Bug 27993 - aic7xxx module crashes on boot
Summary: aic7xxx module crashes on boot
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel   
(Show other bugs)
Version: 7.1
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Doug Ledford
QA Contact: Brock Organ
Depends On:
TreeView+ depends on / blocked
Reported: 2001-02-16 17:53 UTC by Habig, Alec
Modified: 2007-04-18 16:31 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2001-02-21 19:33:54 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Habig, Alec 2001-02-16 17:53:14 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.0-0.99.23smp i686; en-US; 0.8)

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

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 23:51:15 UTC
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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