Hi all,
trying to setup a kind of CI with travis for node-firebird-libfbclient.
Keep getting SEG FAULT when tests are finished and nodejs exists.
Isolated it to one test case:
the test tests the case when erronous query is called async, i.e.
1. isc_attach_database is called on some thread from thread pool
2. then after connection is established follwoing functions are called
isc_dsql_allocate_statement
isc_start_transaction
isc_dsql_prepare for "select * from non_existent_table"
all in the same function possibly on another thread (but not at the same
time with isc_attach_database).
isc_dsql_prepare returns error as expected and everyting works until the
process is exiting
on process exit i get segfault
here is what I get from core dump:
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
warning: no loadable sections found in added symbol-file system-supplied
DSO at 0x7fff3fd91000
Core was generated by `node ./node_modules/.bin/nodeunit
tests/def/test-async.js
-t AsyncQueryWithErro'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007f1515ab2e84 in pthread_mutex_lock ()
from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) where
#0 0x00007f1515ab2e84 in pthread_mutex_lock ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f15112481b9 in ?? () from /usr/lib/x86_64-linux-gnu/
libfbclient.so.2
#2 0x00007f1515ab0c83 in __nptl_deallocate_tsd ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#3 0x00007f1515ab0ea8 in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f15157de36d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()
(gdb)
System info:
Ubuntu 12.04.5 LTS amd64
firebird2.5-superclassic
Same code works fine on Windows.
I also have tried to call fb_shutdown in exit hook provided by nodejs -
with no success, i.e.
fb_shutdown(0,1) returns 0 and later I still get SEG FAULT
Just have found that I also get SEGFAULT after unsuccessfull async connect
too.
So it looks like any unsuccessfull (with non zero return value) call on
other thread leads to SEG FAULT at process exit.
Thanks,
Denys
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