[ofw] bug in ipoib ?

[Tzachi Dar]

Is there a way to reproduce this issue?

Thanks
Tzachi 

> -----Original Message-----
> From: ofw-bounces at lists.openfabrics.org 
> [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Sean Hefty
> Sent: Saturday, December 20, 2008 3:24 AM
> To: ofw at lists.openfabrics.org
> Subject: [ofw] bug in ipoib ?
> 
> I hit a bug in ipoib that may be worth looking into.  I don't 
> see anything obviously wrong looking at the debug output 
> (like a NULL pointer somewhere), but I'm not overly familiar 
> with the code either.
> 
> nt!DbgBreakPointWithStatus
> nt!KiBugCheckDebugBreak+0x1e
> nt!KeBugCheck2+0x640
> nt!KeBugCheckEx+0x104
> nt!KiBugCheckDispatch+0x74
> nt!KiPageFault+0x207
> ipoib!cl_qmap_remove_item+0x209
> ipoib!__cl_free_trk+0x70
> ipoib!cl_qcpool_destroy+0x11e
> ipoib!cl_qpool_destroy+0x4a
> ipoib!__buf_mgr_destroy+0x174
> ipoib!__port_free+0x129
> ipoib!__destroy_cb+0x142
> ipoib!__destroy_obj+0x146
> ipoib!cl_obj_destroy+0x66
> ipoib!ipoib_port_destroy+0x16a
> ipoib!__ipoib_pnp_cb+0x812
> ibbus!__pnp_notify_user+0x865
> ibbus!__pnp_process_remove_port+0x35f
> ibbus!__pnp_process_remove_ca+0xc3
> 
> FAULTING_SOURCE_CODE:  
>   1016: 	 * This assignment may modify the parent 
> pointer of the nil
> node.
>   1017: 	 * This is inconsequential.
>   1018: 	 */
>   1019: 	p_child->p_up = p_del_item->p_up;
> > 1020: 	(*__cl_map_get_parent_ptr_to_item( p_del_item 
> )) = p_child;
>   1021: 
>   1022: 	if( p_del_item->color != CL_MAP_RED )
>   1023: 		__cl_map_del_bal( p_map, p_child );
>   1024: 
>   1025: 	/*
> 
> Please note that this occurred while testing winverbs rdma_cm 
> support.  I have a modified version of ibbus.sys running on 
> my system, so it's possible that something in my code led to 
> this issue.  All other code is around SVN 1724.  The bug 
> occurred after I had installed a new version of the 
> winverb.sys driver and was executing 'devcon restart 
> =infinibandcontroller'.  (Winverbs was not running on the 
> system at the time of the crash.)
> 
> - Sean
> 
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