Hi Octavian, --- Octavian Purdila <tavi@xxxxxxxxx> escreveu: > On Friday 08 September 2006 16:54, Mauricio Lin wrote: > > Hi all, > > > > I have some threads program and the /proc/pid/maps output show the > same > > stack (initial and final addresses) for all running threads of an > > application. > > The [stack] identifier is showed only for the first thread of a > process, and > its telling that the marked mapped memory region can auto-grow. That > means > that the kernel will initially create a small stack, and if the stack > > overflows the kernel will increase the stack size, within certain > limits (see > man getrlimit). > > The other threads stack is allocated dynamically, upon thread > creation, and > there is no marking to identify them in /proc/pid/maps. Humm, now the maps output is clear in terms of stacks for a multithreaded application. If other threads stack are dynamically allocated, are the size of these stacks computed or counted as the size of application heap area? BR, Mauricio Lin > > > According to the definition of threads, each thread should > > contain its own stack, but how Linux can identify it? > > > > See child_stack in man 2 clone. > > > Does thread in Linux contain its own stack? > > > > Since Linux kernel does not provide an explicit support for > threads, > > the stack can be a shared resource among threads, right? > > > > Linux does provide explicit support for threads for a long time. > Since 2.6 it > provides better POSIX compliance. For more details see man 7 > pthreads. > > tavi > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > > _______________________________________________________ Você quer respostas para suas perguntas? Ou você sabe muito e quer compartilhar seu conhecimento? Experimente o Yahoo! Respostas ! http://br.answers.yahoo.com/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
