Re: pkg/38221 (bootstrap/bmake, devel/bmake are boken under solaris, sparc)

[Lloyd Parkes <Lloyd.Parkes%ird.govt.nz@localhost>]

Hi all,
I've been looking at this a bit more, in particular I ran truss on bmake failing 
and working. Any -j option causes the bmake test to fail. Running bmake without 
-j work just fine. Here are truss outputs from the failing test, first with two 
-j options that don't work and the last that did work.

http://homepages.paradise.net.nz/lparkes/dotwait-make-j1.bz2
http://homepages.paradise.net.nz/lparkes/dotwait-make-j4.bz2
http://homepages.paradise.net.nz/lparkes/dotwait-make-noj.bz2

In the failed -j1 output we can clearly see poll (pollsys) indicating EOF on fd 
8 by returning "rev=POLLIN" which is promptly ignored. fd 8 is clearly the fd 
where the results from the child appear.

I haven't finished digging (and I won't get a chance to do more today), but line 
2180 of job.c seems to say that the table of descriptors being polled should 
have two entries before and children we are reading data from. The truss logs 
clearly show only one. I have no idea where the other one has gone.

Cheers
--
Lloyd Parkes
Senior Systems Programmer
Open Systems
Ph: +64 4 890 2437