Panic in RELENG_7_1 with fxp(4)

[Pyun YongHyeon]

On Mon, Jan 05, 2009 at 06:19:26AM -0600, Brandon Weisz wrote:
 > Pyun YongHyeon wrote:
 > >On Sat, Jan 03, 2009 at 10:16:58PM -0800, Garrett Cooper wrote:
 > > > On Jan 3, 2009, at 5:17 PM, Brandon Weisz wrote:
 > > > 
 > > > >After running 7-PRERELEASE from around November 25th, I upgraded  
 > > > >today to find the system panics repeatably on RELENG_7_1 sources.  I  
 > > > >can boot back to the old kernel and it operates as expected.  It  
 > > > >seems to be related to fxp(4).
 > > > >
 > > > >FreeBSD didy.internal 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Sat Jan  3
 > > > >18:11:18 CST 2009     bweisz at didy.internal:/usr/obj/usr/src/sys/ 
 > > > >DIDY  i386
 > > > >
 > 
 > ....
 > 
 > > > >
 > > > >I replaced the fxp(4) card with an old xl(4) card lying on my desk  
 > > > >and the panics stopped.  Is this a failing nic card or some other  
 > > > >trigger?
 > > > >
 > > > >Brandon
 > > > 
 > > > Memory serves me correctly an MFC was done not too long before 7.1  
 > > > release was setup.
 > > > 
 > >
 > >I don't know what MFCes were done, at least I didn't MFC any
 > >changes I made.
 > >
 > > > Let's see what Pyun says...
 > > > 
 > >
 > >I'm not sure what is root cause of this panic. If you can reliably
 > >reproduce the panic would you let me know?
 > >CURRENT has a couple of fixes for edge-cases as well as some new
 > >hardware features(TSO, VLAN hardware tagging and WOL etc). Would
 > >you try latest fxp(4) in HEAD?
 > >I think you can use cvsweb interface to get latest files.
 > >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/fxp/if_fxp.c
 > >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/fxp/if_fxpreg.h
 > >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/fxp/if_fxpvar.h
 > >
 > 
 > Hi Pyun
 > 
 > The system reliably panics on boot up.  I tested fxp from HEAD with the 
 > same result.
 > 
 > 7.1-RELEASE = Panic
 > 7.1-RELEASE with fxp from HEAD = Panic
 > 7.1-PRERELEASE from Tue Nov 25 = operates as expected
 > 
 > This is an old card.  Some details on the card:
 > 
 > fxp0: <Intel 82559 Pro/100 Ethernet> port 0xd100-0xd13f mem 
 > 0xfca03000-0xfca03fff,0xfc800000-0xfc8fffff irq 17 at device 9.0 on pci0
 > miibus0: <MII bus> on fxp0
 > inphy0: <i82555 10/100 media interface> PHY 1 on miibus0
 > inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 > fxp0: Ethernet address: 00:d0:b7:6c:1c:0a
 > fxp0: [ITHREAD]
 > 
 > fxp0 at pci0:0:9:0:	class=0x020000 card=0x000b8086 chip=0x12298086 
 > rev=0x08 hdr=0x00
 >     vendor     = 'Intel Corporation'
 >     device     = '82550/1/7/8/9 EtherExpress PRO/100(B) Ethernet Adapter'
 >     class      = network
 >     subclass   = ethernet
 > 
 > As a test, I unplugged the ethernet cable and the system booted fully, 
 > however it produced a panic as soon as I connected the cable.  This 
 > backtrace is from 7.1-RELEASE with fxp sources from HEAD.
 > 

I still can't reproduce this but would you try fxp(4) in the
following URLs?
http://people.freebsd.org/~yongari/fxp/if_fxp.c
http://people.freebsd.org/~yongari/fxp/if_fxpreg.h
http://people.freebsd.org/~yongari/fxp/if_fxpvar.h

-- 
Regards,
Pyun YongHyeon