[Fwd: Re: [openib-general] kernel oops]

[Viswanath Krishnamurthy]

See inline..

On 02 Sep 2005 17:04:42 -0400, Hal Rosenstock <halr at voltaire.com> wrote:
> 
> On Fri, 2005-09-02 at 16:59, Viswanath Krishnamurthy wrote:
> > Here is the setup..
> 
> Thanks. A couple more questions:
> 
> > #svn info
> > Path: .
> >
> > URL: https://openib.org/svn/gen2/trunk
> > Repository UUID: 21a7a0b7-18d7-0310-8e21-e8b31bdbf5cd
> > Revision: 3295
> > Node Kind: directory
> > Schedule: normal
> > Last Changed Author: halr
> > Last Changed Rev: 3295
> > Last Changed Date: 2005-09-01 12:07:54 -0700 (Thu, 01 Sep 2005)
> >
> >
> > Patch applied to core/at.c and kernel 2.6.13 recompiled.
> >
> >
> > Machine A
> > =========
> > Running opensm
> >
> > Run ucmpost
> >
> > machine B
> > =========
> > ./ucmpost <ipaddr_of_machineA>
> 
> Are these back to back HCAs or is there a switch in between ?



There is a switch in between. A simple setup with 2 machines and a switch. 
The machines are running
2.6.13. One of them is running opensm.

> The problem is reproducible when you *cannot* ping each other
> 
> over IPoIB ?



Yes.. 

> [root at subnetmgr4 ~]# ibv_devinfo
> > hca_id: mthca0
> > fw_ver: 1.0.1
> > node_guid: 0002:c902:0040:0d00
> > sys_image_guid: 0002:c902:0040:0d03
> > max_mr_size: 0xffffffffffffffff
> > page_size_cap: 0x0
> > vendor_id: 0x02c9
> > vendor_part_id: 25204
> > hw_ver: 0x0
> > phys_port_cnt: 1
> > port: 1
> > state: PORT_ACTIVE (4)
> > max_mtu: invalid MTU (0) <
> > What is this ??>
> > active_mtu: invalid MTU (0)
> 
> If the program is right and those are the real values, somehow max_mtu
> is trashed which causes active_mtu to be invalid which could break all
> sorts of things...


Is there some issue with the HCA ? 

> sm_lid: 1
> > port_lid: 3
> > port_lmc: 0x00
> 
> That's on the remote (from the SM) machine.
> 
> -- Hal
> 
>
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