Re: Recursive deadlock on die_lock

From: Andrew Morton (akpm@zip.com.au)
Date: Sun Oct 14 2001 - 01:42:51 EST


Keith Owens wrote:
>
> ...
> If show_registers() fails (which it does far too often on IA64) then
> the system deadlocks trying to recursively obtain die_lock. Also
> die_lock is never used outside die(), it should be proc local.
> Suggested fix:
>

Looks to me like it'll work. But why does ia64 show_registers()
die so easily? Can it be taught to validate addresses before
dereferencing them somehow?
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