Hello,

I have been migrating a venerable headless sytem from Debian Wheezy to Devuan.

The migration from Debian Wheezy to Devuan Jessie was fine, however upgrading to
Ascii has failed with Illegal Instruction faults.

I have managed to manually downgrade to Wheezy and the system seems stable
again.

It has an AMD K6 CPU:
processor    : 0
vendor_id    : AuthenticAMD
cpu family    : 5
model        : 8
model name    : AMD-K6(tm) 3D processor
stepping    : 12
microcode    : 0x8b
cpu MHz        : 501.147
cache size    : 64 KB
fdiv_bug    : no
f00f_bug    : no
coma_bug    : no
fpu        : yes
fpu_exception    : yes
cpuid level    : 1
wp        : yes
flags        : fpu vme de pse tsc msr cx8 pge mmx syscall 3dnow k6_mtrr vmmcall
bogomips    : 1002.29
clflush size    : 32
cache_alignment    : 32
address sizes    : 32 bits physical, 32 bits virtual
power management:

I presume a library in Ascii has been compiled for 686. The last part of the
installation log reads:

Preparing to unpack .../rpcbind_0.2.3-0.6_i386.deb ...
Stopping rpcbind daemon....
Unpacking rpcbind (0.2.3-0.6) over (0.2.1-6+deb8u2) ...
Preparing to unpack .../locales_2.24-11+deb9u3_all.deb ...
Unpacking locales (2.24-11+deb9u3) over (2.19-18+deb8u10) ...
Selecting previously unselected package libc-l10n.
Preparing to unpack .../libc-l10n_2.24-11+deb9u3_all.deb ...
Unpacking libc-l10n (2.24-11+deb9u3) ...
Preparing to unpack .../libc6_2.24-11+deb9u3_i386.deb ...
Checking for services that may need to be restarted...
Checking init scripts...
Unpacking libc6:i386 (2.24-11+deb9u3) over (2.19-18+deb8u10) ...
dpkg: warning: subprocess old post-removal script was killed by signal (Illegal instruction)
dpkg: trying script from the new package instead ...
dpkg: error processing archive /var/cache/apt/archives/libc6_2.24-11+deb9u3_i386.deb (--unpack):
subprocess new post-removal script was killed by signal (Illegal instruction)
dpkg: error while cleaning up:
subprocess installed pre-installation script was killed by signal (Illegal instruction)
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for libc-bin (2.19-18+deb8u10) ...
Errors were encountered while processing:
/var/cache/apt/archives/libc6_2.24-11+deb9u3_i386.deb
Log ended: 2018-09-28 11:32:52

Any suggestions for narrowing it down further so I can bug the correct package?

Thanks

Mark