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

[Samuel Thibault]

Bleh, I missed adding your name to these commits.

Sorry, there's way too much in my mbox plate not to make mistakes :/

Samuel

Almudena Garcia, le mar. 25 oct. 2022 12:03:06 +0000, a ecrit:
> 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