>Number:         8705
>Category:       port-alpha
>Synopsis:       under mild disk load, alpha may panic
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-alpha-maintainer (NetBSD/alpha Portmaster)
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 29 11:39:01 1999
>Last-Modified:
>Originator:     Seebs
>Organization:
	
>Release:        October 28
>Environment:
System: NetBSD gandalf.plethora.net 1.4M NetBSD 1.4M (GANDALF) #0: Wed Oct 27 21:20:08 CDT 1999 seebs@gandalf.plethora.net:/usr/src/sys/arch/alpha/compile/GANDALF alpha


>Description:
	System has a pair of EIDE drives merged via ccd.  Writes to this
	partition occasionally yield
savecore: reboot after panic: biodone already
	but I don't know how to usefully debug this further.

>How-To-Repeat:
	untar large file on the ccd'd drive.

	The controller is one of the Promise controllers supported by the new
	pciide driver, but it has a local patch (taken off the NetBSD mailing
	lists) to coerce the IO area under 0x8000, because this is apparently
	necessary on this system.

>Fix:
>Audit-Trail:
>Unformatted: