Hi all,
I am trying to debug a segfault due to of my commits. I usually use the release
image by building make build-release, but as I am trying to debug, so I decided
to just do make build
As ironic as it can be this one does not start up and ends with abort long
before I start my tests, is this a known problem or am I missing some step (I
have not done detailed code level debugging, hoping that I am missing something
trivial).
$ sudo gdb --args ./bin/vpp -c ~/intel-xxv710-DCDC-no-mseg.conf
Reading symbols from ./bin/vpp...done.
(gdb) run
Starting program:
/home/sirdas/code/commitb/vpp/build-root/build-vpp_debug-native/vpp/bin/vpp -c
/home/sirdas/intel-xxv710-DCDC-no-mseg.conf
warning: Unable to determine the number of hardware watchpoints available.
warning: Unable to determine the number of hardware breakpoints available.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
vlib_plugin_early_init:361: plugin path
/home/sirdas/code/commitb/vpp/build-root/build-vpp_debug-native/vpp/lib/vpp_plugins:/home/sirdas/code/commitb/vpp/build-root/build-vpp_debug-native/vpp/lib64/vpp_plugins
load_one_plugin:189: Loaded plugin: abf_plugin.so (ACL based Forwarding)
load_one_plugin:189: Loaded plugin: acl_plugin.so (Access Control Lists)
load_one_plugin:189: Loaded plugin: avf_plugin.so (Intel Adaptive Virtual
Function (AVF) Device Plugin)
load_one_plugin:191: Loaded plugin: cdp_plugin.so
load_one_plugin:189: Loaded plugin: dpdk_plugin.so (Data Plane Development Kit
(DPDK))
load_one_plugin:189: Loaded plugin: flowprobe_plugin.so (Flow per Packet)
load_one_plugin:189: Loaded plugin: gbp_plugin.so (Group Based Policy)
load_one_plugin:189: Loaded plugin: gtpu_plugin.so (GTPv1-U)
load_one_plugin:189: Loaded plugin: igmp_plugin.so (IGMP messaging)
load_one_plugin:189: Loaded plugin: ila_plugin.so (Identifier-locator
addressing for IPv6)
load_one_plugin:189: Loaded plugin: ioam_plugin.so (Inbound OAM)
load_one_plugin:117: Plugin disabled (default): ixge_plugin.so
load_one_plugin:189: Loaded plugin: l2e_plugin.so (L2 Emulation)
load_one_plugin:189: Loaded plugin: lacp_plugin.so (Link Aggregation Control
Protocol)
load_one_plugin:189: Loaded plugin: lb_plugin.so (Load Balancer)
load_one_plugin:189: Loaded plugin: mactime_plugin.so (Time-based MAC
source-address filter)
load_one_plugin:189: Loaded plugin: map_plugin.so (Mapping of address and port
(MAP))
load_one_plugin:189: Loaded plugin: memif_plugin.so (Packet Memory Interface
(experimetal))
load_one_plugin:189: Loaded plugin: nat_plugin.so (Network Address Translation)
load_one_plugin:189: Loaded plugin: pppoe_plugin.so (PPPoE)
load_one_plugin:189: Loaded plugin: srv6ad_plugin.so (Dynamic SRv6 proxy)
load_one_plugin:189: Loaded plugin: srv6am_plugin.so (Masquerading SRv6 proxy)
load_one_plugin:189: Loaded plugin: srv6as_plugin.so (Static SRv6 proxy)
load_one_plugin:189: Loaded plugin: stn_plugin.so (VPP Steals the NIC for
Container integration)
load_one_plugin:189: Loaded plugin: tlsmbedtls_plugin.so (mbedtls based TLS
Engine)
load_one_plugin:189: Loaded plugin: tlsopenssl_plugin.so (openssl based TLS
Engine)
load_one_plugin:117: Plugin disabled (default): unittest_plugin.so
svm_map_region:766: region /global_vm mutex held by dead pid 8702, tag 2, force
unlock
svm_map_region:774: recovery: attempt to re-lock region
Program received signal SIGABRT, Aborted.
0x0000ffffbea70528 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 0x0000ffffbea70528 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
#1 0x0000ffffbea719e0 in __GI_abort () at abort.c:89
#2 0x0000000000408224 in os_panic () at
/home/sirdas/code/commitb/vpp/src/vpp/vnet/main.c:331
#3 0x0000ffffbeba8414 in mspace_malloc (msp=0x3ffff8001010, bytes=52) at
/home/sirdas/code/commitb/vpp/src/vppinfra/dlmalloc.c:4332
#4 0x0000ffffbeba7f34 in mspace_get_aligned (msp=0x3ffff8001010,
n_user_data_bytes=52, align=8, align_offset=8) at
/home/sirdas/code/commitb/vpp/src/vppinfra/dlmalloc.c:4174
#5 0x0000ffffbec2041c in clib_mem_alloc_aligned_at_offset (size=48, align=8,
align_offset=8, os_out_of_memory_on_failure=1) at
/home/sirdas/code/commitb/vpp/src/vppinfra/mem.h:118
#6 0x0000ffffbec2089c in vec_resize_allocate_memory (v=0x3ffff800213c,
length_increment=1, data_bytes=48, header_bytes=8, data_align=8) at
/home/sirdas/code/commitb/vpp/src/vppinfra/vec.c:84
#7 0x0000ffffbec7a350 in _vec_resize_inline (v=0x3ffff800213c,
length_increment=1, data_bytes=40, header_bytes=0, data_align=8) at
/home/sirdas/code/commitb/vpp/src/vppinfra/vec.h:145
#8 0x0000ffffbec7d298 in svm_map_region (a=0xffff7edffe50) at
/home/sirdas/code/commitb/vpp/src/svm/svm.c:778
#9 0x0000ffffbec7d4fc in svm_region_init_internal (a=0xffff7edffe50) at
/home/sirdas/code/commitb/vpp/src/svm/svm.c:835
#10 0x0000ffffbec7d9d4 in svm_region_init_args (a=0xffff7edffe50) at
/home/sirdas/code/commitb/vpp/src/svm/svm.c:918
#11 0x0000ffffbf697de0 in vlibmemory_init (vm=0xffffbed61640
<vlib_global_main>) at
/home/sirdas/code/commitb/vpp/src/vlibmemory/memory_api.c:915
#12 0x0000ffffbece8330 in vlib_main (vm=0xffffbed61640 <vlib_global_main>,
input=0xffff7edfffc0) at /home/sirdas/code/commitb/vpp/src/vlib/main.c:1757
#13 0x0000ffffbed32274 in thread0 (arg=281473883444800) at
/home/sirdas/code/commitb/vpp/src/vlib/unix/main.c:607
#14 0x0000ffffbebd5ef0 in clib_calljmp () from
/home/sirdas/code/commitb/vpp/build-root/build-vpp_debug-native/vpp/lib/libvppinfra.so
Backtrace stopped: not enough registers or memory available to unwind further
My startup conf (This is ARM thunderx2 machine with 4.15.0-32-generic, gcc
version 7.3.0, 16.04 Ubuntu):
unix {
nodaemon
interactive
cli-listen /run/vpp/cli.sock
exec intel-xxv710-address-up.commands
}
cpu {
workers 2
main-core 136
corelist-workers 137,138
}
dpdk {
dev default {
num-rx-queues 2
num-tx-queues 2
num-rx-desc 2048
num-tx-desc 2048
}
dev 0000:8a:00.0
dev 0000:8a:00.1
socket-mem 0,1024
no-multi-seg
}
Thank you
++++++++++++++++++++++
Sirshak Das
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