On Tue, Feb 05, 2019 at 10:31:24AM +0100, Thomas Huth wrote: > On 2019-02-05 08:52, Gerd Hoffmann wrote: > > On Mon, Feb 04, 2019 at 04:10:37PM +0100, Thomas Huth wrote: > >> > >> Hi Gerd, > >> > >> I noticed that certain FreeDOS images are not working correctly anymore > >> with the current version of QEMU, for example > >> http://www.qemu-advent-calendar.org/2016/download/day10.tar.xz ... It > >> aborts with: > >> > >> Error reading from drive C: DOS area: write-protection violation attempted > >> > >> I've bisected the issue, and it has apparently been introduced with: > >> > >> cd1bfd5ef336166b275a09dc9842542bf5e63ae3 > >> seabios: update bios and vgabios binaries > >> > >> Any idea what might be going wrong here? > > > > Hmm, no. bisect seabios? > > I haven't bisected yet, but it seems to be related to CONFIG_ATA_DMA=y > in our roms/config.seabios-128k config file. When I switch that to "n", > then the old FreeDOS disks are working again...
Hmm, guess I should turn that off again on the next update (there will be a seabios 1.12.1 release before qemu 4.0). cheers, Gerd