NetBSD Problem Report #53749

From martin@duskware.de  Tue Nov 27 19:20:49 2018
Return-Path: <martin@duskware.de>
Received: from mail.netbsd.org (mail.netbsd.org [199.233.217.200])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(Client CN "mail.NetBSD.org", Issuer "mail.NetBSD.org CA" (not verified))
	by mollari.NetBSD.org (Postfix) with ESMTPS id 9D5A27A156
	for <gnats-bugs@gnats.NetBSD.org>; Tue, 27 Nov 2018 19:20:49 +0000 (UTC)
From: martin@NetBSD.org
Reply-To: martin@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: NFS failure / sk driver bug?
X-Send-Pr-Version: 3.95

>Number:         53749
>Category:       kern
>Synopsis:       NFS failure / sk driver bug?
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 27 19:25:00 +0000 2018
>Closed-Date:    Thu Feb 21 12:55:07 +0000 2019
>Last-Modified:  Thu Feb 21 12:55:07 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.26
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-porter.duskware.de 8.99.25 NetBSD 8.99.25 (PORTER) #7: Thu Nov 8 10:00:36 CET 2018 martin@seven-days-to-the-wolves.aprisoft.de:/work/src/sys/arch/i386/compile/PORTER i386
Architecture: i386
Machine: i386
>Description:

Since upgrading the kernel on this machine I can not NFS mount volumes
from a nearby (gigE connected to the same switch) server running NetBSD 7.2
any more.

I suspect bugs in the sk driver, pushed into effect by the TCP mount
changes or something.


pci2: i/o space, memory space enabled
skc0 at pci2 dev 5 function 0: ioapic0 pin 22
skc0: interrupt moderation is 0 us
skc0: 3Com Gigabit LOM (3C940) rev. (0x1)
sk0 at skc0 port A: Ethernet address 00:0e:a6:28:e3:ec
makphy0 at sk0 phy 0: Marvell 88E1011 Gigabit PHY, rev. 3
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
skc0: interrupt moderation is 1000 us



>How-To-Repeat:
no idea, probably needs this exact hardware + switch and network environment.

>Fix:
n/a

>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->closed
State-Changed-By: martin@NetBSD.org
State-Changed-When: Thu, 21 Feb 2019 12:55:07 +0000
State-Changed-Why:
Assume broken hardware - testing with older kernels shows the same symptoms
(small pkts mostly work, bigger ones have high loss rates)


>Unformatted:

Home	PR Database Search