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5bfb5d690f
Run idle threads with preempt disabled. Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()). How did it ever work before? Might fix the CPU hotplugging hang which Nigel Cunningham noted. We think the bug hits if the idle thread is preempted after checking need_resched() and before going to sleep, then the CPU offlined. After calling stop_machine_run, the CPU eventually returns from preemption and into the idle thread and goes to sleep. The CPU will continue executing previous idle and have no chance to call play_dead. By disabling preemption until we are ready to explicitly schedule, this bug is fixed and the idle threads generally become more robust. From: alexs <ashepard@u.washington.edu> PPC build fix From: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> MIPS build fix Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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README |
linux-2.6 for H8/300 README Yoshinori Sato <ysato@users.sourceforge.jp> * Supported CPU H8/300H and H8S * Supported Target 1.simulator of GDB require patches. 2.AE 3068/AE 3069 more information MICROTRONIQUE <http://www.microtronique.com/> Akizuki Denshi Tsusho Ltd. <http://www.akizuki.ne.jp> (Japanese Only) 3.H8MAX see http://ip-sol.jp/h8max/ (Japanese Only) 4.EDOSK2674 see http://www.eu.renesas.com/products/mpumcu/tool/edk/support/edosk2674.html http://www.azpower.com/H8-uClinux/ * Toolchain Version gcc-3.1 or higher and patch see arch/h8300/tools_patch/README binutils-2.12 or higher gdb-5.2 or higher The environment that can compile a h8300-elf binary is necessary. * Userland Develop environment used h8300-elf toolchains. see http://www.uclinux.org/pub/uClinux/ports/h8/ * A few words of thanks Porting to H8/300 serieses is support of Information-technology Promotion Agency, Japan. I thank support. and All developer/user.