[openib-general] RE: ib_uat kernel panic without async callback

[Arlin Davis]

Hal,

>-----Original Message-----
>From: Hal Rosenstock [mailto:halr at voltaire.com]
>Sent: Monday, July 11, 2005 4:21 PM
>To: Davis, Arlin R
>Cc: openib-general at openib.org
>Subject: Re: ib_uat kernel panic without async callback
>
>Hi Arlin,
>
>On Mon, 2005-07-11 at 18:37, Davis, Arlin R wrote:
>> I was attempting to call ib_at_route_by_ip() in sync mode and get the
>> following oops:
>>
>> You can change the att.c (line 193) example as follow to duplicate:
>>
>>   r = ib_at_route_by_ip(0x1400a8c0, 0, 0, 0,
>>                                       att_rt + i, NULL, NULL);
>>
>> I will go back to async mode for now.
>>
>> Thanks,
>>
>> -arlin
>
>How was IPoIB configured ? Was ib0 on the 192.168.0.x subnet ?
>

ib0       Link encap:UNSPEC  HWaddr 00-00-04-04-FE-80-00-00-00-00-00-00-00-00-00-00
          inet addr:192.168.0.19  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::202:c902:0:409d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:2044  Metric:1
          RX packets:19 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:128
          RX bytes:1204 (1.1 KiB)  TX bytes:1108 (1.0 KiB)

>What do you mean by "back to async mode" ? Did you use async mode before
>?

Yes, I used async mode similar to the example before trying the call synchronously. If I provide the
async_comp with the ib_at_route_by_ip() followed by ib_at_callback_get() then it seems to work. If
async_comp == NULL then it blows up in the ib_at_route_by_ip call.

-arlin

>
>-- Hal
>
>