crash in vesafb?

Arvind Sankar (arvinds@mit.edu)
Sat, 23 Jan 1999 01:09:06 -0500

I installed 2.2.0pre9 with vesa framebuffer support enabled. If I boot with the
ypan/ywrap options, the machine crashes after some time. Actually, most of the
time it doesn't actually crash, it switches my monitor off, and the only way I
know to bring it back is reboot. A couple of times it actually froze solid. I
have an ATI Mach64 card (Xpert98). I haven't tried the Mach64 fb too much,
because it doesn't display properly (some pixels disappear etc). I have no
trouble if I use the vesa:redraw option instead. This generally happens after
some time, and often if I am scrolling screen-by-screen using less (say a man
page). Couple of times it also happened while in vi. There were no error
messages or OOPS, so can't help there.

/var/log/messages:

Jan 22 23:33:35 anjala kernel: vesafb: framebuffer at 0xe4000000, mapped to 0xc4800000, size 8192k
Jan 22 23:33:35 anjala kernel: vesafb: mode is 1024x768x8, linelength=1024, pages=9
Jan 22 23:33:35 anjala kernel: vesafb: protected mode interface info at c000:4785
Jan 22 23:33:35 anjala kernel: vesafb: pmi: set display start = c00c4829, set palette = c00c48a1
Jan 22 23:33:35 anjala kernel: vesafb: pmi: ports = e085 e01f e0b4 e0b8 e018 e014 e0c0 e0c3 e0c1
Jan 22 23:33:35 anjala kernel: vesafb: scrolling: ypan using protected mode interface, yres_virtual=8192
Jan 22 23:33:35 anjala kernel: Console: switching to colour frame buffer device 128x48
Jan 22 23:33:35 anjala kernel: fb0: VESA VGA frame buffer device
Jan 22 23:33:35 anjala kernel: atyfb: 3D RAGE PRO (BGA, AGP) [0x4742 rev 0x7c] 8M SDRAM, 230 MHz PLL, 100 Mhz MCLK
Jan 22 23:33:35 anjala kernel: fb1: ATY Mach64 frame buffer device on PCI

I have the Mach64 driver still compiled in, though I don't use it.

/proc/pci:
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 440BX - 82443BX Host (rev 2).
Medium devsel. Master Capable. Latency=64.
Prefetchable 32 bit memory at 0xe0000000 [0xe0000008].
Bus 0, device 1, function 0:
PCI bridge: Intel 440BX - 82443BX AGP (rev 2).
Medium devsel. Master Capable. Latency=64. Min Gnt=136.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371AB PIIX4 ISA (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: Intel 82371AB PIIX4 IDE (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=64.
I/O at 0xf000 [0xf001].
Bus 0, device 7, function 2:
USB Controller: Intel 82371AB PIIX4 USB (rev 1).
Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable. Latency=64.
I/O at 0x6400 [0x6401].
Bus 0, device 7, function 3:
Bridge: Intel 82371AB PIIX4 ACPI (rev 2).
Medium devsel. Fast back-to-back capable.
Bus 0, device 10, function 0:
Ethernet controller: 3Com 3C905B 100bTX (rev 48).
Medium devsel. IRQ 10. Master Capable. Latency=64. Min Gnt=10.Max Lat=10.
I/O at 0x6800 [0x6801].
Non-prefetchable 32 bit memory at 0xe9000000 [0xe9000000].
Bus 0, device 13, function 0:
Multimedia audio controller: Ensoniq Unknown device (rev 2).
Vendor id=1274. Device id=1371.
Slow devsel. IRQ 11. Master Capable. Latency=64. Min Gnt=12.Max Lat=128.
I/O at 0x6c00 [0x6c01].
Bus 1, device 0, function 0:
VGA compatible controller: ATI Mach64 GB (rev 92).
Medium devsel. Fast back-to-back capable. IRQ 15. Master Capable. Latency=64. Min Gnt=8.
Non-prefetchable 32 bit memory at 0xe4000000 [0xe4000000].
I/O at 0xe000 [0xe001].
Non-prefetchable 32 bit memory at 0xe6000000 [0xe6000000].

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