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SubjectStatus Update for Linux 2.4 Status/TODO


Ted,

..
..
4. Boot Time Failures
..
Boot hangs on a range of Dell docking stations (Latitude)
Almost certainly related: PCI code doesn't see devices behind
DECchip 21150 PCI bridges
(used in Dell Latitude). Reported by Simon Trimmer . (Patch from
Martin Mares exists but
it disables cardbus devices, according to Tigran.)
Derek Fawcus at Cisco reports similar problems with Toshiba Tecra
8000 attached to the
DeskStation V+ docking station. (once again, caused by bridge
returning 0 when reading
the I/O base/limit and Memory base/limit registers which confuses
the new PCI resource
code).
==================

I am the one who reported the "Boot hangs on a range of Dell docking
stations (Latitude)".

test9 has fixed this problem. Thanks to whoever saved me the time to
poke into this.
I do have a feeling this fixes other reported problems above; maybe people
can test.

This seems more related to second order PCI busses rather than
DECchip 21150 PCI bridges.

some details for my case:

------------------------------
00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge
(rev 03)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge
(rev 03)
## 00.01:0 is a bridge from 00 to 01-01
00:03.0 CardBus bridge: Texas Instruments PCI1225 (rev 01)
## 00.03:0 is a bridge from 00 to 03-06
00:03.1 CardBus bridge: Texas Instruments PCI1225 (rev 01)
## 00.03:1 is a bridge from 00 to 07-0a
00:07.0 Bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
00:07.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:07.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:07.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 03)
00:11.0 PCI bridge: Intel Corporation 82380FB (rev 01)
## 00.11:0 is a bridge from 00 to 02-02
01:00.0 VGA compatible controller: Neomagic Corporation NM2360 [MagicMedia
256ZX]
01:00.1 Multimedia audio controller: Neomagic Corporation NM2360
[MagicMedia 256ZX Audio]
02:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2164W
[Millennium II]
02:05.0 IDE interface: CMD Technology Inc PCI0646 (rev 03)
02:07.0 SCSI storage controller: Adaptec AIC-7860 (rev 03)
02:08.0 Ethernet controller: 3Com Corporation 3c905 100BaseTX [Boomerang]

----------------------------------------

Having said all that, another problem still needs to be resolved,
but i think that deserves another posting. Summary is: test9 boots fine.

cheers,
jamal

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