[Openib-windows] RE: "blue screen" on IP over IB code

[Fab Tillier]

> From: Tzachi Dar [mailto:tzachid at mellanox.co.il]
> Sent: Sunday, September 04, 2005 8:54 AM
> 
> Hi Fab,
> 
> While working with our stack, I have received a blue screen. This happened
> when the remote machine that was running open sm has received a blue screen
> as well (this will probably be the subject of another mail, once I have more
> time to debug it).
> 
> The problem seems to be in the function !__ipoib_ats_reg_cb
> [f:\projinf2\wininf\trunk\ulp\ipoib\kernel\ipoib_driver.c @ 2220]
> 
> The immediate problem is that p_adapter variable is not from the correct
> type. This is because there is a cast from p_reg_svc_rec->svc_context to the
> type ipoib_adapter_t.

What revision are you running?  The svc_context in the current source is cast to
an ats_reg_t structure, which itself has a pointer to the owning adapter object.

> This is probably a mistake since the type of the p_reg_svc_rec is dapl.
> (service name = unsigned char [64] "DAPL Address Translation Service")

IPoIB performs all ATS registrations for assigned IP addresses.  The service
name for ATS is defined by the ATS spec as "DAPL Address Translation Service".
There was discussion in the DAT collaborative about removing the "DAPL" from the
name, but that would have broken backward compatibility so it was left.

Assuming you aren't using the latest source, update and let me know if you see
it again.

Thanks,

- Fab