Bochs Help

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masterme120
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Joined: Mon Jun 22, 2009 10:45 pm

Bochs Help

Post by masterme120 »

Hello, I'm new to OS Development, but I have a simple kernel written in c along with a linker file, a loader in assembler, and a makefile. I've got it put into a file called floppy.img and it is referenced correctly in the configuration file, but when I try to start bochs, it gives this error message:

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00000000000i[APIC0] local apic 0 initializing
========================================================================
                     Bochs x86 Emulator 2.3.7.cvs
             Build from CVS snapshot, after release 2.3.7
========================================================================
00000000000i[     ] LTDL_LIBRARY_PATH not set. using compile time default '/usr/lib/bochs/plugins'
00000000000i[     ] BXSHARE not set. using compile time default '/usr/share/bochs'
00000000000i[     ] reading configuration from bochsrc.txt
00000000000i[     ] lt_dlhandle is (nil)
00000000000p[     ] >>PANIC<< dlopen failed for module 'x': file not found
========================================================================
Event type: PANIC
Device: [     ]
Message: dlopen failed for module 'x': file not found

A PANIC has occurred.  Do you want to:
  cont       - continue execution
  alwayscont - continue execution, and don't ask again.
               This affects only PANIC events from device [     ]
  die        - stop execution now
  abort      - dump core 
  debug      - hand control to gdb
Choose one of the actions above: [die]
And if I type cont, then it displays this:

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00000000000i[     ] Bochs x86 Emulator 2.3.7.cvs
00000000000i[     ]   Build from CVS snapshot, after release 2.3.7
00000000000i[     ] System configuration
00000000000i[     ]   processors: 1 (cores=1, HT threads=1)
00000000000i[     ]   A20 line support: yes
00000000000i[     ] CPU configuration
00000000000i[     ]   level: 6
00000000000i[     ]   SMP support: no
00000000000i[     ]   APIC support: yes
00000000000i[     ]   FPU support: yes
00000000000i[     ]   MMX support: yes
00000000000i[     ]   SSE support: 4E
00000000000i[     ]   CLFLUSH support: yes
00000000000i[     ]   VME support: yes
00000000000i[     ]   3dnow! support: yes
00000000000i[     ]   PAE support: yes
00000000000i[     ]   PGE support: yes
00000000000i[     ]   PSE support: yes
00000000000i[     ]   1G paging support: no
00000000000i[     ]   x86-64 support: yes
00000000000i[     ]   SEP support: yes
00000000000i[     ]   MWAIT support: no
00000000000i[     ]   XSAVE support: yes
00000000000i[     ]   AES support: no
00000000000i[     ]   VMX support: no
00000000000i[     ] Optimization configuration
00000000000i[     ]   RepeatSpeedups support: yes
00000000000i[     ]   Trace cache support: yes
00000000000i[     ]   Fast function calls: yes
00000000000i[     ] Devices configuration
00000000000i[     ]   ACPI support: yes
00000000000i[     ]   NE2000 support: yes
00000000000i[     ]   PCI support: yes
00000000000i[     ]   SB16 support: yes
00000000000i[     ]   USB support: yes
00000000000i[     ]   VGA extension support: vbe 
00000000000i[MEM0 ] allocated memory at 0xb59a0008. after alignment, vector=0xb59a1000
00000000000i[MEM0 ] 32.00MB
00000000000i[MEM0 ] rom at 0xfffe0000/131072 ('/usr/share/bochs/BIOS-bochs-latest')
00000000000i[MEM0 ] rom at 0xc0000/40448 ('/usr/share/bochs/VGABIOS-lgpl-latest')
00000000000i[     ] lt_dlhandle is 0x9d45d00
00000000000i[PLGIN] loaded plugin libbx_cmos.la
00000000000i[     ] lt_dlhandle is 0x9d46970
00000000000i[PLGIN] loaded plugin libbx_dma.la
00000000000i[     ] lt_dlhandle is 0x9d46b58
00000000000i[PLGIN] loaded plugin libbx_pic.la
00000000000i[     ] lt_dlhandle is 0x9d476a8
00000000000i[PLGIN] loaded plugin libbx_pit.la
00000000000i[     ] lt_dlhandle is 0x9d476d8
00000000000i[PLGIN] loaded plugin libbx_vga.la
00000000000i[     ] lt_dlhandle is 0x9d48138
00000000000i[PLGIN] loaded plugin libbx_floppy.la
00000000000i[     ] lt_dlhandle is 0x9d48910
00000000000i[PLGIN] loaded plugin libbx_pci.la
00000000000i[     ] lt_dlhandle is 0x9d490c0
00000000000i[PLGIN] loaded plugin libbx_pci2isa.la
00000000000i[     ] lt_dlhandle is 0x9d48988
00000000000i[PLGIN] loaded plugin libbx_unmapped.la
00000000000i[     ] lt_dlhandle is 0x9d49898
00000000000i[PLGIN] loaded plugin libbx_biosdev.la
00000000000i[     ] lt_dlhandle is 0x9d49c00
00000000000i[PLGIN] loaded plugin libbx_speaker.la
00000000000i[     ] lt_dlhandle is 0x9d4a2f8
00000000000i[PLGIN] loaded plugin libbx_extfpuirq.la
00000000000i[     ] lt_dlhandle is 0x9d4a948
00000000000i[PLGIN] loaded plugin libbx_gameport.la
00000000000i[     ] lt_dlhandle is 0x9d4b170
00000000000i[PLGIN] loaded plugin libbx_pci_ide.la
00000000000i[     ] lt_dlhandle is 0x9d4b6d0
00000000000i[PLGIN] loaded plugin libbx_acpi.la
00000000000i[     ] lt_dlhandle is 0x9d4b378
00000000000i[PLGIN] loaded plugin libbx_ioapic.la
00000000000i[     ] lt_dlhandle is 0x9d4be88
00000000000i[PLGIN] loaded plugin libbx_keyboard.la
00000000000i[     ] lt_dlhandle is 0x9d4c928
00000000000i[PLGIN] loaded plugin libbx_harddrv.la
00000000000i[     ] lt_dlhandle is 0x9d4cc08
00000000000i[PLGIN] loaded plugin libbx_serial.la
00000000000i[     ] lt_dlhandle is 0x9d5f248
00000000000i[PLGIN] loaded plugin libbx_parallel.la
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Tue Jun 23 00:57:00 2009 (time0=1245733020)
00000000000i[DMA  ] channel 4 used by cascade
00000000000i[DMA  ] channel 2 used by Floppy Drive
Segmentation fault (core dumped)
Does anyone know what this means? I could attach any files that you would like to see, if that would help.
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VolTeK
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Re: Bochs Help

Post by VolTeK »

"its going!, its going!, and.....dump :| , well thats all you had to see folks step back now step back"
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kop99
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Re: Bochs Help

Post by kop99 »

masterme120, maybe you could post your code.
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NickJohnson
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Re: Bochs Help

Post by NickJohnson »

It's trying to load some dynamic library but can't find it, so it's some sort of installation (or possibly corruption) problem. How did you install Bochs (and what system are you using)?

Edit: Also, could you post your bochsrc file? You may be asking it to use a feature that it did not have compiled in.
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pcmattman
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Re: Bochs Help

Post by pcmattman »

It's looking for the X module, so it can actually display the Bochs GUI.

If you're on Ubuntu, it's as simple as a "sudo apt-get install bochs-x". If not, would you mind telling us your operating system so we can give you more targeted information? And did you compile Bochs from source?
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Combuster
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Re: Bochs Help

Post by Combuster »

http://forum.osdev.org/search.php?keywo ... mit=Search <- Try that first next time.
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finarfin
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Re: Bochs Help

Post by finarfin »

Probably you have wx library installed, try to edit your .bochsrc file and comment the line (with a #):

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 config_interface: textconfig
if is enabled, and uncomment:

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config_interface: wx
and use

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display_library: wx
instead of (comment it):

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display_library: x
Probably this work :D
(for me work :D i hope also for you) :D
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Troy Martin
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Re: Bochs Help

Post by Troy Martin »

sudo apt-get install bochs-x

That's what I did when bochs borked out on me when I first compiled it. Works fine now.

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masterme120
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Joined: Mon Jun 22, 2009 10:45 pm

Re: Bochs Help

Post by masterme120 »

I tried bochs-x, and that worked for me. Thanks for all of the help and suggestions. BTW, I'm on Ubuntu 9.10 Karmic Koala with an i386 architecture.
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tkahn6
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Re: Bochs Help

Post by tkahn6 »

masterme120 wrote:I tried bochs-x, and that worked for me. Thanks for all of the help and suggestions. BTW, I'm on Ubuntu 9.10 Karmic Koala with an i386 architecture.
9.10? How is it? I'm running Jaunty
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