Re: Disaster under heavy network load on 2.4.x
Michal Margula <[EMAIL PROTECTED]> writes:
> Hello!
>
> My friend told me to noticed you about problems I had with 2.4.x line of
> kernels. I started up from 2.4.3. Under heavy load I was getting
> messages from telnet, ping, nmap "No buffer space available". Strace
> told me it was error marked as ENOBUFS.
You probably need to increase various sysctls to handle your load.
E.g. /proc/sys/net/ipv4/tcp_mem, net/core/[rw]mem_{max,default}, neigh/
defaults/gc_thresh* (for the ARP table)
>
> First thought was it was my fault. I asked many people and nobody could
> help me. So I tried 2.4.5. It was a disaster also (should I mention few
> oopses?:>).
When you have oopses run them through ksymoops and send them to the list.
-Andi
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Re: Disaster under heavy network load on 2.4.x
It looks like you don't have 'lo' configured, i.e. your 127.0.0.1 interface. David Michal Margula wrote: >Hello! > >My friend told me to noticed you about problems I had with 2.4.x line of >kernels. I started up from 2.4.3. Under heavy load I was getting >messages from telnet, ping, nmap "No buffer space available". Strace >told me it was error marked as ENOBUFS. > >First thought was it was my fault. I asked many people and nobody could >help me. So I tried 2.4.5. It was a disaster also (should I mention few >oopses?:>). > >Second thought was to try 2.2.19 and it was good choice. Now there are >almost no messags like those above. Only thing that still happens is >"Neihgbour table overflow". > >Some data about my Linux box: > >2 x PIII 800 MHz/1024 MB; 2 x Intel EExpres 100; 3 x 3com 3c900B-Combo. >Summarizing all traffic about 5mbit at the moment. > ># arp -an | wc -l > 1018 > >Any more info needed? > >PS. It would be nice to be CCed with replies, beacause I am not >subscribed to LKML. > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Disaster under heavy network load on 2.4.x
On Mon, 11 Jun 2001, Michal Margula wrote: > Hello! > > My friend told me to noticed you about problems I had with 2.4.x line of > kernels. I started up from 2.4.3. Under heavy load I was getting > messages from telnet, ping, nmap "No buffer space available". Strace > told me it was error marked as ENOBUFS. > > First thought was it was my fault. I asked many people and nobody could > help me. So I tried 2.4.5. It was a disaster also (should I mention few > oopses?:>). Would you mind running those Oopses through ksymoops and send the backtraces to this list? /Martin -- Linux hackers are funny people: They count the time in patchlevels. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Disaster under heavy network load on 2.4.x
Hello! My friend told me to noticed you about problems I had with 2.4.x line of kernels. I started up from 2.4.3. Under heavy load I was getting messages from telnet, ping, nmap "No buffer space available". Strace told me it was error marked as ENOBUFS. First thought was it was my fault. I asked many people and nobody could help me. So I tried 2.4.5. It was a disaster also (should I mention few oopses?:>). Second thought was to try 2.2.19 and it was good choice. Now there are almost no messags like those above. Only thing that still happens is "Neihgbour table overflow". Some data about my Linux box: 2 x PIII 800 MHz/1024 MB; 2 x Intel EExpres 100; 3 x 3com 3c900B-Combo. Summarizing all traffic about 5mbit at the moment. # arp -an | wc -l 1018 Any more info needed? PS. It would be nice to be CCed with replies, beacause I am not subscribed to LKML. -- Michal Margula, [EMAIL PROTECTED], ICQ UIN 12267440, +) http://uznam.net.pl/~alchemyx/, Polish section of Linux Counter maintainer - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
