Re: [PATCH 0/12 - gnumach] SMP almost working!

[Almudena Garcia]

Btw. Samuel, when you will apply these patches, could you add my name together 
the Damien's name as commit's author? 

In patches  2, 4, 8, 9, 10 and 12.  These are based in my previous work. 

El martes 25 de octubre de 2022, Damien Zammit escribió:
> This patch series is based on Almu's work on SMP,
> with additional work by me and refactored for upstream.
> 
> My goal is to have --enable-ncpus=X and --{enable/disable}-apic
> working with X >= 1.  That means PIC should still work with SMP on i386.
> 
> With --enable-ncpus=1 and --disable-apic
> it still works as before.
> 
> With --enable-ncpus=2 and --disable-apic
> it hangs at boot with -smp 1 (timer routing issue?)
> 
> With --enable-ncpus=2 and --enable-apic
> it general protection faults with -smp 1 or 2 (nested interrupts?)
> 
> The first 6 patches are independent from each other
> and quite small:
> [PATCH 01/12] kdb: Fix TODO for multiprocessor
> [PATCH 02/12] kern/startup: Disable interrupts before starting APs
> [PATCH 03/12] bios32: Use phystokv() on low bios addresses
> [PATCH 04/12] acpi: Add lapic_addr
> [PATCH 05/12] linux: Reduce worst case wait to 10 seconds for disks
> [PATCH 06/12] linux drivers: Don't depend on curr_pic_mask for APIC
> 
> The rest of the patches are to be reviewed in order of increasing
> difficulty:
> [PATCH 07/12] i386/pit: Tune delays
> [PATCH 08/12] i386: Add AP variants of descriptor tables
> [PATCH 09/12] i386: Fix lapic and ioapic for smp
> [PATCH 10/12] Add cpu_number and cpuboot
> [PATCH 11/12] i386: Fix race in multiprocessor ktss
> 
> The last commit is difficult to split up and includes changes in locore.S:
> [PATCH 12/12] i386: Refactor int stacks to be per cpu for SMP
> 
> 
>

-- 
Enviado desde mi dispositivo Sailfish