Bug 27993

Summary: aic7xxx module crashes on boot
Product: [Retired] Red Hat Linux Reporter: Habig, Alec <ahabig>
Component: kernelAssignee: Doug Ledford <dledford>
Status: CLOSED RAWHIDE QA Contact: Brock Organ <borgan>
Severity: high Docs Contact:
Priority: medium    
Version: 7.1CC: dledford
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2001-02-21 19:33:54 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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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)
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 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).