Date: Thu, 06 May 2010 22:47:20 -0700 From: Zhenkai Zhu <zhenkai@cs.ucla.edu> To: freebsd-questions@freebsd.org, Eric Osterweil <eoster@cs.ucla.edu> Subject: Re: Syncache problem in FreeBSD 7.3-PRERELEASE Message-ID: <4BE3A968.6010808@cs.ucla.edu> In-Reply-To: <4BE3A7EB.7060804@cs.ucla.edu> References: <4BE3A7EB.7060804@cs.ucla.edu>
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Sorry for the spam. A correction: the message does NOT only appear when
I make my code. I copied several here:
May 6 21:50:06 raptors kernel: TCP: [131.179.96.24]:660 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
May 6 21:59:00 raptors ntpd[876]: kernel time sync status change 6001
May 6 22:06:48 raptors kernel: TCP: [131.179.96.24]:669 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
May 6 22:10:26 raptors kernel: TCP: [131.179.96.24]:743 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
May 6 22:11:48 raptors kernel: TCP: [131.179.96.24]:611 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
May 6 22:26:03 raptors kernel: TCP: [131.179.96.24]:665 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
May 6 22:35:46 raptors kernel: TCP: [131.179.96.24]:708 to
[131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment failed
SYNCOOKIE authentication, segment rejected (probably spoofed)
Zhenkai
On 05/06/2010 10:40 PM, Zhenkai Zhu wrote:
> Hi,
>
> I'm experiencing some problem of syncache (probably).
>
> We have a NFS server which exports everyone's home directory, and I'm
> developing my Qualnet code on another machine (NFS client) under my
> home directory. However, when I make my code, linking takes extremely
> long time (it takes more than 5 minutes while on my laptop it only
> takes 15 seconds). I examed the /var/log/messages on the NFS server
> and it was like this:
>
> May 6 19:51:49 raptors kernel: TCP: [131.179.96.24]:985 to
> [131.179.96.25]:2049 tcpflags 0x10<ACK>; syncache_expand: Segment
> failed SYNCOOKIE authentication, segment rejected (probably spoofed)
>
> The above message appears every time I make my code ( and only when I
> make my code). I turned on linux binary compatiblity on the NFS client
> because Qualnet needs to be run in that mode.
>
> Here are some more details: both the NFS server and client are amd64
> machines. The server has 8 cpus and the client has 16 cpus.
>
> Any one can help me out? Thanks!!!
>
> Zhenkai
>
> For detail info for the NFS server is as following:
>
> kern.ostype: FreeBSD
> kern.osrelease: 7.3-PRERELEASE
> kern.osrevision: 199506
> kern.version: FreeBSD 7.3-PRERELEASE #0: Tue Feb 9 12:59:50 PST 2010
> root@raptors.cs.ucla.edu:/usr/obj/usr/src/sys/RAPTORS
>
> kern.maxvnodes: 100000
> kern.maxproc: 6164
> kern.maxfiles: 12328
> kern.argmax: 262144
> kern.securelevel: 2
> kern.hostname: raptors.cs.ucla.edu
> kern.hostid: 2180312168
> kern.clockrate: { hz = 1000, tick = 1000, profhz = 2000, stathz = 133 }
> kern.posix1version: 200112
> kern.ngroups: 16
> kern.job_control: 1
> kern.saved_ids: 0
> kern.boottime: { sec = 1267039765, usec = 441091 } Wed Feb 24 11:29:25
> 2010
> kern.domainname: uclairlnew
> kern.osreldate: 702106
> kern.bootfile: /boot/kernel/kernel
> kern.maxfilesperproc: 11095
> "~/info" 2185L, 121063C
> kern.bootfile: /boot/kernel/kernel
> kern.maxfilesperproc: 11095
> kern.maxprocperuid: 5547
> kern.ipc.maxsockbuf: 262144
> kern.ipc.sockbuf_waste_factor: 8
> kern.ipc.somaxconn: 128
> kern.ipc.max_linkhdr: 16
> kern.ipc.max_protohdr: 60
> kern.ipc.max_hdr: 76
> kern.ipc.max_datalen: 100
> kern.ipc.nmbjumbo16: 3200
> kern.ipc.nmbjumbo9: 6400
> kern.ipc.nmbjumbop: 12800
> kern.ipc.nmbclusters: 25600
> kern.ipc.piperesizeallowed: 1
> kern.ipc.piperesizefail: 0
> kern.ipc.pipeallocfail: 0
> kern.ipc.pipefragretry: 0
> kern.ipc.pipekva: 16384
> kern.ipc.maxpipekva: 103321600
> kern.ipc.msgseg: 2048
> kern.ipc.msgssz: 8
> kern.ipc.msgtql: 40
>
> kern.ipc.msgssz: 8
> kern.ipc.msgtql: 40
> kern.ipc.msgmnb: 2048
> kern.ipc.msgmni: 40
> kern.ipc.msgmax: 16384
> kern.ipc.semaem: 16384
> kern.ipc.semvmx: 32767
> kern.ipc.semusz: 152
> kern.ipc.semume: 10
> kern.ipc.semopm: 100
> kern.ipc.semmsl: 60
> kern.ipc.semmnu: 30
> kern.ipc.semmns: 60
> kern.ipc.semmni: 10
> kern.ipc.semmap: 30
> kern.ipc.shm_allow_removed: 0
> kern.ipc.shm_use_phys: 0
> kern.ipc.shmall: 8192
> kern.ipc.shmseg: 128
> kern.ipc.shmmni: 192
> kern.ipc.shmmin: 1
> kern.ipc.shmmax: 33554432
> kern.ipc.maxsockets: 25600
>
> kern.ipc.shmmax: 33554432
> kern.ipc.maxsockets: 25600
> kern.ipc.numopensockets: 74
> kern.ipc.nsfbufsused: 0
> kern.ipc.nsfbufspeak: 0
> kern.ipc.nsfbufs: 0
> kern.dummy: 0
> kern.ps_strings: 140737488355296
> kern.usrstack: 140737488355328
> kern.logsigexit: 1
> kern.iov_max: 1024
> kern.hostuuid: 00020003-0004-0005-0006-000700080009
> kern.cam.cam_srch_hi: 0
> kern.cam.scsi_delay: 5000
> kern.cam.cd.retry_count: 4
> kern.cam.cd.changer.max_busy_seconds: 15
> kern.cam.cd.changer.min_busy_seconds: 5
> kern.cam.da.da_send_ordered: 1
> kern.cam.da.default_timeout: 60
> kern.cam.da.retry_count: 4
> kern.cam.da.0.minimum_cmd_size: 6
> kern.cam.da.1.minimum_cmd_size: 6
> kern.cam.da.2.minimum_cmd_size: 6
>
> kern.cam.da.1.minimum_cmd_size: 6
> kern.cam.da.2.minimum_cmd_size: 6
> kern.cam.da.3.minimum_cmd_size: 6
> kern.cam.da.4.minimum_cmd_size: 6
> kern.cam.da.5.minimum_cmd_size: 6
> kern.cam.da.6.minimum_cmd_size: 6
> kern.cam.da.7.minimum_cmd_size: 6
> kern.cam.da.8.minimum_cmd_size: 6
> kern.cam.da.9.minimum_cmd_size: 6
> kern.cam.da.10.minimum_cmd_size: 6
> kern.cam.da.11.minimum_cmd_size: 6
> kern.dcons.poll_hz: 100
> kern.disks: da11 da10 da9 da8 da7 da6 da5 da4 da3 da2 da1 da0
> kern.geom.collectstats: 1
> kern.geom.debugflags: 0
> kern.geom.label.debug: 0
> kern.elf64.fallback_brand: -1
> kern.init_shutdown_timeout: 120
> kern.init_path:
> /sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init:/stand/sysinstall
> kern.acct_suspended: 0
> kern.acct_configured: 0
> kern.acct_chkfreq: 15
>
> kern.acct_configured: 0
> kern.acct_chkfreq: 15
> kern.acct_resume: 4
> kern.acct_suspend: 2
>
>
>
>
>
>
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