Subject: port-hp300/3724: Bad login in dca/apci interrupt handler
To: None <gnats-bugs@gnats.netbsd.org>
From: Mike <mike@black.smith.net.au>
List: netbsd-bugs
Date: 06/08/1997 01:29:50
>Number: 3724
>Category: port-hp300
>Synopsis: Bad login in dca/apci interrupt handler
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: gnats-admin (GNATS administrator)
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Jun 8 01:35:07 1997
>Last-Modified:
>Originator: Mike
>Organization:
Mike Smith Network Support
>Release: 970608
>Environment:
System: NetBSD black.smith.net.au 1.2D NetBSD 1.2D (TEST) #3: Mon May 5 08:55:25 PDT 1997 root@pressed.spam.frisbee.net.au:/local0/work/sys/arch/hp300/compile/TEST hp300
System possibly showing symptoms is a HP9000/425t.
>Description:
The logic in the apci/dca receive interrupt handler for RXRDY
interrupts reads as follows :
read byte;
pass to upper layer;
if fifo,
while more bytes
if byte is data
read byte;
pass to upper layer;
else
handle as status;
This is erroneous, as it discards status associated with received
bytes.
>How-To-Repeat:
>Fix:
Ultimately, dcaintr/apciintr need to be restructured, or replaced
if/when the com.c driver is extended to work with these devices.
In the short term, should the maintainer desire, I would be
willing to recode these handlers to correct the problem.
>Audit-Trail:
>Unformatted: