Dear all,
I am using ovs 2.14.1 and dpdk 20.08 on CentOS Linux release 8.3.2011
with kernel of 5.10.44 and glibc of 2.28. When I restart ovs-vswitchd many
times, it is observed that ovs-vswitchd is crashed. After some debugging I
found.
I have two ovs crash problems in context with DPDK. OVS process crashes when I
restart ovs-vswitchd
First stack trace:
#0 ofproto_dpif_credit_table_stats (ofproto=0x3629d20, table_id=0 '\000',
n_matches=195, n_misses=0)
at ofproto/ofproto-dpif.c:4350
#1 0x00000000010cbcac in xlate_push_stats_entry (entry=0x7fa270030588,
stats=0x7fff1ed2cac0, offloaded=)
at ofproto/ofproto-dpif-xlate-cache.c:99
#2 0x00000000010cbe7b in xlate_push_stats (xcache=,
stats=stats@entry=0x7fff1ed2cac0,
offloaded=offloaded@entry=false) at ofproto/ofproto-dpif-xlate-cache.c:181
#3 0x00000000010b8e27 in push_dp_ops (udpif=udpif@entry=0x36ace90,
ops=ops@entry=0x7fff1ed2cfd0, n_ops=n_ops@entry=1)
at ofproto/ofproto-dpif-upcall.c:2409
#4 0x00000000010b9c0e in push_dp_ops (n_ops=n_ops@entry=1, ops=0x7fff1ed2cfd0,
ops@entry=0x7fff1ed2b670,
udpif=udpif@entry=0x36ace90) at ofproto/ofproto-dpif-upcall.c:2441
#5 push_ukey_ops (udpif=udpif@entry=0x36ace90, umap=umap@entry=0x36b2288,
ops=ops@entry=0x7fff1ed2cfd0,
n_ops=n_ops@entry=1) at ofproto/ofproto-dpif-upcall.c:2441
#6 0x00000000010b9d8b in dp_purge_cb (aux=0x36ace90, pmd_id=25) at
ofproto/ofproto-dpif-upcall.c:2870
#7 0x00000000010eb476 in dp_netdev_del_pmd (dp=dp@entry=0x362b110,
pmd=pmd@entry=0x7fab57cd8010) at lib/dpif-netdev.c:6555
#8 0x00000000010edec7 in reconfigure_pmd_threads (dp=0x362b110) at
lib/dpif-netdev.c:5175
#9 reconfigure_datapath (dp=dp@entry=0x362b110) at lib/dpif-netdev.c:5266
#10 0x00000000010eedbd in do_del_port (dp=0x362b110, port=0x37798f0) at
lib/dpif-netdev.c:2287
#11 0x00000000010ef287 in dpif_netdev_port_del (dpif=, port_no=27) at
lib/dpif-netdev.c:2182
#12 0x00000000010f935f in dpif_port_del (dpif=0x325b360, port_no=27,
local_delete=local_delete@entry=false)
at lib/dpif.c:631
#13 0x00000000010a71b2 in port_destruct (port_=0x3781520, del=) at
ofproto/ofproto-dpif.c:2147
#14 0x00000000010935bb in ofport_destroy (port=0x3781520, del=) at
ofproto/ofproto.c:2615
#15 0x000000000109b7c0 in ofproto_destroy (p=0x371f120, del=) at
ofproto/ofproto.c:1722
#16 0x0000000001085a0e in bridge_destroy (br=0x327bf80, del=del@entry=false) at
vswitchd/bridge.c:3605
#17 0x000000000108a369 in bridge_exit (delete_datapath=) at
vswitchd/bridge.c:552
#18 0x0000000000573e29 in main (argc=, argv=) at vswitchd/ovs-vswitchd.c:143
(gdb) info reg
rax 0x0 0
rbx 0x7fa270030588 140335640675720
rcx 0x0 0
rdx 0xc3 195
rsi 0x0 0
rdi 0x3629d20 56794400
rbp 0x7fff1ed2cac0 0x7fff1ed2cac0
rsp 0x7fff1ed2ca48 0x7fff1ed2ca48
r8 0x0 0
r9 0x3803e90 58736272
r10 0x0 0
r11 0x6 6
r12 0x7fff1ed2cac0 140733710518976
r13 0x70030650 1879246416
r14 0x7fff1ed2cab8 140733710518968
r15 0x7fff1ed2cac0 140733710518976
rip 0x10a8818 0x10a8818 <ofproto_dpif_credit_table_stats+56>
eflags 0x10206 [ PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
k0 0x0 0
k1 0x0 0
k2 0x0 0
k3 0x0 0
k4 0x0 0
k5 0x0 0
k6 0x0 0
k7 0x0 0
(gdb) disassemble 0x10a8818
Dump of assembler code for function ofproto_dpif_credit_table_stats:
0x00000000010a87e0 <+0>: movzbl %sil,%esi
0x00000000010a87e4 <+4>: mov %rsi,%rax
0x00000000010a87e7 <+7>: shl $0x4,%rax
0x00000000010a87eb <+11>: sub %rsi,%rax
0x00000000010a87ee <+14>: shl $0x4,%rax
0x00000000010a87f2 <+18>: add 0x128(%rdi),%rax
0x00000000010a87f9 <+25>: test %rdx,%rdx
0x00000000010a87fc <+28>: jne 0x10a8818 <ofproto_dpif_credit_table_stats+56>
0x00000000010a87fe <+30>: test %rcx,%rcx
0x00000000010a8801 <+33>: jne 0x10a8808 <ofproto_dpif_credit_table_stats+40>
0x00000000010a8803 <+35>: retq
0x00000000010a8804 <+36>: nopl 0x0(%rax)
0x00000000010a8808 <+40>: lock add %rcx,0xe8(%rax)
0x00000000010a8810 <+48>: retq
0x00000000010a8811 <+49>: nopl 0x0(%rax)
=> 0x00000000010a8818 <+56>: lock add %rdx,0xe0(%rax)
0x00000000010a8820 <+64>: jmp 0x10a87fe <ofproto_dpif_credit_table_stats+30>
End of assembler dump.
(gdb) p *ofproto
$3 = {all_ofproto_dpifs_by_name_node = {hash = 0, next = 0x3741ba0},
all_ofproto_dpifs_by_uuid_node = {hash = 57992720, next = 0x1051}, up =
{hmap_node = {hash = 1163936137340, next = 0x3f0000003f},
ofproto_class = 0xce2b216a, type = 0x0, name = 0x0, fallback_dpid = 0,
datapath_id = 0, forward_bpdu = false, mfr_desc = 0x59fdad4700000006 <error:
Cannot access memory at address 0x59fdad4700000006>,
hw_desc = 0x430a8cdc868fc310 <error: Cannot access memory at address
0x430a8cdc868fc310>, sw_desc = 0x0, serial_desc = 0x7fa26009fd20 "", dp_desc =
0x7fa2600d23d0 "", frag_handling = 1611358112, ports = {
buckets = 0x0, one = 0x0, mask = 369490328463343620, n = 2758902708},
port_by_name = {map = {buckets = 0x0, one = 0x7fa2600a4980, mask =
140335372699424, n = 0}}, ofp_requests = {map = {buckets = 0x0,
one = 0x0, mask = 1020897070376026114, n = 0}}, alloc_port_no = 0, max_ports =
0, ofport_usage = {buckets = 0x7fa2600fce40, one = 0x0, mask = 0, n = 0},
change_seq = 0, eviction_group_timer = 0,
tables = 0x0, n_tables = 0, tables_version = 0, cookies = {buckets = 0x0, one =
0x0, mask = 0, n_unique = 0}, learned_cookies = {buckets = 0xa09f639c00000004,
one = 0x2b33f99c, mask = 0,
n = 140335372891088}, expirable = {prev = 0x7fa260108cb0, next = 0x0},
meter_features = {max_meters = 0, band_types = 0, capabilities = 0, max_bands =
0 '\000', max_color = 0 '\000'}, meters = {
buckets = 0x4b4c0f7a00000002, one = 0x0, mask = 0, n = 140335372886432},
slowpath_meter_id = 0, controller_meter_id = 0, connmgr = 0x0, min_mtu = 0,
groups = {impl = {p = 0x0}}, n_groups = {2,
1415127537, 0, 0}, ogf = {types = 0, capabilities = 0, max_groups =
{1612239072, 32674, 0, 0}, ofpacts = {0, 0, 0, 0}}, metadata_tab = {p = 0x0},
vl_mff_map = {cmap = {impl = {p = 0x0}}, mutex = {lock = {
__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0,
__spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size =
'\000' <repeats 39 times>, __align = 0},
where = 0xba27fb500000004 <error: Cannot access memory at address
0xba27fb500000004>}}}, backer = 0x906958e3, uuid = {parts = {0, 0, 1610935792,
32674}}, tables_version = 140335372744048, dump_seq = 0,
miss_rule = 0x0, no_packet_in_rule = 0x0, drop_frags_rule = 0xd79f750d00000006,
netflow = 0xf1991026332d2be0, sflow = 0x0, ipfix = 0x7fa260043830, bundles =
{buckets = 0x7fa2600a99a0, one = 0x7fa2601fd6b0,
mask = 0, n = 0}, ml = 0xb9971b5200000002, ms = 0x0, has_bonded_bundles =
false, lacp_enabled = false, mbridge = 0x7fa260168b50, stats_mutex = {lock =
{__data = {__lock = 0, __count = 0, __owner = 0,
__nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x0,
__next = 0xc2d8714b00000006}}, __size = '\000' <repeats 32 times>,
"\006\000\000\000Kq\330", <incomplete sequence \302>,
__align = 0}, where = 0x3bb82d338c6f5ba6 <error: Cannot access memory at
address 0x3bb82d338c6f5ba6>}, stats = {rx_packets = 0, tx_packets =
140335373557152, rx_bytes = 140335373226416,
tx_bytes = 140335372593392, rx_errors = 0, tx_errors = 0, rx_dropped =
8378066835995623426, tx_dropped = 0, multicast = 0, collisions =
140335373981728, rx_length_errors = 0, rx_over_errors = 0,
rx_crc_errors = 0, rx_frame_errors = 0, rx_fifo_errors = 12410622260254081028,
rx_missed_errors = 1186231435, tx_aborted_errors = 0, tx_carrier_errors =
140335373939168, tx_fifo_errors = 140335373424512,
tx_heartbeat_errors = 0, tx_window_errors = 0, rx_1_to_64_packets = 0,
rx_65_to_127_packets = 0, rx_128_to_255_packets = 0, rx_256_to_511_packets = 0,
rx_512_to_1023_packets = 0,
rx_1024_to_1522_packets = 0, rx_1523_to_max_packets = 0, tx_1_to_64_packets =
0, tx_65_to_127_packets = 0, tx_128_to_255_packets = 6361799859137150982,
tx_256_to_511_packets = 8919369999343897625,
tx_512_to_1023_packets = 0, tx_1024_to_1522_packets = 140335373711424,
tx_1523_to_max_packets = 140335373447328, tx_multicast_packets =
140335373316560, rx_broadcast_packets = 0, tx_broadcast_packets = 0,
rx_undersized_errors = 1507772303897788418, rx_oversize_errors = 0,
rx_fragmented_errors = 0, rx_jabber_errors = 0}, stp = 0x0, stp_last_tick = 0,
rstp = 0x0, rstp_last_tick = 0, ports = {map = {
buckets = 0xf3c911ba00000004, one = 0xe0e96d08, mask = 0, n =
140335373890928}}, ghost_ports = {map = {buckets = 0x7fa26014ed80, one = 0x0,
mask = 0, n = 0}}, port_poll_set = {map = {buckets = 0x0,
one = 0x0, mask = 0, n = 0}}, port_poll_errno = 0, change_seq = 0, ams = {mutex
= {lock = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind
= 4, __spins = -26912, __elision = -18608,
__list = {__prev = 0xbb62aa2c, __next = 0x0}}, __size = '\000' <repeats 16
times>, "\004\000\000\000\340\226P\267,\252b\273", '\000' <repeats 11 times>,
__align = 0}, where = 0x7fa260074160 ""},
list = {prev = 0x7fa260125520, next = 0x0}, n = 0}, ams_seq = 0x0, ams_seqno =
3765277242901397506, is_controller_connected = false}
(gdb) p ofproto->up
$3 = {hmap_node = {hash = 1163936137340, next = 0x3f0000003f}, ofproto_class =
0xce2b216a, type = 0x0, name = 0x0, fallback_dpid = 0, datapath_id = 0,
forward_bpdu = false,
mfr_desc = 0x59fdad4700000006 <error: Cannot access memory at address
0x59fdad4700000006>, hw_desc = 0x430a8cdc868fc310 <error: Cannot access memory
at address 0x430a8cdc868fc310>,
sw_desc = 0x0, serial_desc = 0x7fa26009fd20 "", dp_desc = 0x7fa2600d23d0 "",
frag_handling = 1611358112, ports = {buckets = 0x0, one = 0x0, mask =
369490328463343620, n = 2758902708},
port_by_name = {map = {buckets = 0x0, one = 0x7fa2600a4980, mask =
140335372699424, n = 0}}, ofp_requests = {map = {buckets = 0x0, one = 0x0, mask
= 1020897070376026114, n = 0}},
alloc_port_no = 0, max_ports = 0, ofport_usage = {buckets = 0x7fa2600fce40,
one = 0x0, mask = 0, n = 0}, change_seq = 0, eviction_group_timer = 0, tables =
0x0, n_tables = 0,
tables_version = 0, cookies = {buckets = 0x0, one = 0x0, mask = 0, n_unique =
0}, learned_cookies = {buckets = 0xa09f639c00000004, one = 0x2b33f99c, mask =
0, n = 140335372891088},
expirable = {prev = 0x7fa260108cb0, next = 0x0}, meter_features = {max_meters
= 0, band_types = 0, capabilities = 0, max_bands = 0 '\000', max_color = 0
'\000'}, meters = {
buckets = 0x4b4c0f7a00000002, one = 0x0, mask = 0, n = 140335372886432},
slowpath_meter_id = 0, controller_meter_id = 0, connmgr = 0x0, min_mtu = 0,
groups = {impl = {p = 0x0}},
n_groups = {2, 1415127537, 0, 0}, ogf = {types = 0, capabilities = 0,
max_groups = {1612239072, 32674, 0, 0}, ofpacts = {0, 0, 0, 0}}, metadata_tab =
{p = 0x0}, vl_mff_map = {cmap = {
impl = {p = 0x0}}, mutex = {lock = {__data = {__lock = 0, __count = 0,
__owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list =
{__prev = 0x0, __next = 0x0}},
__size = '\000' <repeats 39 times>, __align = 0}, where =
0xba27fb500000004 <error: Cannot access memory at address 0xba27fb500000004>}}}
(gdb)
(gdb) p tbl
$4 = (struct oftable *) 0x0
(gdb) p ofproto->up.tables
$5 = (struct oftable *) 0x0
ovs code as follows when ovs crashes :
void
ofproto_dpif_credit_table_stats(struct ofproto_dpif *ofproto, uint8_t table_id,
uint64_t n_matches, uint64_t n_misses)
{
struct oftable *tbl = &ofproto->up.tables[table_id];
unsigned long orig;
if (n_matches) {
atomic_add_relaxed(&tbl->n_matched, n_matches, &orig); // tbl addresss
is 0 when ovs crashes.
}
if (n_misses) {
atomic_add_relaxed(&tbl->n_missed, n_misses, &orig);
}
}
Second stack trace:
(gdb) bt
#0 0xfffffac0e9000000 in ?? ()
#1 0x00000000010918df in rule_destroy_cb (rule=0x3942430) at
ofproto/ofproto.c:2943
#2 0x0000000001175e16 in ovsrcu_call_postponed () at lib/ovs-rcu.c:348
#3 0x0000000001175f04 in ovsrcu_postpone_thread (arg=) at lib/ovs-rcu.c:364
#4 0x000000000117808d in ovsthread_wrapper (aux_=) at lib/ovs-thread.c:383
#5 0x00007fd6f0c5a14a in start_thread () from /lib64/libpthread.so.0
#6 0x00007fd6efeb3f23 in clone () from /lib64/libc.so.6
(gdb) frame 1
#1 0x00000000010918df in rule_destroy_cb (rule=0x3942430) at
ofproto/ofproto.c:2943
2943 rule->ofproto->ofproto_class->rule_destruct(rule);
(gdb) info reg
rax 0x408d00 4230400
rbx 0x3942430 60040240
rcx 0xc11 3089
rdx 0x7fd6b0000080 140560052519040
rsi 0x0 0
rdi 0x3942430 60040240
rbp 0x7fd6b0011be0 0x7fd6b0011be0
rsp 0x7fd6ecb36fb0 0x7fd6ecb36fb0
r8 0x7fd6d8000924 140560723609892
r9 0x7 7
r10 0x2d83b96 47725462
r11 0x206 518
r12 0x7fd6ecb36fc0 140561070911424
r13 0x7fd6ed337ebf 140561079303871
r14 0x7fd6ed337f50 140561079304016
r15 0x7fd6ecb37100 140561070911744
rip 0x10918df 0x10918df <rule_destroy_cb+47>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
k0 0x0 0
k1 0x0 0
k2 0x0 0
k3 0x0 0
k4 0x0 0
k5 0x0 0
k6 0x0 0
k7 0x0 0
(gdb) disassemble 0x10918df
Dump of assembler code for function rule_destroy_cb:
0x00000000010918b0 <+0>: push %rbx
0x00000000010918b1 <+1>: mov %rdi,%rbx
0x00000000010918b4 <+4>: testb $0x1,0xa0(%rdi)
0x00000000010918bb <+11>: je 0x10918cf <rule_destroy_cb+31>
0x00000000010918bd <+13>: cmpb $0x6,0xaa(%rdi)
0x00000000010918c4 <+20>: je 0x10918cf <rule_destroy_cb+31>
0x00000000010918c6 <+22>: cmpl $0xffff,0x18(%rdi)
0x00000000010918cd <+29>: jle 0x1091918 <rule_destroy_cb+104>
0x00000000010918cf <+31>: mov (%rbx),%rax
0x00000000010918d2 <+34>: mov %rbx,%rdi
0x00000000010918d5 <+37>: mov 0x10(%rax),%rax
0x00000000010918d9 <+41>: callq *0x158(%rax)
=> 0x00000000010918df <+47>: mov (%rbx),%rax
0x00000000010918e2 <+50>: mov 0x118(%rbx),%rsi
0x00000000010918e9 <+57>: lea 0x210(%rax),%rdi
0x00000000010918f0 <+64>: callq 0x1117220 <mf_vl_mff_unref>
0x00000000010918f5 <+69>: mov (%rbx),%rax
0x00000000010918f8 <+72>: mov 0x120(%rbx),%rsi
0x00000000010918ff <+79>: lea 0x210(%rax),%rdi
0x0000000001091906 <+86>: callq 0x1117220 <mf_vl_mff_unref>
0x000000000109190b <+91>: mov %rbx,%rdi
0x000000000109190e <+94>: pop %rbx
0x000000000109190f <+95>: jmpq 0x1090b50 <ofproto_rule_destroy__>
0x0000000001091914 <+100>: nopl 0x0(%rax)
0x0000000001091918 <+104>: callq 0x1091760 <ofproto_rule_send_removed>
0x000000000109191d <+109>: jmp 0x10918cf <rule_destroy_cb+31>
End of assembler dump.
(gdb) p *rule
$1 = {ofproto = 0x37623e0, cr = {node = {prev = 0xcccccccccccccccc, next = {p =
0x3874bc0}}, priority = 0, cls_match = {p = 0x0}, match = {{{flow = 0x38e9de0,
mask = 0x38e9df0}, flows = {0x38e9de0,
0x38e9df0}}, tun_md = 0x0}}, table_id = 0 '\000', state = RULE_REMOVED, mutex =
{lock = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind =
2, __spins = 0, __elision = 0,
__list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>,
"\002", '\000' <repeats 22 times>, __align = 0}, where = 0x14ab7e8 ""},
ref_count = {count = 0},
flow_cookie = 5638004435696427197, cookie_node = {hash = 3567688855, d =
0x387b8b8, s = 0x0}, flags = (unknown: 0), hard_timeout = 0, idle_timeout = 0,
importance = 0, removed_reason = 2 '\002',
eviction_group = 0x0, evg_node = {idx = 0, priority = 0}, actions = 0x3889fa0,
meter_list_node = {prev = 0x3942500, next = 0x3942500}, monitor_flags =
(unknown: 0), add_seqno = 49, modify_seqno = 49,
expirable = {prev = 0x3942528, next = 0x3942528}, created = 95441005, modified
= 95441005, match_tlv_bitmap = 0, ofpacts_tlv_bitmap = 0}
(gdb) p *rule->ofproto->ofproto_class->rule_destruct
Cannot access memory at address 0xfffffac0e9000000
(gdb)
(gdb) p *rule->ofproto->ofproto_class
$8 = {init = 0x3d68014954fa25ff, enumerate_types = 0xfffffc10e9000000,
enumerate_names = 0x3e68014954f225ff, del = 0xfffffc00e9000000, port_open_type
= 0x3f68014954ea25ff,
type_run = 0xfffffbf0e9000000, type_wait = 0x4068014954e225ff, alloc =
0xfffffbe0e9000000, construct = 0x4168014954da25ff, destruct =
0xfffffbd0e9000000, dealloc = 0x4268014954d225ff,
run = 0xfffffbc0e9000000, wait = 0x4368014954ca25ff, get_memory_usage =
0xfffffbb0e9000000, type_get_memory_usage = 0x4468014954c225ff, flush =
0xfffffba0e9000000,
query_tables = 0x4568014954ba25ff, modify_tables = 0xfffffb90e9000000,
set_tables_version = 0x4668014954b225ff, port_alloc = 0xfffffb80e9000000,
port_construct = 0x4768014954aa25ff,
port_destruct = 0xfffffb70e9000000, port_dealloc = 0x4868014954a225ff,
port_modified = 0xfffffb60e9000000, port_reconfigured = 0x49680149549a25ff,
port_query_by_name = 0xfffffb50e9000000, port_add = 0x4a680149549225ff,
port_del = 0xfffffb40e9000000, port_set_config = 0x4b680149548a25ff,
port_get_stats = 0xfffffb30e9000000,
vport_get_status = 0x4c680149548225ff, port_dump_start = 0xfffffb20e9000000,
port_dump_next = 0x4d680149547a25ff, port_dump_done = 0xfffffb10e9000000,
port_poll = 0x4e680149547225ff,
port_poll_wait = 0xfffffb00e9000000, port_is_lacp_current =
0x4f680149546a25ff, port_get_lacp_stats = 0xfffffaf0e9000000, rule_choose_table
= 0x50680149546225ff,
rule_alloc = 0xfffffae0e9000000, rule_construct = 0x51680149545a25ff,
rule_insert = 0xfffffad0e9000000, rule_delete = 0x52680149545225ff,
rule_destruct = 0xfffffac0e9000000,
rule_dealloc = 0x53680149544a25ff, rule_get_stats = 0xfffffab0e9000000,
packet_xlate = 0x54680149544225ff, packet_xlate_revert = 0xfffffaa0e9000000,
packet_execute_prepare = 0x55680149543a25ff, packet_execute =
0xfffffa90e9000000, set_frag_handling = 0x56680149543225ff, nxt_resume =
0xfffffa80e9000000,
set_netflow = 0x57680149542a25ff, get_netflow_ids = 0xfffffa70e9000000,
set_sflow = 0x58680149542225ff, set_ipfix = 0xfffffa60e9000000, get_ipfix_stats
= 0x59680149541a25ff,
set_cfm = 0xfffffa50e9000000, cfm_status_changed = 0x5a680149541225ff,
get_cfm_status = 0xfffffa40e9000000, set_lldp = 0x5b680149540a25ff,
get_lldp_status = 0xfffffa30e9000000,
set_aa = 0x5c680149540225ff, aa_mapping_set = 0xfffffa20e9000000,
aa_mapping_unset = 0x5d68014953fa25ff, aa_vlan_get_queued = 0xfffffa10e9000000,
aa_vlan_get_queue_size = 0x5e68014953f225ff, set_bfd = 0xfffffa00e9000000,
bfd_status_changed = 0x5f68014953ea25ff, get_bfd_status = 0xfffff9f0e9000000,
set_stp = 0x6068014953e225ff,
get_stp_status = 0xfffff9e0e9000000, set_stp_port = 0x6168014953da25ff,
get_stp_port_status = 0xfffff9d0e9000000, get_stp_port_stats =
0x6268014953d225ff,
set_rstp = 0xfffff9c0e9000000, get_rstp_status = 0x6368014953ca25ff,
set_rstp_port = 0xfffff9b0e9000000, get_rstp_port_status = 0x6468014953c225ff,
set_queues = 0xfffff9a0e9000000,
bundle_set = 0x6568014953ba25ff, bundle_remove = 0xfffff990e9000000,
mirror_set = 0x6668014953b225ff, mirror_get_stats = 0xfffff980e9000000,
set_flood_vlans = 0x6768014953aa25ff,
is_mirror_output_bundle = 0xfffff970e9000000, forward_bpdu_changed =
0x6868014953a225ff, set_mac_table_config = 0xfffff960e9000000,
set_mcast_snooping = 0x69680149539a25ff,
set_mcast_snooping_port = 0xfffff950e9000000, meter_get_features =
0x6a680149539225ff, meter_set = 0xfffff940e9000000, meter_get =
0x6b680149538a25ff, meter_del = 0xfffff930e9000000,
group_alloc = 0x6c680149538225ff, group_construct = 0xfffff920e9000000,
group_destruct = 0x6d680149537a25ff, group_dealloc = 0xfffff910e9000000,
group_modify = 0x6e680149537225ff,
group_get_stats = 0xfffff900e9000000, get_datapath_version =
0x6f680149536a25ff, get_datapath_cap = 0xfffff8f0e9000000, type_set_config =
0x70680149536225ff,
ct_flush = 0xfffff8e0e9000000, ct_set_zone_timeout_policy =
0x71680149535a25ff, ct_del_zone_timeout_policy = 0xfffff8d0e9000000}
(gdb) p rule->ofproto->ofproto_class->rule_destruct
$9 = (void (*)(struct rule *)) 0xfffffac0e9000000
ovs code as follows when ovs crashes :
static void
rule_destroy_cb(struct rule *rule)
OVS_NO_THREAD_SAFETY_ANALYSIS
{
/* Send rule removed if needed. */
if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM
&& rule->removed_reason != OVS_OFPRR_NONE
&& !rule_is_hidden(rule)) {
ofproto_rule_send_removed(rule);
}
rule->ofproto->ofproto_class->rule_destruct(rule); //
rule->ofproto->ofproto_class memory is freed when excute rule_destroy_cb
function.
mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->match_tlv_bitmap);
mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->ofpacts_tlv_bitmap);
ofproto_rule_destroy__(rule);
}
thanks!
Best regards, Peter.
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