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 |
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* 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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