ZFS on AMD64 - any recent crashes?
Gelsema, P (Patrick) - FreeBSD
freebsd at superhero.nl
Sun Jan 6 14:37:55 PST 2008
On Sun, January 6, 2008 19:25, Ivan Voras wrote:
> Hi,
>
> In light of the recent discussion about ZFS stability, does anyone still
> have kmem_map_too_small panics on AMD64 after tuning it (as presented in
> http://wiki.freebsd.org/ZFSTuningGuide)?
>
> I'm interested in reports like this:
> http://kerneltrap.org/mailarchive/freebsd-current/2007/9/21/271557 (note
> that this report is for an untuned system).
>
>
I have my Music and movies collection on a ZFS pool for more than a month
now which is shared through samba over the network with an XBox
MediaCenter without any problem, hitches or disconnects.
No tuning. Everything out of the box.
The zfs pool is jailed and within the jail runs samba.
The only "issue" I have is that whenever I reboot that I have to re-jail
the zfs pool and remount it within the jail. Would love if this could be
automatic.
Details:
FreeBSD hulk.superhero.nl 7.0-RC1 FreeBSD 7.0-RC1 #0: Mon Dec 24 18:52:08
CET 2007 admin at hulk.superhero.nl:/usr/obj/usr/src/sys/GENERIC amd64
CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4800+ (2511.41-MHz K8-class
CPU) Origin = "AuthenticAMD" Id = 0x60fb1 Stepping = 1
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
Features2=0x2001<SSE3,CX16>
AMD Features=0xea500800<SYSCALL,NX,MMX+,FFXSR,RDTSCP,LM,3DNow!+,3DNow!>
AMD Features2=0x11f<LAHF,CMP,SVM,ExtAPIC,CR8,Prefetch>
Cores per package: 2
usable memory = 3526770688 (3363 MB) ** actual 4 GB but I have memory hole
mapping disabled as enabling renders the system unusable due to being
unable to mount / ***
avail memory = 3411177472 (3253 MB)
last pid: 95799; load averages: 0.00, 0.00, 0.00 up 13+03:50:10
23:06:09
64 processes: 1 running, 63 sleeping
CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
Mem: 107M Active, 478M Inact, 626M Wired, 216K Cache, 214M Buf, 2050M Free
Swap: 4096M Total, 4096M Free
hulk# sysctl -a | grep kmem
vm.kmem_size_scale: 3
vm.kmem_size_max: 419430400
vm.kmem_size_min: 0
vm.kmem_size: 419430400
hulk# zpool status
pool: zfspublic
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
zfspublic ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ad4 ONLINE 0 0 0
ad6 ONLINE 0 0 0
ad8 ONLINE 0 0 0
errors: No known data errors
hulk# zfs get all
NAME PROPERTY VALUE SOURCE
zfspublic type filesystem -
zfspublic creation Mon Dec 3 15:13 2007 -
zfspublic used 83.7G -
zfspublic available 829G -
zfspublic referenced 24.0K -
zfspublic compressratio 1.00x -
zfspublic mounted yes -
zfspublic quota none default
zfspublic reservation none default
zfspublic recordsize 128K default
zfspublic mountpoint /zfspublic default
zfspublic sharenfs off default
zfspublic checksum on default
zfspublic compression off default
zfspublic atime on default
zfspublic devices on default
zfspublic exec on default
zfspublic setuid on default
zfspublic readonly off default
zfspublic jailed off default
zfspublic snapdir hidden default
zfspublic aclmode groupmask default
zfspublic aclinherit secure default
zfspublic canmount on default
zfspublic shareiscsi off default
zfspublic xattr off temporary
zfspublic copies 1 default
zfspublic/batman type filesystem -
zfspublic/batman creation Mon Dec 3 15:14 2007 -
zfspublic/batman used 83.7G -
zfspublic/batman available 829G -
zfspublic/batman referenced 83.7G -
zfspublic/batman compressratio 1.00x -
zfspublic/batman mounted yes -
zfspublic/batman quota none default
zfspublic/batman reservation none default
zfspublic/batman recordsize 128K default
zfspublic/batman mountpoint /s/public local
zfspublic/batman sharenfs off default
zfspublic/batman checksum on default
zfspublic/batman compression off default
zfspublic/batman atime on default
zfspublic/batman devices on default
zfspublic/batman exec on default
zfspublic/batman setuid on default
zfspublic/batman readonly off default
zfspublic/batman jailed on local
zfspublic/batman snapdir hidden default
zfspublic/batman aclmode groupmask default
zfspublic/batman aclinherit secure default
zfspublic/batman canmount on default
zfspublic/batman shareiscsi off default
zfspublic/batman xattr off temporary
zfspublic/batman copies 1 default
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