Re: cups slow on linux-2.6.24

Jeff Chua
2008-02-01T05:28:59Z

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On Jan 31, 2008 6:40 PM, Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> wrote:
> Hi Jeff,
>
> On Thu, 31 Jan 2008, Jeff Chua wrote:
>
> > On the bad run, I got the following message ...
> >
> > boston kernel: nf_ct_tcp: invalid packed ignored IN= OUT=
> > SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=8162
> > DF PROTO=TCP SPT=1016 DPT=515 SEQ=3834958843 ACK=0 WINDOW=32792
> > RES=0x00 SYN URGP=0 OPT (0204400C0402080A0000CC190000000001030307)
> > UID=0 GID=65534
>
> I can't find this packet in the last lo.bad pcap file. Could you dump the
> bad traffic and send it together with the generated log record?

I recaptured it again, and attached are the logs.

The first hang is at (from tcpdump)

13:15:42.330162 IP localhost.corp.fedex.com.1021 >
localhost.corp.fedex.com.printer: S 668990751:668990751(0) win 32792
<mss 16396,sackOK,timestamp 4294925792 0,nop,wscale 3>

Corresponding to dmesg ...

nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1
LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=41215 DF PROTO=TCP SPT=1021
DPT=515 SEQ=668990751 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT
(0204400C0402080AFFFF5DE00000000001030303) UID=0 GID=65534

Thanks,
Jeff.

[-- Attachment #2: dump1 --]
[-- Type: application/octet-stream, Size: 210129 bytes --]

[-- Attachment #3: dmesg1 --]
[-- Type: application/octet-stream, Size: 3420 bytes --]

nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=41215 DF PROTO=TCP SPT=1021 DPT=515 SEQ=668990751 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF5DE00000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1021 SEQ=666851408 ACK=668990752 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF5DE1FFFF5DE001030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=15031 DF PROTO=TCP SPT=1023 DPT=515 SEQ=715545168 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF60E70000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1023 SEQ=724077908 ACK=715545169 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF60F0FFFF60E701030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=29773 DF PROTO=TCP SPT=1022 DPT=515 SEQ=767236025 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF63F40000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1022 SEQ=765295327 ACK=767236026 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF63FDFFFF63F401030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=34901 DF PROTO=TCP SPT=1020 DPT=515 SEQ=820965201 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF67040000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1020 SEQ=823328258 ACK=820965202 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF6710FFFF670401030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=4642 DF PROTO=TCP SPT=1019 DPT=515 SEQ=856389685 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF6A170000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1019 SEQ=859392335 ACK=856389686 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF6A23FFFF6A1701030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=31307 DF PROTO=TCP SPT=1018 DPT=515 SEQ=916330342 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF6D2D0000000001030303) UID=0 GID=65534
nf_ct_tcp: killing out of sync session IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=515 DPT=1018 SEQ=919377640 ACK=916330343 WINDOW=32768 RES=0x00 ACK SYN URGP=0 OPT (0204400C0402080AFFFF6D2EFFFF6D2D01030303) UID=0 GID=0
nf_ct_tcp: invalid packed ignored IN= OUT= SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=55160 DF PROTO=TCP SPT=1017 DPT=515 SEQ=969385804 ACK=0 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080AFFFF70340000000001030303) UID=0 GID=65534