On Wed, Aug 15, 2012 at 03:55:37AM -0700, Julian Elischer wrote: > On 8/15/12 3:29 AM, Julian Elischer wrote: > >On 8/14/12 6:07 AM, Konstantin Belousov wrote: > >>On Mon, Aug 13, 2012 at 06:28:46PM -0700, Julian Elischer wrote: > >>>On 8/13/12 3:33 PM, Dan Plassche wrote: > >>>>Konstantin, > >>>> > >>>>My apologies for any confusion. Your patch solved the problem on > >>>>8.2. Static and dynamic a.out binaries from 1.1.5.1 are working > >>>>normally in a chroot environment now. > >>>you will also have to change PID_MAX (spelling?) to be 60000 > >>>I have considered making this a tunable.. > >>>If you don't then the shell in the 1.1.5.1 environment will not be > >>>able to handle when a child > >>>get s a pid of > 16 bits and it will not be able to wait on it. so it > >>>will suspend for ever. > >>>teh result is that you can not complete a "make world". > >>> > >>>last time I tried a "make world" completed in about 1 minute and a > >>>kernel > >>>(1.1.5.1 GENERIC) compiled in way less than a minute. that was in 7.x > >>>days. > >>> > >>>I'd like to see results under 9.2 on a modern machine. > >>I committed today a batch of changes that allowed me to run most of > >>the binaries from 1.1.5.1 CD on real amd64 machine. > >> > >>Below is the pid_max tunable patch. I first thought that it cannot be > >>made a writeable sysctl, but then realized that there is nothing wrong > >>with having existing process pid be greater then pid_max, as far as it > >>is less then PID_MAX. > >> > >cool.. > >One thing that may be doing is to have pid_max either inherrited > >from a parent or jail or somehow > >influenced by the exec handler.. or (I know adrian suggested this > >too.) > > > >for example if you have an ancestor that is an old a.out image then > >maybe the system could do the right thing. > >it wouldn't be able to handle it's OWN pid maybe, but it could > >handle children. > >hmm maybe that isn't such a good idea... > > so kib: so when you have it all working, time a make world for us! > It seems that on single-threaded build done on Core i7 2600K with 8GB RAM, I get around 17 seconds for make world. This is with amd64 kernel @r239301 on SU+J UFS.
'Seems' because I cannot restart build, it dies whining about unaccessible obj. I noted that it created some obj/ directories in bin/cat etc. I have no much time now to look into this recreational stuff. >
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