SDB:SCSI Parity Errors in Systems with SCSI Controllers Supported by the sym53c8xx Module

Symptom

SCSI parity errors occur during the installation or operation of systems equipped with a SCSI controller supported by the sym53c8xx module:

 -----------------------------------------
 linux kernel: sym0: SCSI parity error detected: SCR1=132 DBC=50000000 SBCL=0
 linux kernel: sym0: SCSI parity error detected: SCR1=132 DBC=50000000 SBCL=0
 sym0: SCSI BUS reset detected.
 sym0: SCSI BUS has been reset.
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Solution

Append the parameter

hwprobe=-pci

to the boot options in the boot menu:

boot options
hwprobe=-pci

This parameter can be inserted in the boot loader configuration while the system is running. This procedure is described in the support database article SDB:Inserting Boot Options Permanently

If the attempt to load the module sym53c8xx fails during installation, start a new installation and select

"Manual Installation"

This starts linuxrc's text-based installation menu. Load the SCSI kernel module sym53c8xx manually from the Kernel modules menu and append the parameter

sym53c8xx=pcifix:3

to the existing Options. Insert a blank before the actual parameter:

[space]sym53c8xx=pcifix:3 <keyword>sym53c8xx,scsi,parity,errors,hwprobe</keyword>