[LinuxBIOS] LinuxBIOS+FILO hangs on qemu

Tue Sep 5 18:58:05 CEST 2006

Maybe this will help:
http://sourceforge.net/mailarchive/forum.php?thread_id=10216054&forum_id=48022

Roman

On 09/04/2006 13:22, Ed Swierk wrote:
> Hello,
> 
> I'm trying to boot Linux on qemu (0.8.2) with LinuxBIOSv2 (svn 2394)
> and FILO (0.5). I built filo.elf, ran buildtarget emulation/qemu-i386,
> changed Config.lb to use filo.elf as the payload, and built LinuxBIOS.
> I then copied the resulting qemu-bios.rom to bios.bin, and started
> qemu with the -L option to use this bios.bin, and -nographic to use
> the serial console.
> 
> When I try to boot a 2.6 bzImage kernel (using diskboot.img from
> Fedora), FILO gets as far as "Jumping to entry point..." and then
> hangs:
> 
> -----
>> qemu -L ~ -hda diskboot.img -m 256 -nographic -no-kqemu -d in_asm,exec
> (qemu)
> 
> LinuxBIOS-1.1.8-FILO Mon Sep  4 10:07:27 PDT 2006 starting...
> Copying LinuxBIOS to ram.
> Jumping to LinuxBIOS.
> LinuxBIOS-1.1.8-FILO Mon Sep  4 11:01:19 PDT 2006 booting...
> Enumerating buses...
> Finding PCI configuration type.
> PCI: Using configuration type 1
> PCI_DOMAIN: 0000 enabled
> PCI: pci_scan_bus for bus 0
> PCI: 00:00.0 [8086/1237] enabled
> PCI: 00:01.0 [8086/7000] enabled
> PCI: 00:01.1 [8086/7010] enabled
> PCI: 00:01.3 [8086/7113] enabled
> PCI: 00:02.0 [1013/00b8] enabled
> PCI: 00:03.0 [10ec/8029] enabled
> PCI: pci_scan_bus returning with max=00
> done
> Allocating resources...
> Reading resources...
> Done reading resources.
> Setting resources...
> PCI: 00:01.1 20 <- [0x0000001400 - 0x000000140f] io
> PCI: 00:02.0 10 <- [0x00fc000000 - 0x00fdffffff] prefmem
> PCI: 00:02.0 14 <- [0x00fe000000 - 0x00fe000fff] mem
> PCI: 00:03.0 10 <- [0x0000001000 - 0x00000010ff] io
> Done setting resources.
> Done allocating resources.
> Enabling resources...
> PCI: 00:00.0 subsystem <- 00/00
> PCI: 00:00.0 cmd <- 140
> PCI: 00:01.0 subsystem <- 00/00
> PCI: 00:01.0 cmd <- 147
> PCI: 00:01.1 cmd <- 141
> PCI: 00:01.3 cmd <- 140
> PCI: 00:02.0 cmd <- 143
> PCI: 00:03.0 cmd <- 141
> done.
> Initializing devices...
> Root Device init
> PCI: 00:00.0 init
> PCI: 00:01.0 init
> PCI: 00:01.1 init
> PCI: 00:01.3 init
> PCI: 00:02.0 init
> PCI: 00:03.0 init
> Devices initialized
> Moving GDT to 0x500...ok
> Wrote linuxbios table at: 00000530 - 00000b74  checksum 841b
> 
> Welcome to elfboot, the open sourced starter.
> January 2002, Eric Biederman.
> Version 1.3
> 
> rom_stream: 0xfffe0000 - 0xfffeffff
> Found ELF candiate at offset 0
> New segment addr 0x100000 size 0x236e0 offset 0xc0 filesize 0x9748
> (cleaned up) New segment addr 0x100000 size 0x236e0 offset 0xc0 filesize 0x9748
> New segment addr 0x1236e0 size 0x48 offset 0x9820 filesize 0x48
> (cleaned up) New segment addr 0x1236e0 size 0x48 offset 0x9820 filesize 0x48
> Dropping non PT_LOAD segment
> Dropping non PT_LOAD segment
> Loading Segment: addr: 0x0000000000100000 memsz: 0x00000000000236e0
> filesz: 0x0000000000009748
> Clearing Segment: addr: 0x0000000000109748 memsz: 0x0000000000019f98
> Loading Segment: addr: 0x00000000001236e0 memsz: 0x0000000000000048
> filesz: 0x0000000000000048
> Jumping to boot code at 0x106924
> FILO version 0.5 (eswierk at bianchi.arastra.com) Mon Sep  4 11:00:39 PDT 2006
> collect_sys_info: boot eax = 0xe1fb007
> collect_sys_info: boot ebx = 0x3ff77a0
> collect_sys_info: boot arg = 0x3ff77a0
> malloc_diag: alloc: 0 bytes (0 blocks), free: 16376 bytes (1 blocks)
> malloc_diag: alloc: 24 bytes (1 blocks), free: 16352 bytes (1 blocks)
> collect_elfboot_info: Bootloader: elfboot
> collect_elfboot_info: Version: 1.3
> malloc_diag: alloc: 40 bytes (2 blocks), free: 16336 bytes (1 blocks)
> collect_linuxbios_info: Searching for LinuxBIOS tables...
> find_lb_table: Found canidate at: 00000530
> find_lb_table: header checksum o.k.
> find_lb_table: table checksum o.k.
> find_lb_table: record count o.k.
> collect_linuxbios_info: Found LinuxBIOS table at: 00000530
> malloc_diag: alloc: 128 bytes (3 blocks), free: 16248 bytes (1 blocks)
> convert_memmap: 0x00000000000000 0x00000000000bdc 16
> convert_memmap: 0x00000000000bdc 0x0000000009f424 1
> convert_memmap: 0x000000000c0000 0x00000000030000 1
> convert_memmap: 0x000000000f0000 0x00000003f10000 1
> convert_memmap: 0x000000000f0000 0x00000000000000 16
> collect_sys_info: 0000000000000bdc-00000000000a0000
> collect_sys_info: 00000000000c0000-00000000000f0000
> collect_sys_info: 00000000000f0000-0000000004000000
> collect_sys_info: RAM 64 MB
> relocate: Current location: 0x100000-0x123727
> relocate: Relocating to 0x3fdc8d0-0x3fffff7... ok
> setup_timers: CPU 797 MHz
> pci_init: Scanning PCI: found 6 devices
> malloc_diag: alloc: 208 bytes (4 blocks), free: 16168 bytes (1 blocks)
> pci_init: 00:00.0 8086:1237 0600 00
> pci_init: 00:01.0 8086:7000 0601 00
> pci_init: 00:01.1 8086:7010 0101 80
> pci_init: 00:01.3 8086:7113 0680 00
> pci_init: 00:02.0 1013:00b8 0300 00
> pci_init: 00:03.0 10ec:8029 0200 00
> Press <Enter> for default boot, or <Esc> for boot prompt... timed out
> boot: hda1:/vmlinuz root=/dev/hda1 console=tty0 console=ttyS0,115200
> malloc_diag: alloc: 280 bytes (5 blocks), free: 16096 bytes (1 blocks)
> malloc_diag: alloc: 296 bytes (6 blocks), free: 16080 bytes (1 blocks)
> file_open: dev=hda1, path=/vmlinuz
> find_ide_controller: found PCI IDE controller 8086:7010 prog_if=0x80
> find_ide_controller: primary channel: compatibility mode
> find_ide_controller: cmd_base=0x1f0 ctrl_base=0x3f4
> ide_software_reset: Waiting for ide0 to become ready for reset... ok
> init_drive: Testing for hda
> init_drive: Probing for hda
> init_drive: LBA mode, sectors=16384
> init_drive: LBA48 mode, sectors=16384
> init_drive: Init device params... ok
> hda: LBA48 8192KB: QEMU HARDDISK
> devopen: Partition 1 start 3020518592 length 506638
> Disk read error dev=1 drive=0 sector=3020518592
> devread: read sector failed
> Disk read error dev=1 drive=0 sector=3020518594
> devread: read sector failed
> Disk read error dev=1 drive=0 sector=3020518720
> devread: read sector failed
> Disk read error dev=1 drive=0 sector=3020518608
> devread: read sector failed
> Disk read error dev=1 drive=0 sector=3020518656
> devread: read sector failed
> Unknown filesystem type
> malloc_diag: alloc: 280 bytes (5 blocks), free: 16096 bytes (1 blocks)
> malloc_diag: alloc: 208 bytes (4 blocks), free: 16168 bytes (1 blocks)
> boot: hda:/vmlinuz console=ttyS0
> malloc_diag: alloc: 248 bytes (5 blocks), free: 16128 bytes (1 blocks)
> malloc_diag: alloc: 264 bytes (6 blocks), free: 16112 bytes (1 blocks)
> file_open: dev=hda, path=/vmlinuz
> Mounted fat
> malloc_diag: alloc: 248 bytes (5 blocks), free: 16128 bytes (1 blocks)
> elf_load: Not a bootable ELF image
> malloc_diag: alloc: 264 bytes (6 blocks), free: 16112 bytes (1 blocks)
> file_open: dev=hda, path=/vmlinuz
> devopen: already open
> malloc_diag: alloc: 248 bytes (5 blocks), free: 16128 bytes (1 blocks)
> Found Linux version 2.6.15-1.2054_FC5
> (bhcompile at hs20-bc1-2.build.redhat.com) #1 Tue Mar 14 15:48:03 EST
> 2006 (protocol 0x204) (loadflags 0x1) bzImage.
> init_linux_params: Setting up paramters at 0x90000
> set_memory_size: 0000000000000bdc - 00000000000a0000
> set_memory_size: 00000000000c0000 - 00000000000f0000
> set_memory_size: 00000000000f0000 - 0000000004000000
> set_memory_size: ramtop=0x4000000
> set_memory_size: ext_mem_k=64512, alt_mem_k=64512
> parse_command_line: original command line: "console=ttyS0"
> parse_command_line: kernel command line at 0x91000
> parse_command_line: kernel command line (13 bytes): "console=ttyS0"
> load_linux_kernel: offset=0x2000 addr=0x100000 size=0x16d7f5
> Loading kernel... ok
> start_linux: eip=0x100000
> Jumping to entry point...
> -----
> 
> At this point, even qemu becomes unresponsive, so it's hard to figure
> out exactly what it's doing while running in a tight loop. The last
> entry in the qemu debug log file is the "Load new stack segment with
> new GDT" movl instruction in __switch_context:
> 
> -----
> 0x03fe3213:  pop    %ebx
> 0x03fe3214:  sub    $0x106943,%ebx
> 0x03fe321a:  cli
> 0x03fe321b:  mov    %esp,%esi
> 0x03fe321d:  sub    %ebx,%esi
> 0x03fe321f:  xchg   %esi,0x109700(%ebx)
> 0x03fe3225:  add    %ebx,%esi
> 0x03fe3227:  movzwl (%esi),%edx
> 0x03fe322a:  mov    0x14(%esi),%eax
> 0x03fe322d:  lgdtl  0x2(%esi)
> 0x03fe3231:  mov    %edx,%ss
> -----
> 
> I've also tried an older qemu (0.7.2), an older LinuxBIOS (svn 2302)
> and an older kernel (2.4.something from Fedora Core 1), all with the
> same result.
> 
> Any suggestions would be appreciated.
> 
> --Ed
>