Patch-ID# 108100-03
Keywords: alternate pathing BAD TRAP panic mether_rarp mutex_panic 
Synopsis: AP 2.2: networking switching mutex_panic HW chksumming 
Date: Sep/11/00

Solaris Release: 7

SunOS release: 5.7

Unbundled Product: Alternate Pathing (AP)

Unbundled Release: 2.2

Topic: AP 2.2:networking switching mutex_panic HW chksumming 

BugId's fixed with this patch: 4215821 4244664 4291115 4297640 4311971 4337444 4338346 4339219

Changes incorporated in this version: 4297640 4337444 4338346 4339219

Relevant Architectures: sparc

Patches accumulated and obsoleted by this patch: 

Patches which conflict with this patch:

Patches required with this patch:

Obsoleted by:

Files included with this patch:

/kernel/drv/mge
/kernel/drv/mhme
/kernel/drv/mle
/kernel/drv/mnf
/kernel/drv/mqe
/kernel/drv/mqfe
/kernel/drv/sparcv9/mge
/kernel/drv/sparcv9/mhme
/kernel/drv/sparcv9/mle
/kernel/drv/sparcv9/mnf
/kernel/drv/sparcv9/mqe
/kernel/drv/sparcv9/mqfe

Problem Description:

4297640 BAD TRAP panic with mether_rarp with AP network switching
4337444 PANIC: "mutex_panic" with AP switching and heavy Gigabit traffic
4338346 AP patch 108719-01 for 4311971 regresses
4339219 AP has improper handling of HW chksumming (ICK_M_CTL_MAGIC mblks)

(from 108100-02)

4291115 switching of mether with IP traffic can cause panic
4311971 recursive mutex_enter panic on OS 2.6 running with AP 2.3 and Trunking/GEM

(from 108100-01)

4215821 first manual ap switch of ethernet metadevice loses communication for a while
		Due to the various configurations of network switches
		and routers, there may still be some period immediately
		following a switch on the AP path during which traffic
		will appear to be suspended.  This period can last up
		to 90 seconds, after which traffic will resume
		normally.  This is a side effect of the various media
		negotiation and topology "learning" used by some switch
		manufacturers.  It may be possible to reduce this delay
		by configuring the underlying device drivers (e.g. hme)
		and the switch with similiar link parameters (speed,
		duplex), and disabling the autoconfiguration features
		on your switch or router.  Consult the physical device
		driver and switch documentation for details on the
		specific steps.  Note that in no case should a delay of
		more than 90 seconds be experienced, and in no case
		should this cause TCP or RPC connections to be
		dropped.
4244664 SECURITY: meta drivers have world read/write permissions!

Patch Installation Instructions:
--------------------------------
Refer to the Install.info file within the patch for instructions on
using the generic 'installpatch' and 'backoutpatch' scripts provided
with each patch. Any other special or non-generic installation
instructions should be described below.

Special Install Instructions:
-----------------------------

none