Kernelprobleme / bad checksum
Hallo,
vielleicht kennt sich einer von den Lesern mit diesem Kernel Problem
aus. Ich habe keine Ahnung davon, aber mein einer Server muckt.
uname -a
3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u3 (2016-01-17) x86_64
GNU/Linux
Der Server ist ein virtueller Server bei netcup.
kern.log Ausschnitt:
[ 597.210473] UDP: bad checksum. From 37.120.179.130:137 to
37.120.179.255:137 ulen 58
[ 1494.610929] perf interrupt took too long (2600 > 2500), lowering
kernel.perf_event_max_sample_rate to 50000
[ 3767.470063] perf interrupt took too long (5102 > 5000), lowering
kernel.perf_event_max_sample_rate to 25000
[ 5812.253684] UDP: bad checksum. From 37.120.179.130:137 to
37.120.179.255:137 ulen 58
[10587.776517] perf interrupt took too long (10045 > 10000), lowering
kernel.perf_event_max_sample_rate to 12500
[14853.470654] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[15455.761428] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[15456.516438] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[16720.350710] UDP: bad checksum. From 37.120.179.130:137 to
37.120.179.255:137 ulen 58
[17274.521442] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[20274.986468] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[22683.370845] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[25318.325025] UDP: bad checksum. From 37.120.176.50:137 to
37.120.179.255:137 ulen 58
[26435.377218] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[26899.427296] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[29122.512908] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[31519.787150] UDP: bad checksum. From 37.120.177.124:137 to
37.120.179.255:137 ulen 58
[36098.701945] perf interrupt took too long (20030 > 20000), lowering
kernel.perf_event_max_sample_rate to 6250
[39361.454287] UDP: bad checksum. From 37.120.179.130:137 to
37.120.179.255:137 ulen 58
[39377.724378] UDP: bad checksum. From 37.120.179.130:137 to
37.120.179.255:137 ulen 58
Problemkreis:
https://www.kernel.org/doc/Documentation/RCU/stallwarn.txt
Kann mir jemand einen Tip geben, was ich machen kann, damit der Server
nicht bald wieder stehen bleibt?
Vielen Dank
Manfred
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