On Mon, 2 Jan 2006, Julien Cristau wrote:
Hi,
I reproduced this and tried to debug with gdb, but I didn't find any
obvious bug, so I'll cc: debian-sparc for their help.
The bus error seems to happen in caml_format_float (from
byterun/floats.c in the ocaml source); gdb gives the following:
(gdb) run
Starting program: /tmp/missinglib-0.4.10.debian/test/runtests.opt
........................................................
Program received signal SIGBUS, Bus error.
0x0005f698 in caml_format_float ()
(gdb) where
#0 0x0005f698 in caml_format_float ()
#1 0x0006a3ec in caml_c_call ()
0x0005f680 <caml_format_float+240>: call 0x5d110 <caml_stat_alloc>
0x0005f684 <caml_format_float+244>: nop
0x0005f688 <caml_format_float+248>: mov %o0, %l0
0x0005f68c <caml_format_float+252>: mov %l0, %o0
0x0005f690 <caml_format_float+256>: mov %i0, %o1
0x0005f694 <caml_format_float+260>: call 0x7d814 <sprintf>
0x0005f698 <caml_format_float+264>: ldd [ %i1 ], %o2
0x0005f69c <caml_format_float+268>: call 0x5d3d4 <caml_copy_string>
ldd is a double-word load, so the first argument (the memory location)
must be double-word aligned. I bet it's not (what's the value of %i1?) and
that's what causes the bus error.
Best regards,
Jurij Smakov [EMAIL PROTECTED]
Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC
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