Bug#878196: libopenmpt0: Illegal instruction on mipsel arch

[Guillaume Perréal]

Hello,
> [...]
>>> Kernel: Linux 4.4.52-gnu (SMP w/4 CPU cores)
>> Where is this kernel from? I note the CPU you are using does not have an
>> FPU, so this could be a bug in the kernel FPU emulator. I can't remember
>> what fixes have gone in since 4.4 though.
> This kernel is provided by the manufacturer of the board. I used this 
> binary to update the firmware : 
> https://github.com/gnubee-git/gnubee-git.github.io/blob/master/debian/librecmc-ramips-mt7621-gb-pc1-squashfs-sysupgrade_2017-07-22.bin. 
> In normal operation, only the bootloader, kernel and initramfs are 
> used. The initramfs pivots to a GNUBEE-ROOT partition if it finds one. 
> The LibreCMC distribution is only used as a fallback.
>
> cat /proc/version
> Linux version 4.4.52-gnu (dgazineu at olimpo) (gcc version 5.4.0 (LEDE 
> GCC 5.4.0 r20-646beea) ) #0 SMP Wed Jul 5 16:50:03 2017
According to 
https://wiki.openwrt.org/doc/howto/building_kernels_for_debian_binaries, 
it is quite possible that this kernel was not compiled with the FPU 
emulator at all. I will try to recompile the kernel with the FPU 
emulation and keep you informed.

Best regards,
Guillaume Perréal.