Comments (7)
OK, the Problem isn’t how much total memory is critical (that’s why you calculation didn’t work). The Problem is that with lots of RAM, memory management not working correctly (I think that problematic was VCACHE.VXD driver – but I’m not sure) and sometimes it hit something important and with lots of VRAM (which is permanently mapped in system memory = 1 G of 4 G 32bit space total) it’ll hit something important faster.
Fortunately, there is patch by R. Loew, so reduce RAM back to 512 MB, apply this patch. You can use this link, which you can type to IE on Windows 98 directly:
http://files.emulace.cz/patchmem.zip
Extract, run patchmem.exe
and after rebooting you should be able to set as much memory as you want. For Windows 9x as every true 32-bit system is maximum about ~3.5 GB.
Alternative to this patch is replacing HIMEM manager and tune cache and swap, VOGONS thread is here: https://www.vogons.org/viewtopic.php?t=48981, but with patch it is simpler and more stable.
Hope, it’ll work for you :-)
from vmdisp9x.
I tested the new version v1.2023.0.10.
Unfortunately, with VRAM > 64 MB it still crashes in VirtualBox with VBoxVGA.
Reverting to a maximum of 64MB solves the issue, though, and the system runs smoothly.
from vmdisp9x.
Hi, thanks for your report. The developer version of VirtualBox is too new for me. Older version (7.0.8 = r156879) works with 128 MB and even 256 MB (Windows 9x has sometimes problems with cards > 128 MB). Could you please try with different adapter (vmsvga/vboxsvga)? (You may need change host type to Linux or Windows 10 to allow that). I'm also not very wise from the log :-( It looks to read/write somewhere there where is not a memory or I/O space, but driver’s errors are usually catches by guest OS.
BTW: I also added note about VRAM size to README = If you don't need 5K resolution and larger, the 64 MB is enough.
from vmdisp9x.
Well, I updated the driver to the version you just released and I also updated virtualbox to 7.0.97 r158251 and this time although it booted, it froze immediately after logging in (and changing adapter doesn't solve the issue).
Reverting to 64MB fixes the issue with any adapter, though.
I'm not really sure why this is happening nor what was changed from r156879 to r157070 and r158251 to cause this behavior.
They're not gonna be of much use anyway, but I'm gonna attach the logs just as a reference.
Windows98SE-2023-07-14-11-23-16.zip
By the way, adding the 64MB VRAM reference in the documentation will definitely help other people potentially facing the same issue, so you did the right thing adding it there.
We added it too in the Windows98 guide on the Virtualbox Forum along with a reference to your driver. ;)
from vmdisp9x.
Thanks, for test and suggestion - I added information to readme here and to SoftGPU readme too (https://github.com/JHRobotics/softgpu#virtualbox-vm-setup-with-hw-acceleration) until I won't be able to replicate and solve issue.
And many thanks to post my project to VirtualBox forum!
PS: looks like you're using 1 GB RAM. Can you please try my driver with 128 MB VRAM and 512 MB or 256 MB RAM? Windows 9x usually have strange problems if memory exceed 512 MB (depends on HW configuration), for me though 1 GB RAM works, but it would still be worth testing.
from vmdisp9x.
You're actually correct!
Looks like 1GB of RAM was the culprit.
Virtualbox: 7.0.97 r158251
RAM: 1024 MB
VRAM: 64 MB
Status: Stable
Virtualbox: 7.0.97 r158251
RAM: 1024 MB
VRAM: 128 MB
Status: Unstable (Freeze/Crash)
Virtualbox: 7.0.97 r158251
RAM: 512 MB
VRAM: 128 MB
Status: Stable
Virtualbox: 7.0.97 r158251
RAM: 512 MB
VRAM: 128 MB
Status: Stable
Now, with a simple calculation, we can see that 1024+64=1088 total, which means that in theory 1024-64=960, so the following configuration is supposed to be stable:
Virtualbox: 7.0.97 r158251
RAM: 960 MB
VRAM: 128 MB
Status: Unstable (Freeze/Crash)
In particular, as soon as the user logs in:
from vmdisp9x.
I can't believe it worked.
Not only it worked and I can use 128MB of VRAM, but I can also use 3.5 GB of RAM as a real 32bit OS.
Never in my wildest dream I thought I was gonna get Win98 to be stable with that much ram!
I've been playing around, readapting an older version of one of my functions for pure fun and so far so good, I mean the system looks really stable!
Very very very nice.
Thank you so much, closing the issue now. Amazing. :)
from vmdisp9x.
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from vmdisp9x.