BUG: select(2) doesn't wait with O_RDONLY pipe

Dave Broudy (shaggy@broudy.net)
Sun, 3 Oct 1999 21:06:30 -0400 (EDT)

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Hello,

I think there may be a bug when using select() to wait on a fd that was
open()'d with O_RDONLY and O_NONBLOCK. select waits on the pipe the first
time, but once data is writen to the pipe (echo stuff > pipe) and
subsequently read(), select() never waits again, and read() returns 0
until the program is killed. If I open() the pipe with O_RDWR, everything
works fine.

I've tried this on the following kernel versions:

2.2.12 x86 SMP: FAILED
2.0.31 x86: FAILED
2.2.10 SPARC: PASSED

The code that I produced this with is attached.

I'm not subscribed to linux-kernel, so please CC me if there is any
response to this.

Thanks,

Dave Broudy dave@broudy.net

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