On Fri, 8 Jun 2001, Idea Receiver wrote:
> I dont know if this is cause by -current, I have not yet try on the
> -stable. However, I just write here, maybe someone can help me.. :P
> recently, I wrote a multithread network server for my work. what it does
> is to accept TCP connection from remote, and then put it into a new
> thread. I have wrote a simulation client to test this application i
> wrote. The simulation client will keep opening multi connection to the
> server, and keep sent a 8byte structure to server using loop and
> sleep(1) in between each write(). Also each of the thread created by
> server will simply reply a 8byte structure to its client (using
> write() again).
> When the client bring up "enough" (between 300-1000) connection to
> the server, then the server will core dump around 30mis to 1hr time.
> After I trace the problem, I found it is cause by write() with signal
> 11. then i use gdb to trace out the problem. follow is what i get from
> gdb:
>    Program received signal SIGSEGV, Segmentation fault.
>    0x28121637 in _fd_lock_backout () from /usr/lib/libc_r.so.4

You're not running -current if you're using libc_r.so.4.
We're at libc_r.so.5.  And fd locks have also been disabled
in -current.

Dan Eischen

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