Bug 59165 - DS20 with more than 2GB of memory crashes during install
Summary: DS20 with more than 2GB of memory crashes during install
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.3
Hardware: alpha
OS: Linux
high
high
Target Milestone: ---
Assignee: Diego Novillo
QA Contact: Beth Uptagrafft
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2002-02-01 03:32 UTC by harry.heinisch
Modified: 2005-10-31 22:00 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2002-02-11 20:17:37 UTC
Embargoed:

Attachments (Terms of Use)
patch for arch/alpha/kernel/pci.c to fix quirk_cypress() bug (601 bytes, patch)
2002-02-01 03:34 UTC, harry.heinisch 		no flags Details | Diff
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Description harry.heinisch 2002-02-01 03:32:59 UTC 
Description of Problem:

On a DS20E with more than 2GB of memory and SCSI controller on PCI bus #0,
the install crashes.


Version-Release number of selected component (if applicable): alpha-7.2-beta1


How Reproducible:

Always, but not exactly the same symptoms.


Steps to Reproduce:
1. DS20 or DS20E with more than 2GB of memory
2. SCSI controller (doesn't matter what kind) on PCI bus #0
3. full ("Everything") install

Actual Results:

During the install, the kernel will crash with various symptoms, sometimes
a panic, sometimes just a complete hung machine.


Expected Results:

Flawless install, of course... :-)


Additional Information:

The bug is caused by a flawed workaround for a CYPRESS chipset limitation.
The workaround attempts to adjust a resource if it finds more than 2GB of
memory, and incorrectly calculates the adjustment.

I will attach a bugfix for this problem. (JAE)
Comment 1 harry.heinisch 2002-02-01 03:34:40 UTC 
Created attachment 44217 [details]
patch for arch/alpha/kernel/pci.c to fix quirk_cypress() bug
Comment 2 Beth Uptagrafft 2002-02-01 20:20:44 UTC 
Does this happen on a DS20E with exactly 2GB memory?  That's what our system 
has.
Comment 3 Jeff Wiedemeier 2002-02-03 02:20:45 UTC 
With a 2.4.9 kernel, this will not happen with exactly 2GB of memory - more 
than 2GB is required to encounter this bug (DS20 / DS20E support up to 4GB of 
memory).
Comment 4 Diego Novillo 2002-02-06 20:17:07 UTC 
The patch has been added to the kernel for the upcoming release.
Comment 5 Beth Uptagrafft 2002-03-13 14:50:05 UTC 
I'm closing this bug because it was fixed in the Feb 22 release.
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