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From: Carl Chave <online@chave.us>
Date: Thu, 20 Feb 2020 18:30:14 -0500
Message-ID: <CAGP1gyOqtWMGrbx1Cm2i5up3FGQU3qRyVsXz5LhudnL7J-HOQA@mail.gmail.com>
Subject: Re: APK Package Name Issue on armel port
To: Timo Teras <timo.teras@iki.fi>
Cc: ~alpine/apk-tools@lists.alpinelinux.org
Content-Type: text/plain; charset="UTF-8"

Timo,

I'm not very familiar with using gdb.  See below and please let me
know how to get you better information.

localhost:~# gdb /usr/lib/debug/sbin/apk.debug
GNU gdb (GDB) 8.3.1
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.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 copying" and "show warranty" for details.
This GDB was configured as "armv5-alpine-linux-musleabi".
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 /usr/lib/debug/sbin/apk.debug...
(gdb) run
Starting program: /usr/lib/debug/sbin/apk.debug
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
Warning:
Cannot insert breakpoint -1.
Cannot access memory at address 0x46ac

(gdb) backtrace
#0  0x76fb58e0 in ?? ()
#1  0x00000000 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

On Wed, Feb 19, 2020 at 3:25 AM Timo Teras <timo.teras@iki.fi> wrote:
>
> Hi,
>
> On Tue, 18 Feb 2020 18:47:21 -0500
> Carl Chave <online@chave.us> wrote:
>
> > > Timo, I think you nailed it!  Seems to be working.  I will recreate
> > > the root filesystem with the patched apk-tools and follow your
> > > advice about using:
> > > echo 4 > /proc/cpu/alignment
> >
> > Hi Timo, I did some more testing tonight with the patched apk-tools
> > and while things have improved, there still appears to be some issues
> > lurking:
> >
> > localhost:~# echo 4 > /proc/cpu/alignment
> >
> > localhost:~# cat /proc/cpu/alignment
> > User:        259
> > System:        0 (0x0)
> > Skipped:    0
> > Half:        0
> > Word:        0
> > DWord:        0
> > Multi:        0
> > User faults:    4 (signal)
> >
> > localhost:~# apk list
> > Bus error
>
> Now you have signal sent to the process. Could you use gdb to get a
> backtrace? That would help identify where the problem is.
>
> Thanks
>