Hello
I'm running 7.0-BETA1 with patch
http://people.freebsd.org/~pjd/patches/vm_kern.c.2.patch -- without this
patch, the panic come sooner.
I setup my root fs under zfs. the boot fs is under gmirror+ufs.
loader.conf:
#--- Tuning for ZFS - http://wiki.freebsd.org/ZFSTuningGuide
vm.kmem_size="600M" # Size of kernel memory
vm.kmem_size_max="600M" # Max kmem size
vfs.zfs.debug="0" # ZFS - debug messages
vfs.zfs.prefetch_disable="1" # ZFS - disable prefetch
vfs.zfs.arc_max="128M" # ZFS - maximum ARC size : 128MB
#--- Mount root filesystem from ZFS
zfs_load="YES" # Load ZFS module
vfs.root.mountfrom="zfs:pool0" # Root filesystem is pool0
zpool status:
pool: pool0
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
pool0 ONLINE 0 0 0
mirror ONLINE 0 0 0
da0s2 ONLINE 0 0 0
da1s2 ONLINE 0 0 0
errors: No known data errors
pool: pool1
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
pool1 ONLINE 0 0 0
da0s3 ONLINE 0 0 0
da1s3 ONLINE 0 0 0
errors: No known data errors
pool: pool2
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
pool2 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ad4s3 ONLINE 0 0 0
ad6s3 ONLINE 0 0 0
errors: No known data errors
When copying avi files (~300MB each) from pool0 to a ufs under gjournal
gjournal list
Geom name: gjournal 2719642309
ID: 2719642309
Providers:
1. Name: ad4s2.journal
Mediasize: 49384282112 (46G)
Sectorsize: 512
Mode: r1w1e2
Consumers:
1. Name: ad4s2
Mediasize: 51531766272 (48G)
Sectorsize: 512
Mode: r1w1e1
Jend: 51531765760
Jstart: 49384282112
Role: Data,Journal
I got:
Panic String: kmem_malloc(131072): kmem_map too small: 400539648 total
allocated
Just before the panic, I observe a freeze of 8 sec. as by the patch.
Anyway, I'm quite pleased with zfs
Henri
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