It's probably got nothing to do with the hashing, look at the function names
on the back trace...

 1. /lib/libpthread.so.0 [0x4034d4f3]
 2. /lib/libc.so.6 [0x403b18b8]
 3. /usr/local/ntop/lib/ntop/plugins/nfsPlugin.so [0x40a4efbf]
 4. /usr/local/ntop/lib/libntop-2.1.so.51 [0x400ddba4]
 5. /usr/local/ntop/lib/libntop-2.1.so.51(processPacket+0x1f01) [0x400dfd89]
 6. /usr/lib/libpcap.so.0.6.2

processPacket -> nfsPlugin -> a library call (libc) -> pthread()

Probably a problem with locking/unlocking a thread when handling the nfs
stuff.

Best bet is to run under gdb and capture the details around the failure
(instructions are at http://snapshot.ntop.org), esp. the exact line of code
and variable values.


-----Burton


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Stefano Mattana
Sent: Monday, September 30, 2002 5:36 AM
To: [EMAIL PROTECTED]
Subject: [Ntop] Ntop hangs after extend hash size


Hi all,
First time on this list,

I' have compiled ntop v.2.1.51 ( precompiled rpm that i found crash
misteriously in little time) this version appear to play good for more time
against the precompiled, but after 2/3 days of good working the daemon
shutdown  after the last extending hash size of db to 4096.

Can anyone help me or give me any ideas about solve this problem.

This is the escape trace on messages after the shutdown

Tnx a lot
Stefano


Sep 27 14:27:37 volftp08 ntop[1043]: Extending hash size
[newSize=4096][deviceId=0]
Sep 29 15:44:11 volftp08 ntop[1043]: ntop caught signal 11
Sep 29 15:44:11 volftp08 ntop[1043]:    *****ntop error: Signal(11)
Sep 29 15:44:11 volftp08 ntop[1043]:       backtrace is:
Sep 29 15:44:11 volftp08 ntop[1043]:            1. /lib/libpthread.so.0
[0x4034d4f3]
Sep 29 15:44:11 volftp08 ntop[1043]:            2. /lib/libc.so.6
[0x403b18b8]
Sep 29 15:44:11 volftp08 ntop[1043]:            3.
/usr/local/ntop/lib/ntop/plugins/nfsPlugin.so [0x40a4efbf]
Sep 29 15:44:11 volftp08 ntop[1043]:            4.
/usr/local/ntop/lib/libntop-2.1.so.51 [0x400ddba4]
Sep 29 15:44:11 volftp08 ntop[1043]:            5.
/usr/local/ntop/lib/libntop-2.1.so.51(processPacket+0x1f01) [0x400dfd89]
Sep 29 15:44:11 volftp08 ntop[1043]:            6. /usr/lib/libpcap.so.0.6.2
[0x40322c9e]
Sep 29 15:44:11 volftp08 ntop[1043]:            7.
/usr/lib/libpcap.so.0.6.2(pcap_dispatch+0x36) [0x40323dea]
Sep 29 15:44:11 volftp08 ntop[1043]:            8.
/usr/local/ntop/lib/libntop-2.1.so.51(pcapDispatch+0x151) [0x400d8869]
Sep 29 15:44:11 volftp08 ntop[1043]:            9. /lib/libpthread.so.0
[0x40349f87]
Sep 29 15:44:11 volftp08 ntop[1043]:           10.
/lib/libc.so.6(__clone+0x3a) [0x40469c3a]
Sep 29 15:44:11 volftp08 ntop[1043]: Cleaning up...
Sep 29 15:44:11 volftp08 ntop[1043]: Waiting until threads terminate...
Sep 29 15:44:14 volftp08 ntop[1043]: Freeing hash host instances... (1 d
Sep 29 15:47:44 volftp08 ntop[1043]: Freeing device eth0 (idx=0)...
Sep 29 15:47:44 volftp08 ntop[1043]: 465,024,627 packets received by filter
on
eth0
Sep 29 15:47:44 volftp08 ntop[1043]: 803,129 packets dropped by kernel
Sep 29 15:47:44 volftp08 ntop[1043]: 0 packets dropped by ntop
Sep 29 15:47:44 volftp08 ntop[1043]: ===================================
Sep 29 15:47:44 volftp08 ntop[1043]:         ntop is shutdown...
Sep 29 15:47:44 volftp08 ntop[1043]: ===================================

--
        Stefano Mattana mailto:[EMAIL PROTECTED]
        Mondadori.com SpA
        System & Network Management
-------------------------------------------------------
Key fingerprint = 3946 C21C 0B9A 19F0 4DB1  A2D2 5C6F 26D1 BA73 613F


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