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Re: port-sparc64/51647: deadlock in NFS client with UDP (IPv4) on sparc64
The following reply was made to PR port-sparc64/51647; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
Subject: Re: port-sparc64/51647: deadlock in NFS client with UDP (IPv4) on sparc64
Date: Wed, 23 Nov 2016 22:26:34 +0100
On Wed, Nov 23, 2016 at 03:15:00PM +0000, rokuyama%rk.phys.keio.ac.jp@localhost wrote:
> Then tar freezes with the message below appearing in dmesg:
> nfs server cubietruck:/exports/sb100: not responding
> After that any operation to rootfs is blocked.
> This problem is completely reproducible. It occurs both with on-board
> (gem) and PCI (re) ethernet adapters.
We have to look closer at packet traces in the locked up state to find out
whether the fault is at the server or the client side. It is unlikely that
this is a sparc64 MD problem (but not impossible).
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