rx fifo overflow errors
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We are running 2.2.5 on a Pentium dual core machine.
Since a last few weeks, the following fifo overflow errors are occurring which cause delay and placket loss.
I have changed the cable 3 times and also changed the switch to which it connects. The switch shows negligible errors on the uplink Rx about 10e-7.
The errors continue irrespective of the load on the system i.e there are errors at off peak time also. There a script running monitoring the hour by hour error rate, will update here if peak time error are higher or not.
Thinking of upgrading to the latest release. The interface is the onboard one and one other PCIe interface is used on LAN side. There are no other slots on the mobo.
There are also few (3613 vs 45376) Tx error on the LAN interface. The switch on the Rx side of that shows no errors.
The machines is used as captive portal for lower side of 100s of users. Memory is at max 30%, CPU is at 50-70 mostly with jumps to full at times. Load average sometimes goes to max 2.x 1.9 1.6.
How do we dig deeper?
Thanks
dev.alc.0.%desc: Atheros AR8151 v2.0 PCIe Gigabit Ethernet dev.alc.0.%driver: alc dev.alc.0.%location: slot=0 function=0 dev.alc.0.%pnpinfo: vendor=0x1969 device=0x1083 subvendor=0x1043 subdevice=0x847e class=0x020000 dev.alc.0.%parent: pci1 dev.alc.0.int_rx_mod: 100 dev.alc.0.int_tx_mod: 1000 dev.alc.0.process_limit: 64 dev.alc.0.stats.rx.good_frames: 3664566744 dev.alc.0.stats.rx.good_bcast_frames: 0 dev.alc.0.stats.rx.good_mcast_frames: 0 dev.alc.0.stats.rx.pause_frames: 0 dev.alc.0.stats.rx.control_frames: 9380 dev.alc.0.stats.rx.crc_errs: 2 dev.alc.0.stats.rx.len_errs: 0 dev.alc.0.stats.rx.good_octets: 3989673913677 dev.alc.0.stats.rx.good_bcast_octets: 0 dev.alc.0.stats.rx.good_mcast_octets: 0 dev.alc.0.stats.rx.runts: 0 dev.alc.0.stats.rx.fragments: 0 dev.alc.0.stats.rx.frames_64: 190486856 dev.alc.0.stats.rx.frames_65_127: 610033952 dev.alc.0.stats.rx.frames_128_255: 88456269 dev.alc.0.stats.rx.frames_256_511: 65111845 dev.alc.0.stats.rx.frames_512_1023: 59742321 dev.alc.0.stats.rx.frames_1024_1518: 2650964882 dev.alc.0.stats.rx.frames_1519_max: 6 dev.alc.0.stats.rx.trunc_errs: 0 dev.alc.0.stats.rx.fifo_oflows: 45376 dev.alc.0.stats.rx.rrs_errs: 0 dev.alc.0.stats.rx.align_errs: 0 dev.alc.0.stats.rx.filtered: 174629 dev.alc.0.stats.tx.good_frames: 2512567223 dev.alc.0.stats.tx.good_bcast_frames: 336 dev.alc.0.stats.tx.good_mcast_frames: 10 dev.alc.0.stats.tx.pause_frames: 0 dev.alc.0.stats.tx.control_frames: 0 dev.alc.0.stats.tx.excess_defers: 0 dev.alc.0.stats.tx.defers: 0 dev.alc.0.stats.tx.good_octets: 1162371012533 dev.alc.0.stats.tx.good_bcast_octets: 976 dev.alc.0.stats.tx.good_mcast_octets: 0 dev.alc.0.stats.tx.frames_64: 362620042 dev.alc.0.stats.tx.frames_65_127: 1117661924 dev.alc.0.stats.tx.frames_128_255: 75998451 dev.alc.0.stats.tx.frames_256_511: 53448469 dev.alc.0.stats.tx.frames_512_1023: 318281056 dev.alc.0.stats.tx.frames_1024_1518: 584557281 dev.alc.0.stats.tx.frames_1519_max: 0 dev.alc.0.stats.tx.single_colls: 0 dev.alc.0.stats.tx.multi_colls: 0 dev.alc.0.stats.tx.late_colls: 0 dev.alc.0.stats.tx.excess_colls: 0 dev.alc.0.stats.tx.abort: 0 dev.alc.0.stats.tx.underruns: 0 dev.alc.0.stats.tx.desc_underruns: 0 dev.alc.0.stats.tx.len_errs: 0 dev.alc.0.stats.tx.trunc_errs: 20160 -
It is probably time to consider more current hardware.
It is definitely time to consider upgrading to more current software.
