Search found 531 matches

by andymc
Wed Feb 05, 2020 1:49 pm
Forum: General
Topic: Visopsys 0.85 Released
Replies: 2
Views: 192

Re: Visopsys 0.85 Released

Hi Ron, Ahh, ha ha, no. I'm not quite sure how I'd even go about that. The majority of the code is in the monolithic kernel, which is fairly hierarchically flat. A meaningful diagram would have to describe a sequence of things that happen at initialization. It's like a big library after that - kind ...
by andymc
Fri Jan 31, 2020 4:58 pm
Forum: General
Topic: Bug reporting thread
Replies: 47
Views: 44964

Re: Bug reporting thread

It might be worth trying the new 0.85 release. I did a bunch of work on the APIC driver and interrupt infrastructure, and definitely solved some problems (for example, it can now boot on my own dev workstation)
by andymc
Sun Jan 26, 2020 12:33 am
Forum: General
Topic: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive
Replies: 21
Views: 5040

Re: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive

Visopsys gets its IRQ routing info from the multiprocessor tables (not ACPI), if that helps. By the way, your 0.85 floppy still doesn't boot if embedded to a BIOS (same errors as your previous releases), so I don't know if your special code - which made 2019-08-09 floppy working as a part of BIOS - ...
by andymc
Fri Jan 24, 2020 12:43 am
Forum: Partition Logic
Topic: Is it possible to PXE boot Partition Logic /Visopsys?
Replies: 5
Views: 5461

Re: Is it possible to PXE boot Partition Logic /Visopsys?

If anyone here is still interested, the newly-released version 0.85 may do what's required here. I implemented it for Coreboot/SeaBIOS support: if you create a file /ramdisk in the root of the floppy disk image, the loader will load the boot medium into memory and pass the address to the kernel, whi...
by andymc
Fri Jan 24, 2020 12:40 am
Forum: Partition Logic
Topic: Partition Logic 0.85 Released
Replies: 0
Views: 73

Partition Logic 0.85 Released

It's been a while, so it's time for a major update! Version 0.85 is now available from the download page: https://partitionlogic.org.uk/download/ Overview: This major release offers an updated look, touchscreen support, better widescreen viewing, and improved performance. It includes FAT filesystem ...
by andymc
Tue Jan 21, 2020 11:19 am
Forum: General
Topic: Visopsys 0.85 Released
Replies: 2
Views: 192

Visopsys 0.85 Released

Hello all, As always, I've still got a few more things to finish for 0.9, but in the meantime here's a roll-up of all the things I've back-ported to the 0.8x branch. From the changelog: Overview: This maintenance release adds RAM disk boot support, RAM disk backing for temporary files in read-only m...
by andymc
Thu Jan 09, 2020 11:28 pm
Forum: General
Topic: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive
Replies: 21
Views: 5040

Re: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive

Sorry for the delay. The patches ended up being quite large, mostly because I'm fussy about my code, and ended up rearranging and reformatting a bunch of (mostly older) stuff. Here's your first link. This is just a debug USB image with my latest code - just in case I've already solved the problem. T...
by andymc
Thu Jan 02, 2020 8:49 pm
Forum: General
Topic: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive
Replies: 21
Views: 5040

Re: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive

Yes, I am ready to test the new images. Wish you a Happy New Year ! :) Happy new year to you as well. OK cool, I'm just integrating a few patches (all improvements related to this investigation). I hope to finish that tonight or tomorrow night, and then I'll post one or more images for you to try. ...
by andymc
Wed Dec 18, 2019 1:02 am
Forum: General
Topic: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive
Replies: 21
Views: 5040

Re: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive

Yes, I could debug it using a USB. Will be waiting patiently for your USB debug image ;) So after disabling all the PCI interrupts by default: Apparently, yes, on this machine my IDE controller is actually going wild with interrupts, and the OHCI and XHCI USB controllers are doing a few unexpected ...
by andymc
Mon Dec 16, 2019 1:16 am
Forum: General
Topic: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive
Replies: 21
Views: 5040

Re: Visopsys 0.84+ (2019-08-09) cannot detect a harddrive

Update: still working on this, but it's a MOFO tricky one. It's like legitimate devices are interrupting legitimately, but the interrupt service routines (ISRs) of several PCI drivers (IDE, different USB ones) aren't recognizing them, and then complaining about missed interrupts. Very weird, doesn'...