Re: strange 3c59x behaviour under 2.6.11.7

[Alexander Nyberg <alexn@dsv.su.se>]

> Some background for the linux-kernel folks:
> 
> http://www.scyld.com/pipermail/vortex/2005-May/002483.html
> 
> http://www.scyld.com/pipermail/vortex/2005-May/002484.html
> 
> On Tue, 3 May 2005, Bogdan Costescu wrote:
> 
> > > Any ideas on what is causing this problem, and how to fix it?
> >
> > Try booting with acpi=off.
> > Try updating BIOS and/or modify power related options in BIOS.
> 
> I've tried disabling ACPI in the kernel, turning on APM support in the
> BIOS, and the combination of the two, and unfortunately the problem
> persisted.
> 
> However, I found this patch (the one at the very bottom of the page):
> http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg78894.html
> 
> And after adapting it to the 2.6.11.7 kernel, everything works again!
> I've rebooted the machine several times, and the 3com cards initialized
> successfully every time.
> 
> I'm CC'ing linux-kernel in the hopes that this fix can make it into the
> mainstream kernel sometime soon.  I'm sure my mother would appreciate it
> greatly. :)
> 
> Please CC my e-mail address in any replies as I am not subscribed to this
> list.

[netdev needs to be up on the CC on this too]

Yeah I get the same behaviour reliably when doing kexec on a box with
the 3c59x, lspci shows:

0000:00:0f.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 74)
        Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (2500ns min, 2500ns max), Cache Line Size: 0x08 (32 bytes)
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at b000 [size=128]
        Region 1: Memory at ef004000 (32-bit, non-prefetchable) [size=128]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=2 PME-
00: b7 10 00 92 07 00 10 02 74 00 00 02 08 20 00 00
10: 01 b0 00 00 00 40 00 ef 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 b7 10 00 10
30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 0a 0a


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