I've read the comments in /usr/src/sys/kern/sys_pipe.c, but couldn't see anything in there ... I'm up to 32M (as set through /boot/loader.conf) and am still hitting the max after a period of time (latest was 7 hours) ... Figuring that the last time I checked, I was using something like 7000 pipes, @ 16k each, I should be setting it closer to 128M, and that is assuming no 64k pipes ... So, is there an 'upper max' that it won't allow me to set it past? Thanks ... ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email . scrappy@hub.org MSN . scrappy@hub.org Yahoo . yscrappy Skype: hub.org ICQ . 7615664
Marc G. Fournier wrote: [ ... ]> Figuring that the last time I checked, I was using something like 7000 > pipes, @ 16k each, I should be setting it closer to 128M, and that is > assuming no 64k pipes ... > > So, is there an 'upper max' that it won't allow me to set it past?Read "man tuning" about KVA. -- -Chuck
Raphael H. Becker
2006-Aug-28 11:36 UTC
RAID Controller problems (was: Re: kern.ipc.maxpipekva ...)
Hi,
I've also seen this "kernel: kern.maxpipekva exceeded, please see
tuning(7)" on the console of our Dell PE6650, which (again) had lost its
amr (LSI RAID/Perc). This machine isn't under load but runs rsync every 5
minutes.
amr0@pci3:1:0: class=0x010400 card=0x05181028 chip=0x19601000 rev=0x01 hdr=0x00
vendor = 'LSI Logic (Was: Symbios Logic, NCR)'
device = 'MegaRAID'
class = mass storage
subclass = RAID
# uname -srm
FreeBSD 6.1-RELEASE-p3 i386
... with just this KERNCONF:
include GENERIC
ident PE6650
options SMP
options COMPAT_FREEBSD4
options COMPAT_FREEBSD5
The amr seems more stable since "Scott's Mega Update" (see:
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/amr/amr_cam.c?rev=1.15.2.1&content-type=text/x-cvsweb-markup&only_with_tag=RELENG_6_1_BP
)
but probably under high load or after a while it still fails (no disk
access possible, no messages).
Has anyone else running a Dell PE6650 with this LSI RAID?
Anyone else got this errors?
Regards
Raphael Becker
On Thu, Jun 22, 2006 at 12:17:12PM -0300, Marc G. Fournier
wrote:>
> I've read the comments in /usr/src/sys/kern/sys_pipe.c, but
couldn't see
> anything in there ... I'm up to 32M (as set through /boot/loader.conf)
and
> am still hitting the max after a period of time (latest was 7 hours) ...
>
> Figuring that the last time I checked, I was using something like 7000
> pipes, @ 16k each, I should be setting it closer to 128M, and that is
> assuming no 64k pipes ...
>
> So, is there an 'upper max' that it won't allow me to set it
past?
>
> Thanks ...
>
> ----
> Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
> Email . scrappy@hub.org MSN . scrappy@hub.org
> Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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