Date: Tue, 13 Jan 2004 02:38:40 -0800 (PST) From: Alexander Krotov <ank@despammed.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/61306: many binaries crash with "illegal instruction" message (ldexp) Message-ID: <200401131038.i0DAcen5040577@www.freebsd.org> Resent-Message-ID: <200401131040.i0DAeD6X057191@freefall.freebsd.org>
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>Number: 61306
>Category: i386
>Synopsis: many binaries crash with "illegal instruction" message (ldexp)
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jan 13 02:40:13 PST 2004
>Closed-Date:
>Last-Modified:
>Originator: Alexander Krotov
>Release: 5.2-RELEASE
>Organization:
Solid Information Technology Ltd.
>Environment:
FreeBSD kama 5.2-RELEASE FreeBSD 5.2-RELEASE #0: Mon Jan 12 16:18:06 GMT 2004 root@:/usr/src/sys/i386/compile/KAMA i386
CPU: AMD Athlon(TM) XP 1700+ (1466.73-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0x681 Stepping = 1
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,P\
GE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
>Description:
I have installed 5.2 release yesterday and got a lot of problems
with different binaries crashing with "illegal instruction" message.
For example "build world" does not work because awk and troff
crash. fsck_ufs did crash.
>How-To-Repeat:
I have not checked details, this problem might be AMD XP specific.
>Fix:
Quick look into the core files lead me to
/usr/src/lib/libc/i386/gen/ldexp.c
After changing ldexp code like
double
ldexp (double value, int exp)
{
return value*(1<<exp);
/*
double temp, texp, temp2;
texp = exp;
...
*/
}
the problem has gone. Build world works.
>Release-Note:
>Audit-Trail:
>Unformatted:
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