[ECOS] RE: Thread error with large buffer

["Trenton D. Adams" <tadams at extremeeng dot com>]

Oops, looks like I'm going to have to look more carefully from now on.
I'm answering my own questions to damn much after posting to the list.

Anyhow, I changed the stack size of the thread.  I was thinking it had
something to do with stack size, but I didn't realize that threads had
their own stack.  Oops! :)

  > -----Original Message-----
  > From: Trenton D. Adams [mailto:tadams@extremeeng.com]
  > Sent: Thursday, July 19, 2001 4:18 PM
  > To: 'eCos mailing list'
  > Subject: Thread error with large buffer
  > 
  > I'm doing some network tests to test the things some of us were
talking
  > about before with send sending everything before returning.  I get
the
  > output below.
  > 
  > Transfer rate: 656912 bits/sec, 306 bytes/write.
  > TRACE: <4>[88]int main() This is the system-supplied default main()
  > TRACE: <4>[107]void cyg_libc_invoke_main() main() has returned with
code
  > 0. Calling exit()
  > TRACE: <4>[84]void exit() Calling fflush( NULL )
  > Start socket test
  > ASSERT FAIL: <2>[166]static void Cyg_Scheduler::unlock_inner() Bad
next
  > thread
  > 
  > 
  > Below is the thread.  It doesn't give the error above if the buffer
  > variable is 400.  Anyone have any ideas why this might be?  Surely a
  > static buffer of 4K is not un-reasonable?
  > net_test(cyg_addrword_t param)
  > {
  >     int s;
  >     int one = 1;
  >     int index;
  >     struct sockaddr_in addr;
  > 
  >     char buffer[4000];
  > 
  >     buffer[0] = '\0';
  > 
  >     diag_printf("Start socket test\n");
  >     init_all_network_interfaces();
  > 
  >     for (index = 0; index < 78; index++)
  >     {
  >         strcat (buffer,
  >             "Hello From eCos! Hello From eCos! Hello From eCos!\n");
  >     }
  > 
  > 
  >     s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  >     diag_printf("socket() = %d\n", s);
  > 
  >     diag_printf ("%x", inet_addr ("172.16.1.9"));
  >     addr.sin_addr.s_addr = inet_addr ("172.16.1.9");
  >     addr.sin_family = AF_INET;
  >     addr.sin_port = htons (1024);
  >     addr.sin_len = sizeof (addr);
  >     if (connect (s, &addr, sizeof (addr)) != 0)
  >     {
  >         diag_printf ("Error connecting to socket! - %d\n",
  >             errno);
  >         cyg_test_exit();
  >     }
  > 
  >     if (send (s, buffer, strlen (buffer), 0) != 0)
  >     {
  >         diag_printf ("Error sending to socket! - %d\n",
  >             errno);
  >         cyg_test_exit();
  >     }
  > 
  > 
  >     cyg_test_exit();
  > }
  > 
  > Trenton D. Adams
  > Embedded Developer
  > Windows Developer
  > Extreme Engineering Ltd.
  > Calgary Alberta.
  >