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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