Bug 27993 – aic7xxx module crashes on boot

Bug 27993 - aic7xxx module crashes on boot

Summary:	aic7xxx module crashes on boot

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	kernel (Show other bugs)
Sub Component:
Version:	7.1
Hardware:	i686 Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Doug Ledford
QA Contact:	Brock Organ
Docs Contact:

URL:
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Depends On:
Blocks:
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Reported:	2001-02-16 12:53 EST by Habig, Alec
Modified:	2007-04-18 12:31 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2001-02-21 14:33:54 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
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Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Habig, Alec 2001-02-16 12:53:14 EST

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.0-0.99.23smp i686; en-US; 0.8)
Gecko/20010214


Using the kernel-smp-2.4.0-0.99.23 package (i686), the aic7xxx.o module
crashes insmod on boot (as it loads the module from the ramdisk). Lots of
register dump foo I will cut-n-paste by paper and pencil if you want it -
it starts off with

  "NMI Watchdog detected LOCKUP on CPU1, registers:"

Note that my scsi controller is an AIC-7899 U160M, which seems to feature
prominantly in the bug list.


Using the aix7xxx_old module instead works.  Booting with
kernel-smp-2.2.17-14, the stock aix7xxx works.


Reproducible: Always
Steps to Reproduce:
1. Try to boot using kernel-smp-2.4.0-0.99.23
2.
3.
	

Actual Results:  insmod locks up a CPU as it loads the aic7xxx module from
the ramdisk.  Boot stops, system hangs.


Expected Results:  It should have loaded the scsi driver, mounted the
system disk, and booted.

Comment 1 Doug Ledford 2001-02-21 18:51:15 EST

This is actually a bug in the NMI lockup detection code.  The latest kernel
builds should have this solved already.  Please verify that this is still a
problem with the latest kernel, and if so re-open this report (note, it only
effects aic7xxx_new and not aic7xxx now because it only happens with drivers
that use the new SCSI error handling code and the original aic7xxx driver uses
the old code).

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