ndt-users list created

[Tom Throckmorton <>]

On May 07 16:58, Clint Simmons wrote:
> This is one I have never seen before...
> 
>  
> 
> Kernel 2.6.32-web100
> 
> ndt-3.6.2b
> 
>  
> 
> >> 
> 
> ** Starting test 1 of 1 **
> 
> Connecting to 'nms.myappro.com' [nms.myappro.com/172.23.240.4] to run
> test
> 
> Connected to: nms.myappro.com--  Using IPv4 address
> 
> Checking for Middleboxes  . . . . . . . . . . . . . . . . . .  Done.
> 
> Checking for firewalls . . . . . . . . . . . . . . . . . . .  Done.
> 
> running 10s outbound test (client-to-server [C2S]) . . . . . 93.91Mb/s
> 
> running 10s inbound test (server-to-client [S2C]) . . . . . . 91.84Mb/s
> 
> Server unable to determine bottleneck link type.
> 
> << 
> 
>  
> 
>  
> 
> libweb100: warning: accessing depricated variable AckPktsIn
> 
> libweb100: warning: accessing depricated variable AckPktsOut
> 
> *** buffer overflow detected ***: /usr/local/sbin/web100srv terminated
> 
> ======= Backtrace: =========

Looks like you've compiled w/ stack protection enabled (-fstack-protector is
being passed to your compiler, likely via CPPFLAGS) and it dutifully caught
some misbehaving code.  I believe this is the default compiler behavior on 
many
distros now - see https://wiki.ubuntu.com/CompilerFlags for the specifics on 
Ubuntu.

I don't recall that being an issue for earlier releases of NDT, but I haven't
yet compiled 3.6.2b myself, and not on Ubuntu.  I _have_ encounterd something
similar with web100_userland, but iirc, that problem was limited only to the
gutil build, which shouldn't impact/hinder web100srv.

You could try re-compiling w/ more permissive flags - I will try this version
myself and see how it builds/runs.

Cheers,

-tt

 
> /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb779ced8]
> 
> /lib/tls/i686/cmov/libc.so.6[0xb779bf10]
> 
> /lib/tls/i686/cmov/libc.so.6[0xb779b41e]
> 
> /usr/local/sbin/web100srv[0x805d54c]
> 
> /usr/local/sbin/web100srv[0x804d695]
> 
> /usr/local/sbin/web100srv[0x80515cd]
> 
> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xb76d2b56]
> 
> /usr/local/sbin/web100srv[0x804ab51]
> 
> ======= Memory map: ========
> 
> 08048000-0806e000 r-xp 00000000 48:01 3882
> /usr/local/sbin/web100srv
> 
> 0806e000-0806f000 r--p 00025000 48:01 3882
> /usr/local/sbin/web100srv
> 
> 0806f000-08070000 rw-p 00026000 48:01 3882
> /usr/local/sbin/web100srv
> 
> 08070000-08084000 rw-p 00000000 00:00 0
> 
> 0939b000-093c4000 rw-p 00000000 00:00 0          [heap]
> 
> b6663000-b667f000 r-xp 00000000 48:01 635        /lib/libgcc_s.so.1
> 
> b667f000-b6680000 r--p 0001b000 48:01 635        /lib/libgcc_s.so.1
> 
> b6680000-b6681000 rw-p 0001c000 48:01 635        /lib/libgcc_s.so.1
> 
> b6689000-b668a000 ---p 00000000 00:00 0
> 
> b668a000-b6e8a000 rw-p 00000000 00:00 0
> 
> b6e8a000-b6e8b000 ---p 00000000 00:00 0
> 
> b6e8b000-b768b000 rw-p 00000000 00:00 0
> 
> b768b000-b768d000 r-xp 00000000 48:01 4112       /lib/libnss_mdns4.so.2
> 
> b768d000-b768e000 r--p 00001000 48:01 4112       /lib/libnss_mdns4.so.2
> 
> b768e000-b768f000 rw-p 00002000 48:01 4112       /lib/libnss_mdns4.so.2
> 
> b768f000-b769f000 r-xp 00000000 48:01 629
> /lib/tls/i686/cmov/libresolv-2.10.1.so
> 
> b769f000-b76a0000 r--p 00010000 48:01 629
> /lib/tls/i686/cmov/libresolv-2.10.1.so
> 
> b76a0000-b76a1000 rw-p 00011000 48:01 629
> /lib/tls/i686/cmov/libresolv-2.10.1.so
> 
> b76a1000-b76a3000 rw-p 00000000 00:00 0
> 
> b76a3000-b76a8000 r-xp 00000000 48:01 326
> /lib/tls/i686/cmov/libnss_dns-2.10.1.so
> 
> b76a8000-b76a9000 r--p 00004000 48:01 326
> /lib/tls/i686/cmov/libnss_dns-2.10.1.so
> 
> b76a9000-b76aa000 rw-p 00005000 48:01 326
> /lib/tls/i686/cmov/libnss_dns-2.10.1.so
> 
> b76aa000-b76ac000 r-xp 00000000 48:01 4113
> /lib/libnss_mdns4_minimal.so.2
> 
> b76ac000-b76ad000 r--p 00001000 48:01 4113
> /lib/libnss_mdns4_minimal.so.2
> 
> b76ad000-b76ae000 rw-p 00002000 48:01 4113
> /lib/libnss_mdns4_minimal.so.2
> 
> b76ae000-b76b8000 r-xp 00000000 48:01 599
> /lib/tls/i686/cmov/libnss_files-2.10.1.so
> 
> b76b8000-b76b9000 r--p 00009000 48:01 599
> /lib/tls/i686/cmov/libnss_files-2.10.1.so
> 
> b76b9000-b76ba000 rw-p 0000a000 48:01 599
> /lib/tls/i686/cmov/libnss_files-2.10.1.so
> 
> b76ba000-b76bc000 rw-p 00000000 00:00 0
> 
> b76bc000-b77fa000 r-xp 00000000 48:01 232
> /lib/tls/i686/cmov/libc-2.10.1.so
> 
> b77fa000-b77fb000 ---p 0013e000 48:01 232
> /lib/tls/i686/cmov/libc-2.10.1.so
> 
> b77fb000-b77fd000 r--p 0013e000 48:01 232
> /lib/tls/i686/cmov/libc-2.10.1.so
> 
> b77fd000-b77fe000 rw-p 00140000 48:01 232
> /lib/tls/i686/cmov/libc-2.10.1.so
> 
> b77fe000-b7801000 rw-p 00000000 00:00 0
> 
> b7801000-b7815000 r-xp 00000000 48:01 591        /lib/libz.so.1.2.3.3
> 
> b7815000-b7816000 r--p 00013000 48:01 591        /lib/libz.so.1.2.3.3
> 
> b7816000-b7817000 rw-p 00014000 48:01 591        /lib/libz.so.1.2.3.3
> 
> b7817000-b782c000 r-xp 00000000 48:01 628
> /lib/tls/i686/cmov/libpthread-2.10.1.so
> 
> b782c000-b782d000 r--p 00014000 48:01 628
> /lib/tls/i686/cmov/libpthread-2.10.1.so
> 
> b782d000-b782e000 rw-p 00015000 48:01 628
> /lib/tls/i686/cmov/libpthread-2.10.1.so
> 
> b782e000-b7830000 rw-p 00000000 00:00 0
> 
> b7830000-b7854000 r-xp 00000000 48:01 287
> /lib/tls/i686/cmov/libm-2.10.1.so
> 
> b7854000-b7855000 r--p 00023000 48:01 287
> /lib/tls/i686/cmov/libm-2.10.1.so
> 
> b7855000-b7856000 rw-p 00024000 48:01 287
> /lib/tls/i686/cmov/libm-2.10.1.so
> 
> b7856000-b7887000 r-xp 00000000 48:01 143756
> /usr/lib/libpcap.so.1.0.0
> 
> b7887000-b7888000 r--p 00031000 48:01 143756
> /usr/lib/libpcap.so.1.0.0
> 
> b7888000-b7889000 rw-p 00032000 48:01 143756
> /usr/lib/libpcap.so.1.0.0
> 
> b788f000-b7891000 rw-p 00000000 00:00 0
> 
> b7891000-b7896000 r-xp 00000000 48:01 3954
> /usr/local/lib/libweb100.so.0.3.2
> 
> b7896000-b7897000 r--p 00004000 48:01 3954
> /usr/local/lib/libweb100.so.0.3.2
> 
> b7897000-b7898000 rw-p 00005000 48:01 3954
> /usr/local/lib/libweb100.so.0.3.2
> 
> b7898000-b789a000 rw-p 00000000 00:00 0
> 
> b789a000-b789b000 r-xp 00000000 00:00 0          [vdso]
> 
> b789b000-b78b6000 r-xp 00000000 48:01 176        /lib/ld-2.10.1.so
> 
> b78b6000-b78b7000 r--p 0001a000 48:01 176        /lib/ld-2.10.1.so
> 
> b78b7000-b78b8000 rw-p 0001b000 48:01 176        /lib/ld-2.10.1.so
> 
> bfb81000-bfb96000 rw-p 00000000 00:00 0          [stack]
> 
>  
> 
>  
> 
> Thanks,
> 
> Clint Simmons
> 
>  
> 

-- 
Tom Throckmorton
MCNC - Advanced Services Development
3021 Cornwallis Road
Research Triangle Park, NC 27709
919.248.1448

"Connecting North Carolina's future today"