Hi
We are facing two errors with vpp2106 and Address Sanitizer enabled.
make V=1 -j4 build VPP_EXTRA_CMAKE_ARGS=-DVPP_ENABLE_SANITIZE_ADDR=ON
*Work-around* - After adding the two api’s string_key_sum and
strnlen_s_inline to ASAN suppression, vpp2106 comes up fine.
Error 1:
----------
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff71db5c1 in __asan::FakeStack::AddrIsInFakeStack(unsigned long,
unsigned long*, unsigned long*) ()
from /lib64/libasan.so.5
(gdb) bt
#0 0x00007ffff71db5c1 in __asan::FakeStack::AddrIsInFakeStack(unsigned
long, unsigned long*, unsigned long*) ()
from /lib64/libasan.so.5
#1 0x00007ffff72c2a11 in
__asan::ThreadStackContainsAddress(__sanitizer::ThreadContextBase*, void*)
()
from /lib64/libasan.so.5
#2 0x00007ffff72dcdc2 in
__sanitizer::ThreadRegistry::FindThreadContextLocked(bool
(*)(__sanitizer::ThreadContextBase*, void*), void*) () from
/lib64/libasan.so.5
#3 0x00007ffff72c3e5a in __asan::FindThreadByStackAddress(unsigned long)
() from /lib64/libasan.so.5
#4 0x00007ffff71d5fb6 in __asan::GetStackAddressInformation(unsigned long,
unsigned long, __asan::StackAddressDescription*) () from /lib64/libasan.so.5
#5 0x00007ffff71d73f9 in
__asan::AddressDescription::AddressDescription(unsigned long, unsigned
long, bool) ()
from /lib64/libasan.so.5
#6 0x00007ffff71d9e51 in __asan::ErrorGeneric::ErrorGeneric(unsigned int,
unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned
long) () from /lib64/libasan.so.5
#7 0x00007ffff72bdc2a in __asan::ReportGenericError(unsigned long,
unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned
int, bool) () from /lib64/libasan.so.5
#8 0x00007ffff720ef9c in __interceptor_strlen.part.0 () from
/lib64/libasan.so.5
*#9 0x00007ffff34ce2ec in string_key_sum (h=0x7fff6ff6e970,
key=140735097062688)*
* at src/vppinfra/hash.c:947*
#10 0x00007ffff34caf15 in key_sum (h=0x7fff6ff6e970, key=140735097062688)
at src/vppinfra/hash.c:333
#11 0x00007ffff34cbf76 in lookup (v=0x7fff6ff6e9b8, key=140735097062688,
op=GET, new_value=0x0, old_value=0x0)
at src/vppinfra/hash.c:557
#12 0x00007ffff34cc59d in _hash_get_pair (v=0x7fff6ff6e9b8,
key=140735097062688)
at src/vppinfra/hash.c:653
*#13 0x000000000042e885 in lookup_hash_index (name=0x7fff7177c520
"/mem/stat segment")*
at src/vpp/stats/stat_segment.c:69
#14 0x0000000000431790 in stat_segment_new_entry (name=0x7fff7177c520
"/mem/stat segment",
t=STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE)
at src/vpp/stats/stat_segment.c:402
#15 0x00000000004401fb in vlib_stats_register_mem_heap (heap=0x7ffb67e00000)
at src/vpp/stats/stat_segment_provider.c:96
#16 0x00000000004327fa in vlib_map_stat_segment_init ()
at src/vpp/stats/stat_segment.c:493
---Type <return> to continue, or q <return> to quit---
#17 0x00007ffff3e15d19 in vlib_main (vm=0x7fff6eeff680,
input=0x7fff6a0a9f70)
at src/vlib/main.c:3272
#18 0x00007ffff3f0d924 in thread0 (arg=140735054608000)
at src/vlib/unix/main.c:671
#19 0x00007ffff34d9504 in clib_calljmp ()
at src/vppinfra/longjmp.S:123
#20 0x00007fffffffc940 in ?? ()
#21 0x00007ffff3f0e67e in vlib_unix_main (argc=282, argv=0x61d00001a480)
at src/vlib/unix/main.c:751
#22 0x000000000040b482 in main (argc=282, argv=0x61d00001a480)
at src/vpp/vnet/main.c:336
(gdb) q
Error 2:
-----------
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff71db5c1 in __asan::FakeStack::AddrIsInFakeStack(unsigned long,
unsigned long*, unsigned long*) ()
from /lib64/libasan.so.5
(gdb) bt
#0 0x00007ffff71db5c1 in __asan::FakeStack::AddrIsInFakeStack(unsigned
long, unsigned long*, unsigned long*) ()
from /lib64/libasan.so.5
#1 0x00007ffff72c2a11 in
__asan::ThreadStackContainsAddress(__sanitizer::ThreadContextBase*, void*)
()
from /lib64/libasan.so.5
#2 0x00007ffff72dcdc2 in
__sanitizer::ThreadRegistry::FindThreadContextLocked(bool
(*)(__sanitizer::ThreadContextBase*, void*), void*) () from
/lib64/libasan.so.5
#3 0x00007ffff72c3e5a in __asan::FindThreadByStackAddress(unsigned long)
() from /lib64/libasan.so.5
#4 0x00007ffff71d5fb6 in __asan::GetStackAddressInformation(unsigned long,
unsigned long, __asan::StackAddressDescription*) () from /lib64/libasan.so.5
#5 0x00007ffff71d73f9 in
__asan::AddressDescription::AddressDescription(unsigned long, unsigned
long, bool) ()
from /lib64/libasan.so.5
#6 0x00007ffff71d9e51 in __asan::ErrorGeneric::ErrorGeneric(unsigned int,
unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned
long) () from /lib64/libasan.so.5
#7 0x00007ffff72bdc2a in __asan::ReportGenericError(unsigned long,
unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned
int, bool) () from /lib64/libasan.so.5
#8 0x00007ffff721252c in __interceptor_strnlen.part.0 () from
/lib64/libasan.so.5
*#9 0x00007ffff3595a0c in strnlen_s_inline (s=0x7fff7177c520 "/mem/stat
segment", maxsize=128)*
* at src/vppinfra/string.h:800*
#10 0x00007ffff3595f63 in strcpy_s_inline (dest=0x7fff6a0a9ab0 "",
dmax=128, src=0x7fff7177c520 "/mem/stat segment")
at src/vppinfra/string.h:960
*#11 0x00007ffff3597e1c in strcpy_s (dest=0x7fff6a0a9ab0 "", dmax=128,
src=0x7fff7177c520 "/mem/stat segment")*
at src/vppinfra/string.c:274
#12 0x0000000000431820 in stat_segment_new_entry (name=0x7fff7177c520
"/mem/stat segment",
t=STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE)
at src/vpp/stats/stat_segment.c:408
#13 0x00000000004401fb in vlib_stats_register_mem_heap (heap=0x7ffb67e00000)
at src/vpp/stats/stat_segment_provider.c:96
#14 0x00000000004327fa in vlib_map_stat_segment_init ()
at src/vpp/stats/stat_segment.c:493
#15 0x00007ffff3e15d19 in vlib_main (vm=0x7fff6eeff680,
input=0x7fff6a0a9f70)
at src/vlib/main.c:3272
#16 0x00007ffff3f0d924 in thread0 (arg=140735054608000)
at src/vlib/unix/main.c:671
---Type <return> to continue, or q <return> to quit---
#17 0x00007ffff34d9504 in clib_calljmp ()
at src/vppinfra/longjmp.S:123
#18 0x00007fffffffc940 in ?? ()
#19 0x00007ffff3f0e67e in vlib_unix_main (argc=282, argv=0x61d00001a480)
at src/vlib/unix/main.c:751
#20 0x000000000040b482 in main (argc=282, argv=0x61d00001a480)
at src/vpp/vnet/main.c:336
(gdb)
Thanks,
Chetan
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