sparc64/151404: Kernel hangs before mounting root fs

[Marius Strobl]

The following reply was made to PR sparc64/151404; it has been noted by GNATS.

From: Marius Strobl <marius at alchemy.franken.de>
To: Dmitry Afanasiev <KOT at MATPOCKuH.Ru>, yongari at freebsd.org
Cc: bug-followup at freebsd.org
Subject: Re: sparc64/151404: Kernel hangs before mounting root fs
Date: Sat, 16 Oct 2010 01:25:17 +0200

 On Fri, Oct 15, 2010 at 11:27:55PM +0400, Dmitry Afanasiev wrote:
 > Hello!
 > 
 
 Hi,
 
 thanks for testing.
 
 > After a kernel update system booted, but all onboard interfaces (bge0-4) 
 > got status DOWN and system became fully unavailable via network.
 > I rebooted the system twice, but without results.
 > After booting old kernel all works properly - interfaces up and etc.
 > 
 > I'm confused. Is incorrect interface's status result of this change, or 
 > I got another problem with bge driver?
 
 No, this most likely is fallout from the recent changes to bge(4), I've
 already got bitten by two regressions they caused and apparently there's
 at least a third one. As of r213890 I can confirm that the interfaces get
 no carrier when booting the kernel from disk, however when booting via
 net at least that interface gets up. Yongari, could you please look into
 this? The interfaces in question are:
 bge0: <Broadcom BCM5715 A3, ASIC rev. 0x009003> mem 0x4200000-0x420ffff,0x4010000-0x401ffff at device 4.0 on pci7
 bge0: CHIP ID 0x00009003; ASIC REV 0x09; CHIP REV 0x90; PCI-X 0.0 on pci0
 miibus0: <MII bus> on bge0
 brgphy0: <BCM5714 10/100/1000baseTX PHY> PHY 1 on miibus0
 brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
 bge0: Ethernet address: 00:14:4f:c3:df:7a
  
 bge0 at pci0:9:4:0:        class=0x020000 card=0x1668108e chip=0x166814e4 rev=0xa3hdr=0x00
     vendor     = 'Broadcom Corporation'
     device     = 'NetXtreme BCM5714 Gigabit Ethernet'
     class      = network
     subclass   = ethernet
     cap 07[40] = PCI-X 64-bit supports 133MHz, 2048 burst read, 1 split transaction
     cap 01[48] = powerspec 2  supports D0 D3  current D0
     cap 03[50] = VPD
     cap 05[58] = MSI supports 8 messages, 64 bit
 
 In case it matters they are using MSIs.
 
 Marius