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Date:      Mon, 7 Sep 1998 15:19:04 +0100
From:      Niall Smart <nialls@euristix.ie>
To:        freebsd-bugs@FreeBSD.ORG
Subject:   Processes get "stuck" accessing filesystems backed by vnode devices
Message-ID:  <98Sep7.153941bst.19716@gateway.euristix.ie>

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Hi,

I configured a 100 meg vnode and mounted it and tried to fill it up
using dd, it hung after a while and so did a number of other processes
which tried to access it:

[nsmart@phrynia ~]$ ps -wwal | egrep 'ls|mount|dd' 
 1000  8140  8138   0 -14  0   368   72 inode  D+    p0    0:00.00 ls
-la /2
    0  8135  7984   4  -2  0   236   84 getblk D+    p1    0:00.60 dd
if=/dev/zero of=foo bs=8192
    0  8175  8167   0  -2  0   308   28 getblk D+    p2    0:00.01
umount -f /2

If I can reproduce it, I'll provide more information.

Niall

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