Jemalloc bug?

[Roel Van de Paar]

Hi All,

Crashing mysqld:

+bt
#0  0x00007f01cabf5741 in __pthread_kill (threadid=<optimized out>,
signo=11) at ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c:61
#1  0x0000000000793555 in handle_fatal_signal (sig=11) at
/git/PS-5.7_opt/sql/signal_handler.cc:223
#2  <signal handler called>
#3  je_bitmap_set (bit=18446744073709551615, binfo=0x7f01cb037a28
<je_arena_bin_info+456>, bitmap=0x7f016b423010) at
include/jemalloc/internal/bitmap.h:105
#4  je_bitmap_sfu (binfo=0x7f01cb037a28 <je_arena_bin_info+456>,
bitmap=0x7f016b423010) at include/jemalloc/internal/bitmap.h:140
#5  arena_run_reg_alloc (bin_info=0x7f01cb037a00 <je_arena_bin_info+416>,
run=0x7f016b423000) at src/arena.c:291
#6  je_arena_tcache_fill_small (arena=0x7f01c721f1c0,
tbin=tbin at entry=0x7f016b4060a8,
binind=binind at entry=4, prof_accumbytes=prof_accumbytes at entry=0) at
src/arena.c:1479
#7  0x00007f01cae2b6ff in je_tcache_alloc_small_hard
(tcache=tcache at entry=0x7f016b406000,
tbin=tbin at entry=0x7f016b4060a8, binind=binind at entry=4) at src/tcache.c:72
#8  0x00007f01cae0b14f in je_tcache_alloc_small (zero=false, size=64,
tcache=0x7f016b406000) at include/jemalloc/internal/tcache.h:303
#9  je_arena_malloc (try_tcache=true, zero=false, size=<optimized out>,
arena=0x0) at include/jemalloc/internal/arena.h:957
#10 je_imalloct (arena=0x0, try_tcache=true, size=<optimized out>) at
include/jemalloc/internal/jemalloc_internal.h:771
#11 je_imalloc (size=<optimized out>) at
include/jemalloc/internal/jemalloc_internal.h:780
#12 malloc (size=<optimized out>) at src/jemalloc.c:929
#13 0x00000000011ce169 in ut_allocator<unsigned char>::allocate
(this=this at entry=0x7f01977f7930, n_elements=32, file=file at entry=0x159f298
"/git/PS-5.7_opt/storage/innobase/fil/fil0fil.cc", throw_on_error=false,
set_to_zero=false, hint=0x0) at
/git/PS-5.7_opt/storage/innobase/include/ut0new.h:349
#14 0x00000000011d9e2d in fil_flush_file_spaces
(purpose=purpose at entry=FIL_TYPE_TABLESPACE)
at /git/PS-5.7_opt/storage/innobase/fil/fil0fil.cc:5946
#15 0x00000000011685d9 in buf_dblwr_update (bpage=bpage at entry=0x7f019cd07740,
flush_type=flush_type at entry=BUF_FLUSH_LIST) at
/git/PS-5.7_opt/storage/innobase/buf/buf0dblwr.cc:750
#16 0x0000000001177506 in buf_flush_write_complete
(bpage=bpage at entry=0x7f019cd07740)
at /git/PS-5.7_opt/storage/innobase/buf/buf0flu.cc:809
#17 0x000000000115f511 in buf_page_io_complete (bpage=0x7f019cd07740,
evict=evict at entry=false) at
/git/PS-5.7_opt/storage/innobase/buf/buf0buf.cc:6030
#18 0x00000000011d24af in fil_aio_wait (segment=segment at entry=7) at
/git/PS-5.7_opt/storage/innobase/fil/fil0fil.cc:5754
#19 0x00000000010c07b0 in io_handler_thread (arg=<optimized out>) at
/git/PS-5.7_opt/storage/innobase/srv/srv0start.cc:330
#20 0x00007f01cabf0dc5 in start_thread (arg=0x7f01977f8700) at
pthread_create.c:308
#21 0x00007f01c904f21d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

This looks highly like to be jemalloc bug - agreed?

Can I provide any other info to report this? Is this list notification
sufficient?

-- 

Kind Regards,
God Bless,
-- 
Roel Van de Paar, CMDBA/CMDEV Senior QA Lead, Percona
Tel: +61 2 8004 1288 (UTC+10)
Mob: +61 427 141 635 (UTC+10)
Skype: percona.rvandepaar
http://www.percona.com/services.html

Looking for Replication with Data Consistency?
Try Percona XtraDB Cluster
<http://www.percona.com/software/percona-xtradb-cluster>!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://jemalloc.net/mailman/jemalloc-discuss/attachments/20160127/3c093c32/attachment.html>