On Sun, 23 Mar 2003, Craig Rodrigues wrote: > I notice that with a recent -current, that the vfs_aio.ko and sem.ko > modules do not seem to be built by default. In the past, this was not > the case. > > Is it mandatory now to specify the kernel options: > options VFS_AIO > options P1003_1B_SEMAPHORES > > in order for these modules to be built? I thought that the modules > would be built if no options were specified, and if those options were > specified, the modules would be built into the kernel.
Sometimes, kernel modules will not be built by default because they are unstable or experimental features that have not been adequately deployed or tested. I know our AIO implementation has improved in quality a great deal over the last couple of years, but last I checked the psem implementation had very little practical deployment experience or testing. Probably what it will take is someone owning the code for a bit to develop a proper test suite, chase down nasty interactions, etc. I know similar (although not identical) code exists in Darwin -- would be interesting to ask Apple if they have a test suite for their psem implementation. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects [EMAIL PROTECTED] Network Associates Laboratories To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
