kern/118206: kmem_map too small panic when extracting tar on zfs

[AL]

>Number:         118206
>Category:       kern
>Synopsis:       kmem_map too small panic when extracting tar on zfs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 22 20:50:00 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     AL
>Release:        7.0-BETA3
>Organization:
MGUL
>Environment:
FreeBSD storage.dl524 7.0-BETA3 FreeBSD 7.0-BETA3 #0: Fri Nov 16 22:20:33 UTC 2007
>Description:
Kernel panic (kmem_map too small) when extracting large .tar archive on ZFS :'-(

Arch i386, 2 gb ram, 2x500gb sata hdd, ath wifi...

Modules loaded:
sound, snd_hda, snd_ich, acpi, zfs, pflog, pf, blank_saver.
PF can be disabled or enabled.
>How-To-Repeat:
Make tar archive ~8 gb on ZFS;
tar -xf arc.tar;
wait 3-7 minutes...

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: