Hi,
Using the latest Qemu2 and Seabios1.7.4 (I've tried stable and git for both) -- I still have this issue with QEMU hanging on display.sys with MSDOS 6.2 I can confirm on all compiled sources the structs already had your "PACKED" patch applied
If I swap out vgabios-cirrus.bin for the older lgplvgabios ( savannah.gnu.org/download/vgabios/vgabios-0.7a.cirrus.bin) it boots OK with "-vga cirrus"
As requested, below is the debug log from a freshly compiled QEMU2. It sits at 100% cpu when MSDOS tries to load display.sys. I also took the same log file from a successful boot with 0.7a vgabios. Please let me know if you want that posting here too.
Thanks for your time!
------ Log file using -chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios ------
Start bios (version rel-1.7.4-0-g96917a8-20140501_004118-e6540) No Xen hypervisor found. Running on QEMU (i440fx) RamSize: 0x02000000 [cmos] Relocating init from 0x000dfe89 to 0x01fdf190 (size 69036) Found QEMU fw_cfg RamBlock: addr 0x0000000000000000 len 0x0000000002000000 [e820] CPU Mhz=2651 === PCI bus & bridge init === PCI: pci_bios_init_bus_rec bus = 0x0 === PCI device probing === Found 4 PCI devices (max PCI bus is 00) === PCI new allocation pass #1 === PCI: check devices === PCI new allocation pass #2 === PCI: 32: 0000000080000000 - 00000000fec00000 PCI: map device bdf=00:01.1 bar 4, addr 0000c000, size 00000010 [io] PCI: map device bdf=00:02.0 bar 6, addr febe0000, size 00010000 [mem] PCI: map device bdf=00:02.0 bar 1, addr febf0000, size 00001000 [mem] PCI: map device bdf=00:02.0 bar 0, addr fc000000, size 02000000 [prefmem] PCI: init bdf=00:00.0 id=8086:1237 PCI: init bdf=00:01.0 id=8086:7000 PIIX3/PIIX4 init: elcr=00 0c PCI: init bdf=00:01.1 id=8086:7010 PCI: init bdf=00:02.0 id=1013:00b8 PCI: Using 00:02.0 for primary VGA Found 1 cpu(s) max supported 1 cpu(s) MP table addr=0x000f0b70 MPC table addr=0x000f0b80 size=192 SMBIOS ptr=0x000f0b50 table=0x000f0a20 size=304 Scan for VGA option rom Running option rom at c000:0003 Start SeaVGABIOS (version rel-1.7.4-0-g96917a8-20140203_153423-nilsson.home.kraxel.org) enter vga_post: a=00000010 b=0000ffff c=00000000 d=0000ffff ds=0000 es=f000 ss=0000 si=00000000 di=00006580 bp=00000000 sp=00006d1a cs=f000 ip=d256 f=0000 cirrus init cirrus init 2 Attempting to allocate VGA stack via pmm call to f000:d2ce pmm call arg1=0 VGA stack allocated at ed790 Turning on vga text mode console set VGA mode 3 cirrus mode switch regular SeaBIOS (version rel-1.7.4-0-g96917a8-20140501_004118-e6540) Found 1 lpt ports Found 1 serial ports Searching bootorder for: /pci@i0cf8/isa@1/fdc@03f0/floppy@0 ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9) ATA controller 2 at 170/374/0 (irq 15 dev 9) ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (512 MiBytes) Searching bootorder for: /pci@i0cf8/*@1,1/drive@0/disk@0 DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD] Searching bootorder for: /pci@i0cf8/*@1,1/drive@1/disk@0 PS2 keyboard initialized All threads complete. Scan for option roms Searching bootorder for: /rom@genroms/kvmvapic.bin Searching bootorder for: HALT drive 0x000f09a0: PCHS=1040/16/63 translation=none LCHS=1024/16/63 s=1048576 Running option rom at c900:0003 Space available for UMB: cb800-ec800, f0000-f0940 Returned 65536 bytes of ZoneHigh e820 map has 5 items: 0: 0000000000000000 - 000000000009fc00 = 1 RAM 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED 3: 0000000000100000 - 0000000002000000 = 1 RAM 4: 00000000fffc0000 - 0000000100000000 = 2 RESERVED enter handle_19: NULL Booting from Hard Disk... Booting from 0000:7c00
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Dennis Waters