* Robert Watson <[EMAIL PROTECTED]> [070503 10:08] wrote: > > > > >Now process B is in an uninterruptable wait until the remote side drains > >the pipe. > > > >The same problem might happen (even easier to reproduce) when there are > >multiple readers. > > > >Of course this all depends on me missing something. > > > >Can you explain? > > You are entirely right -- I'm not sure how I missed the SB_NOINTR flag > semantics in sb_lock(), but apparently I did. I'm talking to Attilio right > now about adding an interruptible version of the sleeping exclusive lock > acquire and will follow up on this shortly. Thanks for pointing this out!
OK, please do your usual awesome benchmarking though so that this potential fix doesn't wind up being a performance pessimizing stopgap. I'm somewhat surprised that an attempt to move from sleep to cv based rendevous wasn't attempted first. -- - Alfred Perlstein _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
