Re: [m5-dev] Review Request: CPU: Fix a case where timing simple cpu faults can nest.

2011-05-03 Thread Gabe Black
--- This is an automatically generated e-mail. To reply, visit: http://reviews.m5sim.org/r/670/#review1190 --- Could you please walk through when two faults will happen at the same

Re: [m5-dev] Review Request: CPU: Fix a case where timing simple cpu faults can nest.

2011-05-03 Thread Ali Saidi
On 2011-05-03 11:13:49, Gabe Black wrote: Could you please walk through when two faults will happen at the same time and why that's a problem? mem op - tlb miss - delayed translation - table walk - fault - fetch - tlb miss - table walk The table walker should never be called twice in

Re: [m5-dev] Review Request: CPU: Fix a case where timing simple cpu faults can nest.

2011-05-03 Thread Gabe Black
On 2011-05-03 11:13:49, Gabe Black wrote: Could you please walk through when two faults will happen at the same time and why that's a problem? Ali Saidi wrote: mem op - tlb miss - delayed translation - table walk - fault - fetch - tlb miss - table walk The table