Messages in this thread | | | Date | Thu, 31 Jan 2008 04:25:49 +0100 | From | Patrick McHardy <> | Subject | Re: cups slow on linux-2.6.24 |
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Jeff Chua wrote: > On Jan 31, 2008 10:41 AM, Patrick McHardy <kaber@trash.net> wrote: > > >> Thanks. In the dump we can see that connections reusing ports >> always have their first SYN dropped and retransmissted three >> seconds later. I'm not sure whats causing this yet, do you have >> any firewall rules that affect loopback traffic? >> > > No firewall. > > And the "lp" is just to print to a file@localhost. > > # lpadmin -p lp -i /etc/cups/interfaces/lp -v lpd://localhost/file -o > printer-error-policy=retry-job > # lpadmin -p file -i /etc/cups/interfaces/file -v file:/dev/null -o > printer-error-policy=retry-job > > Filter for lp is .. > cat $6 > > Filter for file is ... > cat $6 >/tmp/$$ >
Actually its probably the SYN/ACK that is dropped. Please try whether
modprobe ipt_LOG echo 255 >/proc/sys/net/netfilter/nf_conntrack_log_invalid
and then running the test again logs something to the ring buffer. You don't need to run the entire test, just until you get a log message from conntrack.
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