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Postings from September 2012
On Fri, Aug 31, 2012 at 04:25:05PM +0100, Nicholas Clark wrote:
> On Fri, Aug 31, 2012 at 12:23:00PM +1000, tony@develop-help.com wrote:
> > Automated smoke report for 5.17.4 patch 699aa4400b98939bcef01fcacb2a255a3c02576e v5.17.3-184-g699aa44
> > neptune.local: iMac (2.4 GHz) (Intel Core 2 Duo/)
> > on darwin - 12.1.0 (Mac OS X)
> > using cc version 4.2.1 Compatible Apple Clang 4.0 ((tags/Apple/clang-421.0.60))
> > smoketime 5 hours 30 minutes (average 20 minutes 39 seconds)
>
> > O O F F -Duseithreads -Dusemorebits
> > | | | +----- PERLIO = perlio -DDEBUGGING
> > | | +------- PERLIO = stdio -DDEBUGGING
>
...
> That seems to be quite a spectacular run of SEGVs:
> Any idea what it might be? eg, does running any of the failing t/op
> tests under valgrind throw up something immediately obvious?
From op/gmagic:
ok 30
==70619==
==70619== Process terminating with default action of signal 11 (SIGSEGV)
==70619== General Protection Fault
==70619== at 0x1000D9DD3: Perl_sv_force_normal_flags (sv.c:9505)
==70619== by 0x100128101: Perl_leave_scope (scope.c:914)
==70619== by 0x1000D4ED1: Perl_pp_leavesub (pp_hot.c:2528)
==70619== by 0x10009EA8A: Perl_runops_debug (dump.c:2134)
==70619== by 0x100027BE6: Perl_call_sv (perl.c:2676)
==70619== by 0x1000AF568: Perl_magic_methcall (mg.c:1819)
==70619== by 0x1000AFABC: S_magic_methcall1 (mg.c:1856)
==70619== by 0x1000AF9AD: Perl_magic_setpack (mg.c:1914)
==70619== by 0x1000AAAC9: Perl_mg_set (mg.c:281)
==70619== by 0x1000C9BF0: Perl_pp_sassign (pp_hot.c:212)
==70619== by 0x10009EA8A: Perl_runops_debug (dump.c:2134)
==70619== by 0x100026E77: perl_run (perl.c:2392)
From op/auto.t:
ok 39 - zr incr zs (EBCDIC r,s non-contiguous check)
==63109==
==63109== Process terminating with default action of signal 11 (SIGSEGV)
==63109== General Protection Fault
==63109== at 0x1000D9DD3: Perl_sv_force_normal_flags (sv.c:9505)
==63109== by 0x1000F767D: Perl_sv_inc_nomg (sv.c:7910)
==63109== by 0x1000CD41A: Perl_pp_preinc (pp_hot.c:380)
==63109== by 0x10009EA8A: Perl_runops_debug (dump.c:2134)
==63109== by 0x100026E77: perl_run (perl.c:2392)
==63109== by 0x100001779: main (perlmain.c:114)
==63109==
io/defout.t:
1..16
==73082==
==73082== Process terminating with default action of signal 11 (SIGSEGV)
==73082== General Protection Fault
==73082== at 0x1000D9DD3: Perl_sv_force_normal_flags (sv.c:9505)
==73082== by 0x1000E6147: Perl_sv_setsv_flags (sv.c:3910)
==73082== by 0x1000C9BDF: Perl_pp_sassign (pp_hot.c:212)
==73082== by 0x10009EA8A: Perl_runops_debug (dump.c:2134)
==73082== by 0x100026E77: perl_run (perl.c:2392)
==73082== by 0x100001779: main (perlmain.c:114)
==73082==
if(SvTYPE(sv) == SVt_PVGV) {
/* need to keep SvANY(sv) in the right arena */
xpvmg = new_XPVMG();
--> StructCopy(SvANY(sv), xpvmg, XPVMG);
del_XPVGV(SvANY(sv));
SvANY(sv) = xpvmg;
SvFLAGS(sv) &= ~SVTYPEMASK;
SvFLAGS(sv) |= SVt_PVMG;
}
(gdb) print sv->sv_any
$3 = (void *) 0x1008cc118
rip is 0x1000d9dd3
0x00000001000d9dcf <Perl_sv_force_normal_flags+1263>: mov 0x0(%r13),%rcx
-->0x00000001000d9dd3 <Perl_sv_force_normal_flags+1267>: movaps (%rcx),%xmm0
0x00000001000d9dd6 <Perl_sv_force_normal_flags+1270>: movaps 0x10(%rcx),%xmm1
0x00000001000d9dda <Perl_sv_force_normal_flags+1274>: movaps 0x20(%rcx),%xmm2
0x00000001000d9dde <Perl_sv_force_normal_flags+1278>: movaps 0x30(%rcx),%xmm3
0x00000001000d9de2 <Perl_sv_force_normal_flags+1282>: movaps %xmm3,0x30(%rax)
0x00000001000d9de6 <Perl_sv_force_normal_flags+1286>: movaps %xmm2,0x20(%rax)
0x00000001000d9dea <Perl_sv_force_normal_flags+1290>: movaps %xmm1,0x10(%rax)
0x00000001000d9dee <Perl_sv_force_normal_flags+1294>: movaps %xmm0,(%rax)
Tony
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