strange PCI resource behaviour in 2.4
Daniel Jacobowitz
drow at false.org
Thu Aug 24 14:21:18 EST 2000
On Thu, Aug 24, 2000 at 02:03:19AM +0100, David Monro wrote:
>
> Hi,
>
> I'm seeing a strange problem with the PCI code on 2.4. What is happening
> is that the PCI code seems to be detecting a memory region on my pcnet32
> chip, but leaving it at 0x0:
>
> prozac:~# lspci -v -vv -s 0c
> 00:0c.0 Ethernet controller: Advanced Micro Devices [AMD] 79c970 [PCnet
> LANCE] (rev 16)
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B-
> Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
> <TAbort- <MAbort- >SERR- <PERR-
> Interrupt: pin A routed to IRQ 15
> Region 0: I/O ports at 1000200 [disabled] [size=32]
> Region 1: Memory at <unassigned> (32-bit, non-prefetchable) [disabled]
> [size=32]
> Expansion ROM at <unassigned> [disabled] [size=64K]
>
> (On a 2.2 kernel, Region 1 and the Expansion ROM simply aren't there,
> presumably bacuse the firmware doesn't enable them.)
How recent a 2.4? There was a bug very like this in 2.4.0test6
affecting all architectures as far as i know. It was resolved in the
latest 2.4.0-test7 prepatch.
Dan
/--------------------------------\ /--------------------------------\
| Daniel Jacobowitz |__| SCS Class of 2002 |
| Debian GNU/Linux Developer __ Carnegie Mellon University |
| dan at debian.org | | dmj+ at andrew.cmu.edu |
\--------------------------------/ \--------------------------------/
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