NetBSD Problem Report #55844
From www@netbsd.org Sat Dec 5 09:51:38 2020
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Date: Sat, 5 Dec 2020 09:51:37 +0000 (UTC)
From: jbryn@students.wcpss.net
Reply-To: jbryn@students.wcpss.net
To: gnats-bugs@NetBSD.org
Subject: siag in misc/siag causes SIGSEGV with SSE2 on i386, using gcc10, egon also has SIGSEGV
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>Number: 55844
>Category: pkg
>Synopsis: siag in misc/siag causes SIGSEGV with SSE2 on i386, using gcc10, egon also has SIGSEGV
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: pkg-manager
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Dec 05 09:55:00 +0000 2020
>Originator: Jackson Bryn
>Release: NetBSD-current 9.99.76, pkgsrc/current 12/5/20
>Organization:
N/A
>Environment:
NetBSD build.localdomain 9.99.76 NetBSD 9.99.76 (Generic) #0: Mon Nov 30 07:53:42 UTC 2020 mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/i386/compile/GENERIC i386
>Description:
Tested on a Haswell CPU in 32-bit mode, -march=bonnell, -mtune=bonnell, -O2, and -pipe.
While the crash in siag is fixable (disable SSE2 with -mno-sse2), the crash in egon is unknown. It can't be fixed with -O0 and -march/mtune=i486, nor does -fno-toplevel-reorder and -fcommon fix it.
>How-To-Repeat:
1. Launch siag on an SSE2 build and enter a value.
2. Launch egon.
>Fix:
(Contact us)
$NetBSD: query-full-pr,v 1.46 2020/01/03 16:35:01 leot Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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