Date: Mon, 07 Apr 2014 08:09:04 +0200 From: Frank Volf <frank@deze.org> To: pyunyh@gmail.com, Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-net@freebsd.org, marius@freebsd.org, yongari@freebsd.org Subject: Re: re0: watchdog timeout Message-ID: <53424100.7030103@deze.org> In-Reply-To: <20140407012241.GA3543@michelle.cdnetworks.com> References: <53418053.5020105@deze.org> <280407068.6916295.1396827428537.JavaMail.root@uoguelph.ca> <20140407012241.GA3543@michelle.cdnetworks.com>
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Yonghyeon PYUN schreef op 7-4-2014 3:22: > On Sun, Apr 06, 2014 at 07:37:08PM -0400, Rick Macklem wrote: >> Frank Volf wrote: >>> Hello, >>> >>> I'm experiencing watchdog timeouts with my Realtek interface card. >>> >>> I'm using a fairly new system (Shuttle DS47), running FreeBSD >>> 10-STABLE. >>> For this shuttle a patch has been recently committed to SVN to make >>> this >>> card work at all (revision *262391* >>> <http://svnweb.freebsd.org/base?view=revision&revision=262391>). >>> >>> The timeout is only experienced under heavy network load (the system >>> is >>> running a bacula backup server that backups to NFS connected >>> storage), >>> and typically large full backups trigger this. Normal traffic works >>> fine >>> (this system is e.g. also my firewall to the Internet). >>> >> Since you mention NFS, you could try disabling TSO on the interface >> and see if that helps. (I'm beginning to feel like a parrot saying this, >> but...) If you care about why it might help, read this email thread: >> http://docs.FreeBSD.org/cgi/mid.cgi?1850411724.1687820.1395621539316.JavaMail.root >> >> If it happens to help, please email again, since there are probably >> better ways to fix the problem than disabling TSO. >> > re(4) controllers support TSO but it was disabled long time > ago(r217832). > It's still allowed to enable TSO but users have to explicitly > enable it with ifconfig. If Frank didn't explicitly enable TSO on > the box, TSO may have nothing to do with watchdog timeout, I guess. I haven't explicitly enabled TSO, the only option that has been explicitly set is -vlanhwtag, here is the interface config: re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8208b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE> ether 80:ee:73:77:e9:ab nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active Regards, Frank
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