Messages in this thread | | | Date | Tue, 22 Nov 2011 07:33:26 -0800 | From | Tejun Heo <> | Subject | Re: [RFC][PATCH 0/3] fork: Add the ability to create tasks with given pids |
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Hello,
On Tue, Nov 22, 2011 at 12:04:38PM +0000, Pedro Alves wrote: > This whole userspace C/R stuff and being able to set the child's pid has potential > of being very useful for GDB too, allowing a much better reimplementation of its > old checkpointing feature [*], and allowing for a faster reverse debugging > implementation, by being able to do faster rewinding -- restore snapshot and replay > instructions up to N (by single stepping or running to breakpoint), rather than > manually undoing the effects of each instruction, one by one. > > IOW, root only would be a shame from GDB's perspective.
Would CAP_CHECKPOINT be a shame too? I'm reluctant about priviledge through fd inheritance mostly because of its unusualness. I don't think priv management is a good problem space for small creative solutions. We're much better off with mundane mechanisms which people are already familiar with and is easy to account for.
Thank you.
-- tejun
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