[erlang-bugs] beam core'ing

[Musumeci, Antonio S]

I'm just starting to debug this but figured I'd send it along in case anyone has seen this before.

64bit RHEL 5.0.1

built from source beam.smp R15B02

Happens consistently when trying to start our app and then just stops after a time. Across a few boxes. Oddly we have an identical cluster (hw and sw) and it never happens.

#0 bf_unlink_free_block (flags=<optimized out>, block=0x6f00, allctr=<optimized out>) at beam/erl_bestfit_alloc.c:789
#1 bf_get_free_block (allctr=0x6824600, size=304, cand_blk=0x0, cand_size=<optimized out>, flags=0) at beam/erl_bestfit_alloc.c:869
#2 0x000000000045343c in mbc_alloc_block (alcu_flgsp=<optimized out>, blk_szp=<optimized out>, size=<optimized out>, allctr=<optimized out>) at beam/erl_alloc_util.c:1198
#3 mbc_alloc (allctr=0x6824600, size=295) at beam/erl_alloc_util.c:1345
#4 0x000000000045398d in do_erts_alcu_alloc (type=164, extra=0x6824600, size=295) at beam/erl_alloc_util.c:3442
#5 0x0000000000453a0f in erts_alcu_alloc_thr_pref (type=164, extra=<optimized out>, size=287) at beam/erl_alloc_util.c:3520
#6 0x0000000000511463 in erts_alloc (size=287, type=<optimized out>) at beam/erl_alloc.h:208
#7 erts_bin_nrml_alloc (size=<optimized out>) at beam/erl_binary.h:260
#8 erts_bs_append (c_p=0x69fba60, reg=<optimized out>, live=<optimized out>, build_size_term=<optimized out>, extra_words=0, unit=8) at beam/erl_bits.c:1327
#9 0x000000000053ffd8 in process_main () at beam/beam_emu.c:3858
#10 0x00000000004ae853 in sched_thread_func (vesdp=<optimized out>) at beam/erl_process.c:5184
#11 0x00000000005c17e9 in thr_wrapper (vtwd=<optimized out>) at pthread/ethread.c:106
#12 0x00002b430f39e73d in start_thread () from /lib64/libpthread.so.0
#13 0x00002b430f890f6d in clone () from /lib64/libc.so.6
#14 0x0000000000000000 in ?? ()

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