Jesse Guardiani wrote:
On Tuesday 20 September 2005 6:11 pm, Graeme Wilford wrote:
I started noticing dropped packets on the RTL8139 eth device I have in
the same box as my PVR350 a few weeks ago (Shuttle ZEN, w/ 2.53GHz
Celeron D). I don't know if it was happening pre 0.3.8 but it's likely
it's been happening for a while.
I just switched the RTL driver from using PIO to MMIO (the default is
PIO in FC3 kernel) to see if it made any difference - but no. Still
dropping packets. I also tried preempt - but again, dropped packets.
This box is only running MythTV with a hauppauge PVR350 and serial IR
blaster. I have no usb or firewire devices attached:
[EMAIL PROTECTED] ~]# cat /proc/interrupts
CPU0
0: 2050381 IO-APIC-edge timer
1: 12 IO-APIC-edge i8042
8: 1 IO-APIC-edge rtc
12: 113 IO-APIC-edge i8042
14: 6589 IO-APIC-edge ide0
15: 35787 IO-APIC-edge ide1
169: 1 IO-APIC-level acpi
177: 987425 IO-APIC-level eth0, ATI IXP
193: 616179 IO-APIC-level ivtv0, ehci_hcd:usb1, ohci_hcd:usb2,
ohci_hcd:usb3
201: 2 IO-APIC-level ohci1394
NMI: 0
LOC: 2050485
ERR: 0
MIS: 0
I haven't seen ethernet device overruns in Linux for at least a decade...
I take it back. :) I just noticed some RX overruns on the box that
mounts it's
storage over NFS this morning:
eth0 Link encap:Ethernet HWaddr 00:0A:5E:1F:C9:3D
inet addr:192.168.88.100 Bcast:192.168.88.255 Mask:255.255.255.0
inet6 addr: fe80::20a:5eff:fe1f:c93d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:31528001 errors:0 dropped:0 overruns:894 frame:0
TX packets:19862283 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1710529888 (1.5 GiB) TX bytes:1092456499 (1.0 GiB)
Interrupt:17 Base address:0xdc00
$ uname -a
Linux mythtv 2.6.11.9-chw-2 #1 SMP Sat May 14 12:11:44 CDT 2005 i686
GNU/Linux
Motherboard is an Intel D815EEA2. Onboard NIC is disabled in BIOS,
and active NIC is a 3COM 3C509B. Box is running KnoppMyth R5A16
(debian) with my PVR 350.
I'm also seeing one TX overrun on my NFS server box . NIC is an intel 82555
onboard. Motherboard is an Intel L440GX+. This one is a very current Gentoo
machine with no PVR card:
eth0 Link encap:Ethernet HWaddr 00:D0:B7:89:1C:0B
inet addr:192.168.88.97 Bcast:192.168.88.255 Mask:255.255.255.0
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:209064796 errors:0 dropped:0 overruns:0 frame:0
TX packets:179731471 errors:0 dropped:0 overruns:1 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2417774626 (2305.7 Mb) TX bytes:979492881 (934.1 Mb)
Interrupt:17
# uname -a
Linux bsd 2.6.13-gentoo #1 SMP Wed Aug 31 16:45:31 EDT 2005 i686 Pentium
III (Katmai) GenuineIntel GNU/Linux
Perhaps overruns are normal? I haven't noticed any performance problems,
other than the usual slowness when I'm maxing out my CPU building a DVD
image. I do that over NFS too, BTW. :)
I'll try to keep an eye on it and see if I can force the overrun counter to
increment.
--
Jesse Guardiani
Programmer/Sys Admin
[EMAIL PROTECTED]
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