Re: kern/97208: [firewire] System hangs / locks up when a firewire disk is attached

On Tue, 2009-02-10 at 19:34 +0100, Torfinn Ingolfsen wrote:
> On Mon, 09 Feb 2009 12:42:08 -0800
> Sean Bruno <[email protected]> wrote:
> 
> > No.  The "ports" in "fwcontrol -p" are physical.  
> > 
> > Can you send a fwcontrol -p with NOTHING connected?
> 
> Sure.
> 
> root@kg-fil# uname -a
> FreeBSD kg-fil.kg4.no 6.2-STABLE FreeBSD 6.2-STABLE #20: Mon Mar 12
> 23:04:49 CET 2007     [email protected]:/usr/obj/usr/src/sys/FIL60
> amd64
> 
> root@kg-fil# fwcontrol -p
> === base register ===
> 0x03 0x05 0xe3 0xe2 0xc4 0x03 0x10 0x20 
> Physical_ID:0  R:1  CPS:1
> RHB:0  IBR:0  Gap_Count:5
> Extended:7 Num_Ports:3
> PHY_Speed:7 Delay:2
> LCtrl:1 C:1 Jitter:0 Pwr_Class:4
> WDIE:0 ISBR:0 CTOI:0 CPSI:0 STOI:0 PEI:0 EAA:1 EMC:1
> Max_Legacy_SPD:0 BLINK:1 Bridge:0
> Page_Select:1 Port_Select0
> 
> === page 0 port 0 ===
> 0xf8 0x60 0x3b 0x00 0x00 0x00 0x00 0x00 
> Astat:3 BStat:3 Ch:1 Con:0 RXOK:0 Dis:0
> Negotiated_speed:3 PIE:0 Fault:0 Stanby_fault:0 Disscrm:0 B_Only:0
> DC_connected:0 Max_port_speed:3 LPP:1 Cable_speed:3
> Connection_unreliable:0 Beta_mode:0
> Port_error:0x0
> Loop_disable:0 In_standby:0 Hard_disable:0
> 
> === page 0 port 1 ===
> 0xf8 0x60 0x3b 0x00 0x00 0x00 0x00 0x00 
> Astat:3 BStat:3 Ch:1 Con:0 RXOK:0 Dis:0
> Negotiated_speed:3 PIE:0 Fault:0 Stanby_fault:0 Disscrm:0 B_Only:0
> DC_connected:0 Max_port_speed:3 LPP:1 Cable_speed:3
> Connection_unreliable:0 Beta_mode:0
> Port_error:0x0
> Loop_disable:0 In_standby:0 Hard_disable:0
> 
> === page 0 port 2 ===
> 0xf8 0x60 0x3b 0x00 0x00 0x00 0x00 0x00 
> Astat:3 BStat:3 Ch:1 Con:0 RXOK:0 Dis:0
> Negotiated_speed:3 PIE:0 Fault:0 Stanby_fault:0 Disscrm:0 B_Only:0
> DC_connected:0 Max_port_speed:3 LPP:1 Cable_speed:3
> Connection_unreliable:0 Beta_mode:0
> Port_error:0x0
> Loop_disable:0 In_standby:0 Hard_disable:0
> 
> === page 1 ===
> 0x02 0x00 0x08 0x00 0x28 0x83 0x13 0x04 
> Compliance:2
> Vendor_ID:0x080028
> Product_ID:0x831304
> 
> HTH


Ah, excellent.  Now I see.  In your previous output of "fwcontrol -p" I
mistakenly inferred that a "Negotiated_speed" of "3" meant something was
connected. 

Instead, that appears to be the default.  The clue should have been that
the Negotiated_speed of "0" was where the Maxtor was connected.

"0" in this case, shows that the firewire stack just plain failed
alltogether to negotiate correctly(since your Maxtor is 400/800).

So, now I need to go and add some debugging and figure out what is going
on when you connect the HD.

Are you comfortable with patches to kernel source and recompilation?

Sean

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