Date: Tue, 08 Apr 2008 20:19:51 +0100 From: Vince <jhary@unsane.co.uk> To: Jisakiel <jisakiel@yahoo.es> Cc: freebsd-stable@freebsd.org Subject: Re: ZFS deadlock Message-ID: <47FBC557.5010703@unsane.co.uk> In-Reply-To: <864348.32703.qm@web28508.mail.ukl.yahoo.com> References: <864348.32703.qm@web28508.mail.ukl.yahoo.com>
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It depends a lot on your workload I'd say.
for me its pretty stable on a amd64 7-STABLE box that just does a little
light mail and web and package building.
for others not so much.
info on my system below if anyones interested.
Vince
(20:12:28 </usr/home/jhary>) 0 $ more /boot/loader.conf
geom_mirror_load=YES
vm.kmem_size="768M"
vm.kmem_size_max="768M"
snd_emu10k1_load=YES
jhary@crab
(20:12:39 </usr/home/jhary>) 0 $ uptime
8:12PM up 13 days, 19:16, 5 users, load averages: 1.21, 0.86, 0.44
jhary@crab
(20:12:50 </usr/home/jhary>) 0 $ zfs list
NAME USED AVAIL REFER MOUNTPOINT
data 164G 64.8G 18K /data
data/usr 163G 64.8G 163G /usr
data/var 306M 64.8G 306M /var
jhary@crab
(20:13:00 </usr/home/jhary>) 0 $ zpool status
pool: data
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
mirror ONLINE 0 0 0
ad6s2 ONLINE 0 0 0
ad4s2 ONLINE 0 0 0
errors: No known data errors
relevent bits from dmesg:
CPU: AMD Opteron(tm) Processor 242 (1594.18-MHz K8-class CPU)
Origin = "AuthenticAMD" Id = 0xf5a Stepping = 10
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
usable memory = 3210489856 (3061 MB)
avail memory = 3103461376 (2959 MB)
ACPI APIC Table: <A M I OEMAPIC >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
Jisakiel wrote:
> ¿So no chances of ZFS stable on FBSD7? I was actually considering debian over freebsd on a dual AMD64, but if there are no settings that will make it stable... Nevertheless I'd be willing to help debugging ZFS on that machine (Dell T105) as soon as I receive it in a couple of weeks, as I'm in no rush to getting it into production (just tell me what to do ;) ).
>
> ----- Mensaje original ----
> De: Spike Ilacqua <spike@indra.com>
> Para: Ender <ender@enderzone.com>
> CC: freebsd-fs@freebsd.org; freebsd-stable@freebsd.org; Johan Ström <johan@headweb.com>
> Enviado: martes, 8 de abril, 2008 18:13:32
> Asunto: Re: ZFS deadlock
>
>> Depending on your work load you are just buying more time, so
>> "reasonable" is a matter of perspective. :( I didn't see if you said
>> you are on 32bit or 64bit? Keep in mind the kmem max is 1.5-2G on amd64
>> regardless of how much memory you have. If 512M arcsize crashes too soon
>> for your tastes you can always lower it down to 256M, or 128M, etc.
>
> I tried for several weeks to get ZFS stable on a 64bit system with a
> 1.5G kernel. The best uptime I ever got was 72 hours, the worst was 2,
> the average about 24. Interestingly, most of the hangs were at off
> hours, when the system was lightly loaded, had lots of free memory, etc.
> That suggests to me a slow leak of some sort.
>
> Anyway, ZFS is not ready for production. Some people may get lucky, but
> you can't count on it.
>
> Spike
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