--- David Schultz <[EMAIL PROTECTED]> wrote: > Thus spake Varshavchick Alexander <[EMAIL PROTECTED]>: > > Well, now I made KVA space 2G, we'll see later on if it helps to > get rid > > of the sudden system halts, but for some reason a side-effect has > > appeared: pthread_create function returns EAGAIN error now, so I > had to > > recompile the software using it with linux threads to make it > working. > > With the old kernel these pieces worked without problems. Can it be > that > > somehow the enlarged KVA space messed up with the threads > mechanism? > > I'm not a pthreads expert, but my best guess is that your program > tried to create a thread with a stack address that was too high. > Remember that with a 2 GB KVA, user processes have only 2 GB to > play with instead of 3 GB, so attempting to mmap() a stack above > about 2 GB would cause pthread_create() to return EAGAIN. > > To Unsubscribe: send mail to [EMAIL PROTECTED] > with "unsubscribe freebsd-hackers" in the body of the message
I have a question: does the entire KVA *have* to be mapped into the each process's address space? How much of the KVA does a process need to communicate with the kernel effectively? ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
