_normal_flood
Or stop upcall thread before xlate_remove_ofproto in destruct. 发件人: Linhaifeng 发送时间: 2018年6月21日 13:49 收件人: 'd...@openvswitch.org' <d...@openvswitch.org<mailto:d...@openvswitch.org>> 主题: [bug] ovs crash when call xlate_normal_flood Should we use rwlock to use xbridge->xbundles? xbridge->xbundles may write in main thread and read in upcall thread. The crash stack as follow: #5 0x00000000004a04e8 in xlate_normal_flood (ctx=ctx@entry=0x7faeee7b6f30, in_xbundle=in_xbundle@entry=0x553d950, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2509 2509 in ofproto/ofproto_dpif_xlate.c (gdb) info locals xbundle = 0xffffffffffffffe8 (gdb) p xbundle->ofbundle Cannot access memory at address 0xfffffffffffffff8 (gdb) p in_xbundle->ofbundle $5 = (struct ofbundle *) 0x0 (gdb) p in_xbundle $6 = (struct xbundle *) 0x553d950 (gdb) p *in_xbundle $7 = {hmap_node = {hash = 0, next = 0x0}, ofbundle = 0x0, list_node = {prev = 0x0, next = 0x0}, xbridge = 0x0, xports = {prev = 0x0, next = 0x0}, name = 0x0, bond = 0x0, lacp = 0x0, vlan_mode = PORT_VLAN_ACCESS, vlan = 0, trunks = 0x0, use_priority_tags = false, floodable = false, protected = false, external_id = 0} (gdb) bt #0 0x00007fb05ea85197 in raise () from /usr/lib64/libc.so.6 #1 0x00007fb05ea86888 in abort () from /usr/lib64/libc.so.6 #2 0x000000000065e1e9 in PAT_abort () #3 0x000000000065b32d in patchIllInsHandler () #4 <signal handler called> #5 0x00000000004a04e8 in xlate_normal_flood (ctx=ctx@entry=0x7faeee7b6f30, in_xbundle=in_xbundle@entry=0x553d950, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2509 #6 0x00000000004a0e6e in xlate_normal (ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:2736 #7 xlate_output_action (ctx=ctx@entry=0x7faeee7b6f30, port=<optimized out>, max_len=<optimized out>, may_packet_in=may_packet_in@entry=true) at ofproto/ofproto_dpif_xlate.c:4312 #8 0x000000000049d240 in do_xlate_actions (ofpacts=<optimized out>, ofpacts_len=<optimized out>, ctx=ctx@entry=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:5262 #9 0x000000000049e410 in xlate_recursively (deepens=true, rule=0x6a4be00, ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:3587 #10 xlate_table_action (ctx=0x7faeee7b6f30, in_port=<optimized out>, table_id=<optimized out>, may_packet_in=<optimized out>, honor_table_miss=<optimized out>) at ofproto/ofproto_dpif_xlate.c:3654 #11 0x000000000049faf7 in compose_output_action__ (ctx=ctx@entry=0x7faeee7b6f30, ofp_port=<optimized out>, xr=<optimized out>, check_stp=check_stp@entry=true) at ofproto/ofproto_dpif_xlate.c:3317 #12 0x00000000004a0126 in compose_output_action (xr=<optimized out>, ofp_port=<optimized out>, ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:3567 #13 output_normal (ctx=ctx@entry=0x7faeee7b6f30, out_xbundle=out_xbundle@entry=0x3005770, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2113 #14 0x00000000004a0511 in xlate_normal_flood (ctx=ctx@entry=0x7faeee7b6f30, in_xbundle=in_xbundle@entry=0x3008a40, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2517 #15 0x00000000004a0e6e in xlate_normal (ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:2736 #16 xlate_output_action (ctx=ctx@entry=0x7faeee7b6f30, port=<optimized out>, max_len=<optimized out>, may_packet_in=may_packet_in@entry=true) at ofproto/ofproto_dpif_xlate.c:4312 #17 0x000000000049d240 in do_xlate_actions (ofpacts=<optimized out>, ofpacts_len=<optimized out>, ctx=ctx@entry=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:5262 #18 0x000000000049e410 in xlate_recursively (deepens=true, rule=0x6a32500, ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:3587 #19 xlate_table_action (ctx=0x7faeee7b6f30, in_port=<optimized out>, table_id=<optimized out>, may_packet_in=<optimized out>, honor_table_miss=<optimized out>) at ofproto/ofproto_dpif_xlate.c:3654 #20 0x000000000049faf7 in compose_output_action__ (ctx=ctx@entry=0x7faeee7b6f30, ofp_port=<optimized out>, xr=<optimized out>, check_stp=check_stp@entry=true) at ofproto/ofproto_dpif_xlate.c:3317 #21 0x00000000004a0126 in compose_output_action (xr=<optimized out>, ofp_port=<optimized out>, ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:3567 #22 output_normal (ctx=ctx@entry=0x7faeee7b6f30, out_xbundle=out_xbundle@entry=0x93e3e10, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2113 #23 0x00000000004a0511 in xlate_normal_flood (ctx=ctx@entry=0x7faeee7b6f30, in_xbundle=in_xbundle@entry=0x894de90, vlan=vlan@entry=0) at ofproto/ofproto_dpif_xlate.c:2517 #24 0x00000000004a0e6e in xlate_normal (ctx=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:2736 #25 xlate_output_action (ctx=ctx@entry=0x7faeee7b6f30, port=<optimized out>, max_len=<optimized out>, may_packet_in=may_packet_in@entry=true) at ofproto/ofproto_dpif_xlate.c:4312 #26 0x000000000049d240 in do_xlate_actions (ofpacts=<optimized out>, ofpacts_len=<optimized out>, ctx=ctx@entry=0x7faeee7b6f30) at ofproto/ofproto_dpif_xlate.c:5262 #27 0x00000000004a27df in xlate_actions (xin=xin@entry=0x7faeee7b8550, xout=xout@entry=0x7faeee7dd320) at ofproto/ofproto_dpif_xlate.c:6119 #28 0x00000000004959bb in upcall_xlate (wc=0x7faeee7dd378, odp_actions=0x7faeee7dd338, upcall=0x7faeee7dd2c0, udpif=0x1807190) at ofproto/ofproto_dpif_upcall.c:1185 #29 process_upcall (udpif=udpif@entry=0x1807190, upcall=upcall@entry=0x7faeee7dd2c0, odp_actions=odp_actions@entry=0x7faeee7dd338, wc=wc@entry=0x7faeee7dd378) at ofproto/ofproto_dpif_upcall.c:1322 #30 0x000000000049716c in recv_upcalls (handler=0x64775d0, handler=0x64775d0) at ofproto/ofproto_dpif_upcall.c:863 #31 0x000000000049764a in udpif_upcall_handler (arg=0x64775d0) at ofproto/ofproto_dpif_upcall.c:783 #32 0x00000000005388f8 in ovsthread_wrapper (aux_=<optimized out>) at lib/ovs_thread.c:682 #33 0x00007fb0601a8dc5 in start_thread () from /usr/lib64/libpthread.so.0 #34 0x00007fb05eb477bd in clone () from /usr/lib64/libc.so.6 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
