July 14, 201114 yr Hi I have some problems with memory running v5.7b Streaming blu-ray to a PCH-C200 and when I load a new movie it suddenly starts to stutter. When I look at memory info. Memory Info (from /usr/bin/free) total used free shared buffers cached Mem: 4146316 4018876 127440 0 101492 3723728 -/+ buffers/cache: 193656 3952660 Swap: 0 0 0 Attach the syslog Rob syslog-2011-07-14.txt
July 15, 201114 yr No, you're not having memory problems. Your memory is not full. It is being used as buffers/cache (3952660 bytes used as one big huge freaking cache), likely with what you're streaming. Unused memory is wasted memory. Your stuttering issues lie elsewhere. Perhaps network latency or some PCH firmware bug, I read how some streaming devices have bad firmwares with gigabit networking and how putting a switch between it and the fileserver solved the issue.
July 15, 201114 yr I have some problems with memory running v5.7b Streaming blu-ray to a PCH-C200 and when I load a new movie it suddenly starts to stutter. I stream blu-ray to both a C200 and an A200 - I don't have problems with stuttering. Visit the PCH forums for advice on network configurations for the C200.
July 15, 201114 yr Yeah I have no problems with the PCH and bluray. The one time I did it was faulty wiring in the wall. If it is the C200, make sure it is set in 10/100. The GB doesn't always work. Josh
July 15, 201114 yr Author Hi Guys I use the PCH-200 a long time with a nas no problem at all so the problem lies in the unraid server. What is cached in the memory? I got dropped packets how do I troubleshoot this? Rob NIC info (from ethtool) Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: off Supports Wake-on: pumbag Wake-on: g Current message level: 0x00000001 (1) Link detected: yes NIC driver info (from ethtool -i) driver: e1000e version: 1.2.7-k2 firmware-version: 1.9-0 bus-info: 0000:02:00.0 Ethernet config info (from ifconfig) eth0 Link encap:Ethernet HWaddr 00:25:90:32:2a:f4 inet addr:192.168.2.40 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:219177072 errors:0 dropped:2171 overruns:0 frame:0 TX packets:129934295 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3289092643 (3.0 GiB) TX bytes:3120498277 (2.9 GiB) Interrupt:16 Memory:feae0000-feb00000
July 15, 201114 yr Author Hi Did an upgrade to 5.09b and problems gone for now. NIC info (from ethtool) Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: on Supports Wake-on: pumbag Wake-on: g Current message level: 0x00000001 (1) Link detected: yes NIC driver info (from ethtool -i) driver: e1000e version: 1.2.7-k2 firmware-version: 1.9-0 bus-info: 0000:02:00.0 Ethernet config info (from ifconfig) eth0 Link encap:Ethernet HWaddr 00:25:90:32:2a:f4 inet addr:192.168.2.40 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:574673 errors:0 dropped:0 overruns:0 frame:0 TX packets:287696 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:58578506 (55.8 MiB) TX bytes:27873202 (26.5 MiB) Interrupt:16 Memory:feae0000-feb00000 Memory Info (from /usr/bin/free) total used free shared buffers cached Mem: 4146276 285688 3860588 0 4324 216488 -/+ buffers/cache: 64876 4081400 Swap: 0 0 0 Rob
July 15, 201114 yr ...with 4GB of RAM, you do not have a memory problem in terms of resources. The syslog looks OK to me, besides the fact that your second NIC does not show. Did you disable it in the BIOS? That motherboard is a real workhorse. I have two of them running with uptimes for more than a year, each. I doubt that your problems will permanently disappear with a simple upgrade of the unRAID SW. Kernel and drivers have stayed the same. I've been testing v5.b7 with basically the same HW and have copied over some full arrays, during my other tests, producing very high workloads for days. ...my bet is, that there is some glitch in your network wiring.
July 15, 201114 yr Author Hi Ford Perfect I try different cables and options but still got dropped packets. I disabled the second nic with the jumper on board. Don't understand what's going on it work like hell and suddenly this stutter began. Copied 5TB from my nas to the unraid server everything was OK. As you can see after e fresh reboot I got no network error and after some time it begins. How can I trouble shoot this? Rob
July 15, 201114 yr So you're saying that the problem returned and 5.b9 did not solve it? ...can you test with a direct cable? no switch, static IPs between unRAID and media-client? ...swap NICs, disable the first and run the second on-board NIC only. ...can you test with a non-beta version (smaller array, max. 2TB drives) like v4.7 ??
July 15, 201114 yr Author Hi No it's not solved after upgrade. First try to use the 2e NIC. Don't think it's a cable switch problem nothing changed. Rob
July 15, 201114 yr It is not very clear.... was it working for en extended period then stopped working?
July 15, 201114 yr Author Hi NAS Yes that's correct. a few days ago I installed cache_dirs and then the trouble starts. It runs for 1 week with no troubles. Rob
July 15, 201114 yr Author Hi Used the second NIC on the MB and that didn't help NIC info (from ethtool) Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: off Supports Wake-on: pumbag Wake-on: g Current message level: 0x00000001 (1) Link detected: yes NIC driver info (from ethtool -i) driver: e1000e version: 1.2.7-k2 firmware-version: 1.9-0 bus-info: 0000:02:00.0 Ethernet config info (from ifconfig) eth0 Link encap:Ethernet HWaddr 00:25:90:32:2a:f5 inet addr:192.168.2.40 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3724903 errors:0 dropped:2843270 overruns:0 frame:0 TX packets:1670091 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:233267689 (222.4 MiB) TX bytes:2514272739 (2.3 GiB) Interrupt:17 Memory:feae0000-feb00000 Also the memory is into cached alot. Is that normal? (from /usr/bin/free) total used free shared buffers cached Mem: 4146276 4017188 129088 0 172128 3700664 -/+ buffers/cache: 144396 4001880 Swap: 0 0 0 Rob
July 15, 201114 yr Author Hi lionelhutz Did that but that didn't help I reboot everything and now it's running smooth but I stil have dropped packets. Rob
July 15, 201114 yr First try to use the 2e NIC. Don't think it's a cable switch problem nothing changed. Your NIC is also part of the components that you did not change If you accept a failure of the NIC - because you're going to test with a spare - I suggest that you consider failure of cables/switch or other parts of your setup as well. It makes sense that you rule out SW parts as well, so return to a config that previously has proved to be stable.
July 15, 201114 yr Also the memory is into cached alot. Is that normal? (from /usr/bin/free) total used free shared buffers cached Mem: 4146276 4017188 129088 0 172128 3700664 -/+ buffers/cache: 144396 4001880 Swap: 0 0 0 Yes, that is normal. I have the same setup with X7SPA-HF mobo and RAM. It looks like this: root@unRaid1:~# free total used free shared buffers cached Mem: 4146028 4029408 116620 0 341420 3560484 -/+ buffers/cache: 127504 4018524 Swap: 4192956 0 4192956 root@unRaid1:~# ...looks like this since the last reboot, 8 months ago
July 15, 201114 yr Cut out the switch/nic if you can to test, even if it has all been working fine in the past. I had a bad wire in the wall that worked fine to months and then started stuttering until I found out it was to do with the wiring in the wall. Josh
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