Bug 50755

Summary: Unable to see pci devices
Product: [Retired] Red Hat Linux Reporter: Arthur Tan <art03>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED CURRENTRELEASE QA Contact: Brock Organ <borgan>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.1   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2003-06-06 16:27:06 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Arthur Tan 2001-08-02 20:59:48 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)

Description of problem:
Upgrade from 2.4.2-2 kernel to 2.4.3-12 kernel. Running on a IBM netfinity 
7000 quad processor host with 1024 MB of memory. I have 2 Qlogic 2200 and 
an Intel ethernet pro100 nic card in the pci slots. After upgrading 
successfully rebooting the host modules for those cards would not load, 
saying that there are no devices available. I have an adaptec scsi host 
adapter and that loads fine with the aic7xxx module. 

How reproducible:
Always

Steps to Reproduce:
1.Load kernel 2.4.3-12
2.Create new ramdisk and edit lilo.conf to load new kernel
3.Reboot the host
	

Actual Results:  All pci devices are no longer accessible.

Expected Results:  They should still be accessible.

Additional info:

Output from lspci:

00:00.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
00:00.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:00.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:00.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 02)
00:01.0 PCI bridge: IBM IBM27-82351 (rev 07)
00:0a.0 VGA compatible controller: S3 Inc. Trio 64V2/DX or /GX (rev 16)
00:10.0 Host bridge: Intel Corporation 450NX - 82451NX Memory & I/O 
Controller (rev 03)
00:12.0 Host bridge: Intel Corporation 450NX - 82454NX/84460GX PCI 
Expander Bridge (rev 02)
00:13.0 Host bridge: Intel Corporation 450NX - 82454NX/84460GX PCI 
Expander Bridge (rev 02)
00:14.0 Host bridge: Intel Corporation 450NX - 82454NX/84460GX PCI 
Expander Bridge (rev 02)
01:02.0 Bridge: IBM: Unknown device 00dc (rev 02)
01:04.0 SCSI storage controller: Adaptec AHA-2940U/UW / AHA-39xx / AIC-
7895 (rev 04)
01:04.1 SCSI storage controller: Adaptec AHA-2940U/UW / AHA-39xx / AIC-
7895 (rev 04)
Comment 1 Arjan van de Ven 2001-08-02 21:07:04 UTC 
I assume you reran lilo (no kidding, some people forget that)
Comment 2 Arthur Tan 2001-08-03 16:01:15 UTC 
yup ! I created a new ramdisk and ran lilo after making all the necessary 
changes in lilo.conf.
Comment 3 Arjan van de Ven 2001-08-03 16:22:28 UTC 
Ok I've to admit this puzzles me. I don't think the PCI code changed
THAT much between 2.4.2-2 and 2.4.3-12....
Comment 4 Arthur Tan 2001-08-03 18:30:44 UTC 
I have other smp host that was upgraded to the 2.4.3-12smp kernel with the same 
set of pci devices and they are running fine. The host are Dell PowerEdge 2400.
Comment 5 Michael K. Johnson 2001-08-23 17:06:51 UTC 
Also see Bug #50856
Comment 6 Michael K. Johnson 2001-08-23 18:20:12 UTC 
We believe this will be fixed in the next rawhide kernel, 2.4.7-2.8 or
later.  If so, the bug was caused by a fix for another machine with the
450NX chipset...