DOS ain't dead

GVFM 2.66 beta /"Drive A" bug (Announce)

posted by jaybur  , UK, 28.12.2007, 05:27
(edited by jaybur on 28.12.2007, 05:54)

> And I found one bug - if I try to select 32-bit videomode with LFB
> enabled, GVFM crashes and reboots computer.

Just a thought - did GVFM 2.65 or earlier crash as well? If not then I think it's because 2.66 is compiled so that every memory allocation of 128 bytes or more gets its own selector, to make GVFM is very sensitive to buffer overruns. A high-res 32bpp graphics mode will need a lot of selectors, so you might have run out of them. When this happens, the BP7 memory manager goes tits-up.

[edit]

I've just tested on my 32bpp capable machine, and everything works fine, so I think you can ignore the above.

Complete thread:

• Graphic Vision File Manager 2.65 - jaybur, 22.12.2007, 19:21 (Announce)
  • Graphic Vision File Manager 2.65 | "A"-bug - DOS386, 22.12.2007, 20:52
    • Graphic Vision File Manager 2.65 | "A"-bug - jaybur, 22.12.2007, 21:18
      • Graphic Vision File Manager 2.65 | "A"-bug - DOS386, 22.12.2007, 21:41
        • Graphic Vision File Manager 2.65 | "A"-bug - jaybur, 22.12.2007, 21:56
    • Graphic Vision File Manager 2.65 | "A"-bug - Steve, 23.12.2007, 04:58
    • GVFM 2.65 | "A"-bug | FreeDOS "Sep. 15" kernel - Rugxulo, 24.12.2007, 14:32
      • GVFM 2.65 | "A"-bug | FreeDOS "Sep. 15" kernel - jaybur, 26.12.2007, 17:16
  • GVFM 2.66 beta /"Drive A" bug - jaybur, 26.12.2007, 17:42
    • GVFM 2.66 beta / "Drive A" bug / DEC CX LOOP @b - DOS386, 26.12.2007, 22:36
    • GVFM 2.66 beta /"Drive A" bug - Laaca, 27.12.2007, 23:04
      • GVFM 2.66 beta /"Drive A" bug - jaybur, 28.12.2007, 03:47
      • GVFM 2.66 beta /"Drive A" bug - jaybur, 28.12.2007, 05:27
        • GVFM 2.66 beta /"Drive A" bug - Laaca, 28.12.2007, 17:15
          • GVFM 2.66 beta /"Drive A" bug - jaybur, 28.12.2007, 18:56