Core dump on bit_or

[SergeySatskiy]

Excerpt of a stack:
#0 0x00000000007d192f in bm::bvector<bm::mem_alloc<bm::block_allocator, bm::ptr_allocator, bm::alloc_pool<bm::block_allocator, bm::ptr_allocator> > >::bit_or (this=0x7ff9d302e060, bv1=..., bv2=...,
opt_mode=bm::bvector<bm::mem_alloc<bm::block_allocator, bm::ptr_allocator, bm::alloc_pool<bm::block_allocator, bm::ptr_allocator> > >::opt_none) at /export/home/satskyse/ns/bld/include/util/bitset/bm.h:4783
#1 0x00000000007cdb71 in bm::operator|<bm::mem_alloc<bm::block_allocator, bm::ptr_allocator, bm::alloc_pool<bm::block_allocator, bm::ptr_allocator> > > (bv1=..., bv2=...)
at /export/home/satskyse/ns/bld/include/util/bitset/bm.h:2397
#2 0x00000000007c6640 in ncbi::CJobStatusTracker::GetOutdatedReadVacantJobs (this=0x3047998, timeout=..., read_jobs=..., gc_registry=...) at /export/home/satskyse/ns/bld/src/app/netschedule/job_status.cpp:423
#3 0x00000000007fa466 in ncbi::CQueue::NotifyListenersPeriodically (this=0x3047970, current_time=...) at /export/home/satskyse/ns/bld/src/app/netschedule/ns_queue.cpp:3103
#4 0x0000000000887b8f in ncbi::CQueueDataBase::NotifyListeners (this=0x3045c10) at /export/home/satskyse/ns/bld/src/app/netschedule/queue_database.cpp:1439
#5 0x00000000008bf1ca in ncbi::CGetJobNotificationThread::x_DoJob (this=0x30510e0) at /export/home/satskyse/ns/bld/src/app/netschedule/ns_notifications.cpp:1006
#6 0x00000000008bec39 in ncbi::CGetJobNotificationThread::Main (this=0x30510e0) at /export/home/satskyse/ns/bld/src/app/netschedule/ns_notifications.cpp:941
#7 0x0000000000c08767 in ncbi::CThread::Wrapper (arg=0x30510e0) at /export/home/satskyse/ns/bld/src/corelib/ncbithr.cpp:572
#8 0x0000000000c0b1fe in ncbi::ThreadWrapperCaller (arg=0x30510e0) at /export/home/satskyse/ns/bld/src/corelib/ncbithr.cpp:668
#9 0x0000000000c09074 in ncbi::ThreadWrapperCallerImpl (arg=0x30510e0) at /export/home/satskyse/ns/bld/src/corelib/ncbithr.cpp:676
#10 0x00007ff9d46f2dd5 in start_thread () from /lib64/libpthread.so.0
#11 0x00007ff9d3b8102d in clone () from /lib64/libc.so.6

Here is the corresponding source code:
421 TNSBitVector candidates;
422
423 candidates = *m_StatusStor[(int) CNetScheduleAPI::eDone] |
424 *m_StatusStor[(int) CNetScheduleAPI::eFailed] |
425 *m_StatusStor[(int) CNetScheduleAPI::eCanceled];

gdb session:
(gdb) l
2392 template
2393 inline bvector operator| (const bvector& bv1,
2394 const bvector& bv2)
2395 {
2396 bvector ret;
2397 ret.bit_or(bv1, bv2, bvector::opt_none);
2398 return ret;
2399 }
2400
2401 //---------------------------------------------------------------------
(gdb) f 0
#0 0x00000000007d192f in bm::bvector<bm::mem_alloc<bm::block_allocator, bm::ptr_allocator, bm::alloc_pool<bm::block_allocator, bm::ptr_allocator> > >::bit_or (this=0x7ff9d302e060, bv1=..., bv2=...,
opt_mode=bm::bvector<bm::mem_alloc<bm::block_allocator, bm::ptr_allocator, bm::alloc_pool<bm::block_allocator, bm::ptr_allocator> > >::opt_none) at /export/home/satskyse/ns/bld/include/util/bitset/bm.h:4783
4783 bm::word_t** blk_blk_arg1 = (i < top_blocks1) ? blk_root_arg1[i] : 0;
(gdb) l
4778 bm::word_t*** blk_root_arg1 = bv1.blockman_.top_blocks_root();
4779 bm::word_t*** blk_root_arg2 = bv2.blockman_.top_blocks_root();
4780
4781 for (unsigned i = 0; i < top_blocks; ++i)
4782 {
4783 bm::word_t** blk_blk_arg1 = (i < top_blocks1) ? blk_root_arg1[i] : 0;
4784 bm::word_t** blk_blk_arg2 = (i < top_blocks2) ? blk_root_arg2[i] : 0;
4785
4786 if (blk_blk_arg1 == blk_blk_arg2)
4787 {
(gdb) p blk_root_arg1
$1 = (bm::word_t ***) 0x0
(gdb) p top_blocks
$2 = 1
(gdb) p i
$3 = 0
(gdb) p top_blocks1
$4 = 1
(gdb) p top_blocks2
$5 = 1
(gdb)
(gdb) p blk_root_arg1
$10 = (bm::word_t ***) 0x0
(gdb) p blk_root_arg2
$11 = (bm::word_t ***) 0x0

Note: GCC 7.3.0 was used

[tlk00]

The issue should be resolved in the master, closing