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From: Erich Focht <efocht@ess.nec.de>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] SIGILL errors in strncpu (NAT consumption)
Date: Wed, 03 Apr 2002 21:29:58 +0000	[thread overview]
Message-ID: <marc-linux-ia64-105590701905370@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590701905358@msgid-missing>

> Has anyone seen random SIGILL failures in the strncpy
> function in glibc-2.2.4-19.3?
>
> The failure is caused by a NAT consumption fault in the 
> code sequence shown below. 

I've seen NaT consumption faults with an ISV application in a loop
involving speculative loads, too. It was very hard to trace back (occured
at different simulation times in a huge case) and disappeared after we
rewrote the loop and used the latest Intel Fortran compiler. It occured
with both B3 and C0 CPUs under 2.4.7 and 2.4.17. I don't have a testcase
for this, sorry.

Regards,
Erich




  parent reply	other threads:[~2002-04-03 21:29 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-02  3:11 [Linux-ia64] SIGILL errors in strncpu (NAT consumption) Jack Steiner
2002-04-02  3:46 ` Jack Steiner
2002-04-03 21:29 ` Erich Focht [this message]
2002-04-03 21:43 ` Jack Steiner
2002-04-03 22:10 ` David Mosberger
2002-04-04  8:36 ` Francois-Xavier Kowalski
2002-04-04 10:29 ` Hideki Yamamoto
2002-04-04 15:54 ` David Mosberger
2002-04-04 18:44 ` David Mosberger
2002-04-04 19:27 ` Erich Focht
2002-04-04 19:31 ` David Mosberger
2002-04-04 21:26 ` Erich Focht
2002-04-05  3:44 ` Hideki Yamamoto
2002-04-05 21:27 ` David Mosberger

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