On Sun, 29 Jul 2012, David Xu wrote:
I have just written two quick-and-dirty test cases:
http://people.freebsd.org/~davidxu/patch/fifopipe/fifo_selectread.c
http://people.freebsd.org/~davidxu/patch/fifopipe/fifo_selectwrite.c
without patch for kernel code, a child process will print out "timeout".
I have updated patch, the patch fixed lost-notification bug for select():
http://people.freebsd.org/~davidxu/patch/fifopipe/kernel_pipe2.diff
So it was a bug in the new pipe code.
The test seemed to work under FreeBSD-~5.2 but was hard to configure.
It gave lots of abort traps. One was for the big buffer. This is too
big for -current too, and causes a mysterious abort trap with no core,
before exec. truss, gdb and bde were confused.
Bruce
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