Red Hat Bugzilla – Bug 25570
System will reboot during Linux probing the PCI bus on HP's LH4 with NetRAID-2M controller
Last modified: 2005-10-31 17:00:50 EST
Installing Linux Redhat7.0/6.2 to HP's LH4(Intel NX chipset) when NetRAID-
2M(AMI MegaRAID Controller) is in the primary bus(64bit).
System will reboot during Linux probing the PCI bus.
HP's NetRAID-2M contains a qlogic chip which is visible to the host bus.
According to the PCI trace:
Linux initiates I/O read one byte wide to the Qlogic SCSI Chip in the
Qlogic is not accesible to this type of cycle (I/O read one byte wide).
Linux retry the cycles three times, the last Qlogic initiate target
abort(stop asserted, devsel and trdy deasserted). This is valid!.
However, 180ns later Linux(not certain) resets the system.
My question: Does Linux susceptible to the target abort?
FYI, NetRAID-2M is 64bit adapter which is preferable to go to the 64bit PCI
Does this also happen with the install-floppies (or cd) from the recently
The issue could not be reproduced in LH4 systems in AMI Labs. HP Labs have
confirmed that it was behaving like my above mentioned report. I will pursue
with HP with using floppy's for installation.
email@example.com is actually the person responsible for this driver.
Peter, have you been involved in tracking this down?