Bug 59165 - DS20 with more than 2GB of memory crashes during install
DS20 with more than 2GB of memory crashes during install
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
alpha Linux
high Severity high
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Assigned To: Diego Novillo
Beth Uptagrafft
Depends On:
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Reported: 2002-01-31 22:32 EST by harry.heinisch
Modified: 2005-10-31 17:00 EST (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2002-02-11 15:17:37 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
patch for arch/alpha/kernel/pci.c to fix quirk_cypress() bug (601 bytes, patch)
2002-01-31 22:34 EST, harry.heinisch
no flags Details | Diff

  None (edit)
Description harry.heinisch 2002-01-31 22:32:59 EST
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 2002-01-31 22:34:40 EST
Created attachment 44217 [details]
patch for arch/alpha/kernel/pci.c to fix quirk_cypress() bug
Comment 2 Beth Uptagrafft 2002-02-01 15:20:44 EST
Does this happen on a DS20E with exactly 2GB memory?  That's what our system 
Comment 3 Jeff Wiedemeier 2002-02-02 21:20:45 EST
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 
Comment 4 Diego Novillo 2002-02-06 15:17:07 EST
The patch has been added to the kernel for the upcoming release.
Comment 5 Beth Uptagrafft 2002-03-13 09:50:05 EST
I'm closing this bug because it was fixed in the Feb 22 release.

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