1. 16 10月, 2008 9 次提交
  2. 19 8月, 2008 16 次提交
  3. 17 8月, 2008 5 次提交
  4. 16 8月, 2008 2 次提交
  5. 15 8月, 2008 5 次提交
  6. 14 8月, 2008 1 次提交
    • M
      x86: resurrect proper handling of maxcpus= kernel option (v2) · 23b49c19
      Max Krasnyansky 提交于
      For some reason we had two parsers registered for maxcpus=. One in init/main.c
      and another in arch/x86/smpboot.c. So I nuked the one in arch/x86.
      
      Also 64-bit kernels used to handle maxcpus= as documented in
      Documentation/cpu-hotplug.txt. CPUs with 'id > maxcpus' are initialized
      but not booted. 32-bit version for some reason ignored them even though
      all the infrastructure for booting them later is there.
      
      In the current mainline both 64 and 32 bit versions are broken.
      This patch restores the correct behaviour. I've tested x86_64 version on
      4- and 8- way Core2 and 2-way Opteron based machines. Various config
      combinations SMP, !SMP, CPU_HOTPLUG, !CPU_HOTPLUG.
      Booted with maxcpus=1 and maxcpus=4, etc. Everything is working as expected.
      
      So far we've received two reports from different people confirming that 32-bit
      version also works fine, both on dual core laptops and 16way server machines.
      
      [v2: This version fixes visws breakage pointed out by Ingo.]
      Signed-off-by: NMax Krasnyansky <maxk@qualcomm.com>
      Cc: lizf@cn.fujitsu.com
      Cc: jeff.chua.linux@gmail.com
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      23b49c19
  7. 12 8月, 2008 2 次提交