Re: [ANNOUNCE 0/6] Open-iSCSI High-Performance Initiator for Linux

[Matt Mackall <mpm@selenic.com>]

On Wed, Mar 09, 2005 at 11:29:03AM -0800, Bryan Henderson wrote:
> I'd like to remind everyone that user space processes aside, there's still 
> a basic ISCSI initiator resource inversion that needs to be fixed to avoid 
> deadlock:
> 
> ISCSI initiator driver sits below the memory pool
>   (I..e a pageout involving ISCSI might be prerequisite to getting memory)
> Socket layer sits below ISCSI
>   (ISCSI initiator driver relies on socket services)
> Memory pool sits below socket layer
>   (socket layer allocates memory from the main pool)
> 
> One might say as long as that's there, close is good enough on the user 
> space initiator component.

This issue is becoming increasingly pressing and hopefully there'll be
a plan for addressing it soon. Unfortunately, none of the proposed
solutions help the userspace inversion problem.

-- 
Mathematics is the supreme nostalgia of our time.