Re: kern/52628: tracing 32-bit application on 64-bit kernel panic

[Kamil Rytarowski <n54%gmx.com@localhost>]

The following reply was made to PR kern/52628; it has been noted by GNATS.

From: Kamil Rytarowski <n54%gmx.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/52628: tracing 32-bit application on 64-bit kernel panic
Date: Thu, 19 Oct 2017 11:41:24 +0200

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 From: Kamil Rytarowski <n54%gmx.com@localhost>
 To: gnats-bugs%NetBSD.org@localhost
 Message-ID: <dfc92cfa-d7e5-4068-12e5-3c15c9bc53fc%gmx.com@localhost>
 Subject: Re: kern/52628: tracing 32-bit application on 64-bit kernel panic
 References: <pr-kern-52628%gnats.netbsd.org@localhost>
  <20171019091608.D07C37A295%mollari.NetBSD.org@localhost>
  <20171019093001.BF8F77A295%mollari.NetBSD.org@localhost>
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 On 19.10.2017 11:30, Martin Husemann wrote:
 > The following reply was made to PR kern/52628; it has been noted by GNA=
 TS.
 >=20
 > From: Martin Husemann <martin%duskware.de@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc:=20
 > Subject: Re: kern/52628: tracing 32-bit application on 64-bit kernel pa=
 nic
 > Date: Thu, 19 Oct 2017 11:27:07 +0200
 >=20
 >  On Thu, Oct 19, 2017 at 09:20:00AM +0000, n54%gmx.com@localhost wrote:
 >  > >How-To-Repeat:
 >  > gcc test.c -m32 -o test
 >  > gdb ./test
 > =20
 >  I can not quite reproduce it:
 > =20
 >  [/tmp] martin@seven-days-to-the-wolves > file test
 >  test: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynami=
 cally linked, interpreter /usr/libexec/ld.elf_so, for NetBSD 8.99.4, not =
 stripped
 >  [/tmp] martin@seven-days-to-the-wolves > uname -a
 >  NetBSD seven-days-to-the-wolves.aprisoft.de 8.99.4 NetBSD 8.99.4 (GENE=
 RIC) #160: Wed Oct 11 12:35:27 CEST 2017  martin@seven-days-to-the-wolves=
 =2Eaprisoft.de:/work/src/sys/arch/amd64/compile/GENERIC amd64
 >  [/tmp] martin@seven-days-to-the-wolves > gdb ./test
 >  GNU gdb (GDB) 7.12
 >  Copyright (C) 2016 Free Software Foundation, Inc.
 >  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gp=
 l.html>
 >  This is free software: you are free to change and redistribute it.
 >  There is NO WARRANTY, to the extent permitted by law.  Type "show copy=
 ing"
 >  and "show warranty" for details.
 >  This GDB was configured as "x86_64--netbsd".
 >  Type "show configuration" for configuration details.
 >  For bug reporting instructions, please see:
 >  <http://www.gnu.org/software/gdb/bugs/>.
 >  Find the GDB manual and other documentation resources online at:
 >  <http://www.gnu.org/software/gdb/documentation/>.
 >  For help, type "help".
 >  Type "apropos word" to search for commands related to "word"...
 >  Reading symbols from ./test...(no debugging symbols found)...done.
 >  (gdb) run
 >  Starting program: /tmp/test=20
 >  Couldn't write registers: Invalid argument.
 >  (gdb)=20
 > =20
 >  Martin
 > =20
 >=20
 
 I observed this already in the past..  I was trying to panic the kernel
 with ATF ptrace(2) tests from i386 on amd64 without success.
 
 I will investigate it later.
 
 
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