http://sourceware.org/bugzilla/show_bug.cgi?id=14201
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2012-06-07 17:52:34
UTC ---
The failure is OS dependent:
#0 sb_scrub_and_add_sb (ptr=0x8196128, s=0xbfffe670)
at /net/gnu-6/export/gnu/import/git/binutils/gas/sb.c:102
#1 0x0805b7c4 in input_scrub_include_sb (from=0xbfffe670,
position=0x81a097b "", is_expansion=1)
at /net/gnu-6/export/gnu/import/git/binutils/gas/input-scrub.c:287
#2 0x08065bee in do_repeat (count=-1, start=0x812e9cd "REPT",
end=0x812e9c8 "ENDR")
at /net/gnu-6/export/gnu/import/git/binutils/gas/read.c:3216
#3 0x08065b3d in s_rept (ignore=0)
at /net/gnu-6/export/gnu/import/git/binutils/gas/read.c:3191
#4 0x08062be9 in read_a_source_file (name=0xbfffea19 "/tmp/x.s")
at /net/gnu-6/export/gnu/import/git/binutils/gas/read.c:1076
#5 0x0804caa3 in perform_an_assembly_pass (argc=0, argv=0x819c7dc)
at /net/gnu-6/export/gnu/import/git/binutils/gas/as.c:1095
#6 0x0804cdf0 in main (argc=2, argv=0x819c7d8)
at /net/gnu-6/export/gnu/import/git/binutils/gas/as.c:1242
(gdb) f 2
#2 0x08065bee in do_repeat (count=-1, start=0x812e9cd "REPT",
end=0x812e9c8 "ENDR")
at /net/gnu-6/export/gnu/import/git/binutils/gas/read.c:3216
3216 input_scrub_include_sb (&many, input_line_pointer, 1);
(gdb) p many
$19 = {
ptr = 0x37c3c008 "\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte
0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n
.byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte 0\n\n .byte
0\n\n .byte 0\n\n .byte 0\n"..., len = 550502400, max = 1073741824}
While holding a 500M sb, we are allocating another 500M sb. And
the first 500M sb will be freed right after it:
input_scrub_include_sb (&many, input_line_pointer, 1);
sb_kill (&many);
Why not reuse the first 500M sb?
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