Messages in this thread |  | | | Date | Mon, 3 Dec 2007 11:38:15 +0100 | | From | Ingo Molnar <> | | Subject | Re: [feature] automatically detect hung TASK_UNINTERRUPTIBLE tasks | |
* Andi Kleen <andi@firstfloor.org> wrote:
> > Kernel waiting 2 minutes on TASK_UNINTERRUPTIBLE is certainly broken.
>
> What should it do when the NFS server doesn't answer anymore or when
> the network to the SAN RAID array located a few hundred KM away
> develops some hickup? [...]
maybe: if the user does a Ctrl-C (or a kill -9), the kernel should try
to honor it, instead of staying there stuck for a very long time
(possibly forever)?
I think you are somehow confusing two issues: this patch in no way
declares that "long waits are bad" - if the user _choses_ to wait for
the NFS server (after phoning IT quickly or whatever), he can wait an
hour. This patch only declares that "long waits _that the user has no
way to stop_ are quite likely bad".
Do you see the important distinction between the two cases? Please
reconsider your position (or re-state it differently), it just makes no
rational sense to me so far.
Ingo
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