>
> This doesn't help a lot. How about building bash-4.2.42 with -g so
> debugging symbols are preserved, then seeing where the crash is?
>
I compiled 4.2.42 using gcc 4.6.3 (C[XX]FLAGS="-march=native -O2 -g"). It
took longer before the crash occurred and this is the report I got:
malloc: ./read.def:696: assertion botched
free: called with already freed block argument
Aborting...catch.
Program received signal SIGABRT, Aborted.
0x00007ffff760eaa5 in raise () from /lib64/libc.so.6
(gdb) bt
#0 0x00007ffff760eaa5 in raise () from /lib64/libc.so.6
#1 0x00007ffff760fda5 in abort () from /lib64/libc.so.6
#2 0x000000000043f1af in programming_error (format=<optimized out>) at
error.c:176
#3 0x00000000004abe05 in internal_free (mem=0x703388, file=0x4c2768
"./read.def", line=696,
flags=<optimized out>) at malloc.c:876
#4 0x000000000047ad7a in read_builtin (list=0x0) at ./read.def:696
#5 0x0000000000432e36 in execute_builtin (builtin=0x479960 <read_builtin>,
flags=<optimized out>,
subshell=<optimized out>, words=<optimized out>) at execute_cmd.c:4109
#6 0x00000000004360a5 in execute_builtin_or_function (flags=0,
fds_to_close=0x7029c8,
redirects=<optimized out>, var=0x0, builtin=0x479960 <read_builtin>,
words=0x7030e8)
at execute_cmd.c:4534
#7 execute_simple_command (fds_to_close=0x7029c8, async=0, pipe_out=-1,
pipe_in=-1, simple_command=0x0)
at execute_cmd.c:3944
#8 execute_command_internal (command=0x702708, asynchronous=<optimized
out>, pipe_in=<optimized out>,
pipe_out=<optimized out>, fds_to_close=0x7029c8) at execute_cmd.c:735
#9 0x00000000004389d3 in execute_connection (command=0x702848,
asynchronous=0, pipe_in=-1, pipe_out=-1,
fds_to_close=0x7029c8) at execute_cmd.c:2326
#10 0x000000000043462a in execute_command_internal (command=0x702848,
asynchronous=<optimized out>,
pipe_in=-1, pipe_out=-1, fds_to_close=0x7029c8) at execute_cmd.c:891
#11 0x0000000000437ede in execute_command (command=0x702848) at
execute_cmd.c:382
#12 0x0000000000438745 in execute_while_or_until (while_command=0x702888,
type=0) at execute_cmd.c:3202
#13 0x0000000000434a9b in execute_while_command (while_command=<optimized
out>) at execute_cmd.c:3148
#14 execute_command_internal (command=0x7028c8, asynchronous=<optimized
out>, pipe_in=-1, pipe_out=-1,
fds_to_close=0x7027e8) at execute_cmd.c:831
#15 0x0000000000437ede in execute_command (command=0x7028c8) at
execute_cmd.c:382
#16 0x000000000042242d in reader_loop () at eval.c:152
#17 0x0000000000420cc8 in main (argc=2, argv=0x7fffffffdb68,
env=0x7fffffffdb80) at shell.c:749
(gdb)
I remember compiling a debug-enabled build of bash before and it was the
same as what I got.
> Chet
>
