Date: Fri, 29 Aug 2014 17:43:18 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: gjb@FreeBSD.org Cc: stable@FreeBSD.org, ian@FreeBSD.org Subject: Re: building an 8.4-STABLE i386 poudriere jail on an 10.0-STABLE amd64 host Message-ID: <201408300043.s7U0hIXf073387@gw.catspoiler.org> In-Reply-To: <201408292318.s7TNIjMI073287@gw.catspoiler.org>
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On 29 Aug, Don Lewis wrote:
> With the patch below, I get further, but now lint is core getting
> SIGBUS.
>
> ===> usr.bin/xlint/llib (all)
> lint -cghapbx -Cposix /var/poudriere/jails/84STABLEi386/usr/src/usr.bin/xlint/llib/llib-lposix
> llib-lposix:
> lint: /usr/obj/i386/var/poudriere/jails/84STABLEi386/usr/src/tmp/usr/libexec/lint1 got signal 10
> *** Error code 1
> 1 error
> *** Error code 2
> 1 error
> *** Error code 2
> 1 error
> *** Error code 2
> 1 error
> *** Error code 2
> 1 error
> *** [buildworld] Error code 2
> 1 error
> ====>> Error: Failed to 'make buildworld'
I simplified things a bit and am now just doing normal crossbuilds. I'm
still seeing core dumps, even on amd64 -> amd64 crossbuilds. I'm not
seeing a reason, though ...
# gdb /usr/obj/tmp/stable8/tmp/usr/libexec/lint1 /usr/obj/tmp/stable8/usr.bin/xlint/llib/lint1.core
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `lint1'.
Program terminated with signal 10, Bus error.
#0 0x000000000040b061 in getcnode (tp=0x800c1f400, v=0x800c08160)
at /tmp/stable8/usr.bin/xlint/lint1/tree.c:260
260 n->tn_val->v_u = v->v_u;
(gdb) list
255 n->tn_op = CON;
256 n->tn_type = tp;
257 n->tn_val = tgetblk(sizeof (val_t));
258 n->tn_val->v_tspec = tp->t_tspec;
259 n->tn_val->v_ansiu = v->v_ansiu;
260 n->tn_val->v_u = v->v_u;
261 free(v);
262 return (n);
263 }
264
(gdb) print n
$1 = (tnode_t *) 0x80068f000
(gdb) print v
$2 = (val_t *) 0x800c08160
(gdb) print *n
$3 = {tn_op = CON, tn_type = 0x800c1f400, tn_lvalue = 0, tn_cast = 0,
tn_parn = 0, tn_u = {tn_s = {_tn_left = 0x80068f028, _tn_right = 0x0},
_tn_sym = 0x80068f028, _tn_val = 0x80068f028, _tn_strg = 0x80068f028}}
(gdb) print *v
$4 = {v_tspec = INT, v_ansiu = 0, v_u = {_v_quad = 128,
_v_ldbl = 4.6658554008095674912363595950328574e-4949}}
(gdb) print *n->tn_u._tn_val
$5 = {v_tspec = INT, v_ansiu = 0, v_u = {_v_quad = 0, _v_ldbl = 0}}
(gdb) print v->v_u
$6 = {_v_quad = 128, _v_ldbl = 4.6658554008095674912363595950328574e-4949}
(gdb) print n->tn_u._tn_val->v_u
$7 = {_v_quad = 0, _v_ldbl = 0}
Looks like all the pointers are OK, so why the SIGBUS?
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