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Date:      Fri, 12 Sep 2003 09:54:28 +0300
From:      "Ventsislav Velkov" <veno@evrocom.bg>
To:        <freebsd-stable@freebsd.org>
Subject:   squid+wccp  No buffer space available
Message-ID:  <001201c378fa$b6488930$0232a8c0@beatle>

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Hi all,
I have a problem when trying to run my squid-cache with wccp.
The problem is that after running for 1 hour the network hangs .
I have in the message log "/kernel: xl0: watchdog timeout" and in the =
squid logs " No buffer space available"
The system is dual xeon @500Mhz with 2.5GB of RAM and 10x9.1GB SCSI,
FreeBSD 4.9-PRERELEASE from Thu Sep 11 and squid-2.5.STABLE3 build from =
ports.
My kernel:
maxusers        256
options         MSGMNB=3D16384    # max # of bytes in a queue
options         MSGMNI=3D512      # number of message queue identifiers
options         MSGSEG=3D8192     # number of message segments
options         MSGSSZ=3D128      # size of a message segment
options         MSGTQL=3D512      # max messages in system
options         SHMSEG=3D16
options         SHMMNI=3D32
options         SHMMAX=3D2097152
options         SHMALL=3D4096

options         MAXDSIZ=3D"(2048UL*1024*1024)"
options         MAXSSIZ=3D"(2048UL*1024*1024)"
options         DFLDSIZ=3D"(2048UL*1024*1024)"

options         NMBCLUSTERS=3D65535
options         NBUF=3D16384

When I am port-forwarding the traffic to the squid without wccp the =
machine is stable and works fine.
The problem appears after setting squid with wccp and bringing gre =
interfaces.
I've tried different settings but with no effect. The squid passes =
arround 20 mbits/s=20
with over 100 req/s.

Will appreciate all advices.

Best regards,

----------------------------------
Ventsislav Velkov
Network Administrator
Evrocom.Net
+359 32 607321



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