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I am trying to change the receiver's rwnd. The sequence of events is:
initialize the callback procedures table
getArgs(arvc, argv)
checkArgs()
SCTP_initLibrary()
sctpInstance=SCTP_registerInstance(....)
SCTP_getAssocDefaults(....) (this said myRwnd was set at 32767)
SCTP_setAssocDefaults(....) I attempted to set myRwnd to
65534--OK
98301--it started ok but then
partway thru core dumped
giving the following when looked
at with gdb:
This GDB was configured as "i386-redhat-linux"...
Core was generated by `scttcp -r -w 128000 -s 160.91.192.149'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libgmodule-1.2.so.0...done.
Loaded symbols for /usr/lib/libgmodule-1.2.so.0
Reading symbols from /usr/lib/libglib-1.2.so.0...done.
Loaded symbols for /usr/lib/libglib-1.2.so.0
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/i686/libc.so.6...done.
Loaded symbols for /lib/i686/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0 0x400ced89 in __libc_free (mem=0x40177f10) at malloc.c:3055
3055 malloc.c: No such file or directory.
in malloc.c

Normally there is a relationship between socket buffer size the receiver
window size...is there here? Can someone help me understand what is
happening beyond just the guess that it is attempting to get more memory
and can't? Is there something else I need to set that I am not setting?

Thanks.

Florence Fowler

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• [SCTP-Discussion] setting rwnd, Florence M Fowler, 12/21/2001
  • Re: [SCTP-Discussion] setting rwnd, Michael Tuexen, 12/21/2001
  • Re: [SCTP-Discussion] setting rwnd, Michael Tuexen, 12/29/2001

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