Re: Kernel crash on qemu-m68k-system while building r-cran packages

[Laurent Vivier <laurent@vivier.eu>]

Le 30/05/2020 à 13:49, John Paul Adrian Glaubitz a écrit :
> Hi Michael!
> 
> On 5/30/20 1:49 AM, Michael Schmitz wrote:
>> Can you try to run that R binary on a real 060 or 040?
> Works fine on elgar:
> 
> root@elgar:~> R


As the package is available, I've been able to reproduce the problem
with logs enabled. Apparently the instruction is not decoded correctly:

----------------
IN:
0x00016a2c:  fmovel #0,%fpsr
Disassembler disagrees with translator over instruction decoding
Please report this to qemu-devel@nongnu.org

OP:
 ld_i32 tmp0,env,$0xfffffffffffffff0
 movi_i32 tmp1,$0x0
 brcond_i32 tmp0,tmp1,lt,$L0

 ---- 00016a2c 00000000
 movi_i32 PC,$0x16a2c
 movi_i32 tmp0,$0x3
 call raise_exception,$0x0,$0,env,tmp0
 set_label $L0
 exit_tb $0x7fc2a0da5643

INT  49331: Address Error(0xc) pc=00016a2c sp=3cc91f30 sr=2004

I try to fix that...

Thanks,
Laurent