Bug 115351

Summary: aic79xx.o crashes in Ultra320 mode.
Product: [Fedora] Fedora Reporter: Sam Varshavchik <mrsam>
Component: kernelAssignee: Dave Jones <davej>
Status: CLOSED WONTFIX QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: rawhideCC: jkeating, pfrields
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Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2004-11-29 09:37:53 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
System boot crash in aic79xx.o
none
Forcing the 29320 down to 160MB/s succesfully boots the system. none

Description Sam Varshavchik 2004-02-11 02:57:01 UTC 
Description of problem:

Adaptec 29320 in a dual Opteron box, with a pair of 36GB Ultra320
Seagate Cheetahs.

aic79xx.o consistently crashes at system boot time if I allow it to
autonegotiate 320MB/s.

Forcing the aic79xx.o to downshift to 160MB/s, via the card's BIOS (by
disabling packetization and QAS) allows the card to operate normally.

Kernel 2.4.22-1.2166

Both SMP and UP kernels crash.

Boot logs follow.
Comment 1 Sam Varshavchik 2004-02-11 02:58:20 UTC 
Created attachment 97577 [details]
System boot crash in aic79xx.o

This is the default setting of the 29320 adapter, which autonegotiates 320MB/s.
Comment 2 Sam Varshavchik 2004-02-11 02:59:27 UTC 
Created attachment 97578 [details]
Forcing the 29320 down to 160MB/s succesfully boots the system.

If I go into the 29320's BIOS setup, and manually turn off packetization and
QAS settings for both SCSI disk drives, the card ramps down to 160MB/s, and the
system boots normally.
Comment 3 Jesse Keating 2004-03-08 23:22:12 UTC 
I am not able to duplicate this on a Athlon64 system using the 29320.
 Asus K8V Delux mainboard.  Adaptec card negotiates to full 320 speed.
 Will continue to test on other amd64 platforms.
Comment 4 Dave Jones 2004-11-29 09:37:53 UTC 
fc1 - eol