Syncer is broken

[Bernd Ernesti <netbsd%lists.veego.de@localhost>]

Hi,

I had a panic last week, when I plugged in a usb cable for an active
device and after the reboot I lost a few directories/files which were
modified a few minutes before that panic happened.

The filesystems were wapbl ones, mounted with the log option.

I did a fsck -f afterwards which did not show any issues but at least
one firefox file contained fragments from more then one file.

I noticed that it can take a few seconds before a sync command returns
while a few MB are written to the disks.
I have 4 disks with raidframe raid 1 sets (2 disks in each set).

e.g.
$ time sync
0.000u 0.160s 0:14.14 1.1%      0+0k 104+10717io 0pf+0w

After the panic I removed the wapbl option from /home because it
seems too dangerous for me.

Bernd

P.S. NetBSD 6.0_BETA2 / i386