Re: reliable reproducer, was Re: core dump analysis

On Fri, 21 Apr 2023, Michael Schmitz wrote:

> 
> How often did a page fault happen when executing moveml, in other 
> programs?
> 

The printk() I placed in bus_error030() was conditional on the short word 
at the instruction pointer. It didn't consider all forms of movem, just 
0x48e7 which is the start of "moveml X,%sp@-". This matched page faults in 
many of the programs that executed while booting to single user mode. I 
suppose most of them don't use signal handlers in the same way dash does 
otherwise they would probably be unreliable too.