Subject: kern/10122: /var/run as mount_mfs
To: None <firstname.lastname@example.org>
From: None <email@example.com>
Date: 05/15/2000 11:14:14
>Synopsis: /var/run as mount_mfs
>Arrival-Date: Mon May 15 11:15:00 PDT 2000
>Originator: Hitoshi Matsunawa
>Release: NetBSD 1.4.2 i386
System: NetBSD 1.4.2 i386
Running daemons: syslogd, named, update, cron, apmd, inetd
Mounted (mfs) filesystem: /tmp and /var/run mounted as mfs
If ``halt''-ed immediately after creating some number of dirty buffer,
system will fail to shutdown.
% mknmz -a ~/src/linux-2.3.51/Documentation/
% super halt
If I changed mfs_start() (in src/ufs/mfs/mfs_vfops.c) as follows, the
problem disappear (at least for me).
signaled = tsleep (...);
It may still potentially problematic, since mfs i/o is only served by
a mfs process. When a mfs process enters into doumount(), mfs i/o
won't be served for other processes (other than mfs process itself).