Problem confirmed with
2.1.75
INTEL 120Mhz (at 133 ;-) '"Never" had problems before'
PCI-NE2000 clone (PCI-NET/32 Combo card)
Funny things:
1: Strange IRQ/IO address (io at 0x823452678a IRQ 27)
2: reboot (== sync; sync; reboot) to 2.0.33 shows the same!
Must power-cycle to restore the 'correct' values/detection
(?)
(Thanks for 2.0.33!! Works super!!)
I would like a 2.1.[7+]? kernel (ix25-isdn stuff!!) though.
Bob.
Hans Grobler wrote:
>
> Hi all,
>
> As a "Christmas present", I got a few (5) 21164LX 533MHz machines. After
> getting RedHat 5.0 installed, I started experimenting with the 2.1.x
> kernels (in order to get DU 4.0B binary support).
>
> 2.1.75 compiled fine (except for the millions of "__r16 uninitialized"
> warnings). After bootup with the new kernel, I discovered that the
> networking was not functional (could not ping anything but machine's own
> ip). On closer inspection I noticed that the IRQ detected for the network
> card was not the same as that detected under the 2.0.x kernels. The
> networking in the 2.0.x kernels functions correctly.
>
> Next I downloaded the 2.1.76 kernel & compiled/installed. About 30 seconds
> after bootup had completed, the system spontaneously rebooted. These
> reboots are reproducable. In order to isolate the problem, I build a
> kernel without the network driver and stress tested that. No further
> reboots or funnies.
>
> Has anyone else encounter similar PCI probe failures with 2.1.x kernels?
> Can any kernel guru give me a hint on where to start the hunt to fix this
> problem? My guess would be arch/alpha/kernel/bios32.c? The comments
> however mention bios emulation code. How do I know if my system is using
> emulation code or not?
>
> Here are relevant /proc/pci extracts:
>
> For 2.0.33:
> Bus 1, device 2, function 0:
> Ethernet controller: DEC DC21140 (rev 34).
> Medium devsel. Fast back-to-back capable. IRQ 30. Master Capable.
> Latency=32. Min Gnt=20.Max Lat=40.
> I/O at 0xb000.
> Non-prefetchable 32 bit memory at 0xb000000.
>
> For 2.1.76:
> Bus 1, device 2, function 0:
> Ethernet controller: DEC DC21140 (rev 34).
> Medium devsel. Fast back-to-back capable. IRQ 28. Master Capable.
> Latency=32. Min Gnt=20.Max Lat=40.
> I/O at 0xd000 [0xb001].
> Non-prefetchable 32 bit memory at 0x3000000 [0xb000000].
>
> Thanks & regards.
> --
> Hans Grobler <grobh@sun.ac.za>
> Department Electrical & Electronic Engineering
> University of Stellenbosch, South Africa
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