Eric Lee / smarc-ti-linux-kernel

19 Dec, 2013

1 commit

  • c97102ba9   kexec: migrate to reboot cpu ... Browse Code »
    21

    Commit 1b3a5d02ee07 ("reboot: move arch/x86 reboot= handling to generic
    kernel") moved reboot= handling to generic code. In the process it also
    removed the code in native_machine_shutdown() which are moving reboot
    process to reboot_cpu/cpu0.

    I guess that thought must have been that all reboot paths are calling
    migrate_to_reboot_cpu(), so we don't need this special handling. But
    kexec reboot path (kernel_kexec()) is not calling
    migrate_to_reboot_cpu() so above change broke kexec. Now reboot can
    happen on non-boot cpu and when INIT is sent in second kerneo to bring
    up BP, it brings down the machine.

    So start calling migrate_to_reboot_cpu() in kexec reboot path to avoid
    this problem.

    Bisected by WANG Chao.

    Reported-by: Matthew Whitehead
    Reported-by: Dave Young
    Signed-off-by: Vivek Goyal
    Tested-by: Baoquan He
    Tested-by: WANG Chao
    Acked-by: H. Peter Anvin
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Vivek Goyal
     

25 Sep, 2013

1 commit

  • e2f0b88e8   kernel/reboot.c: re-enable the function of variable reboot_default ... Browse Code »

    Commit 1b3a5d02ee07 ("reboot: move arch/x86 reboot= handling to generic
    kernel") did some cleanup for reboot= command line, but it made the
    reboot_default inoperative.

    The default value of variable reboot_default should be 1, and if command
    line reboot= is not set, system will use the default reboot mode.

    [akpm@linux-foundation.org: fix comment layout]
    Signed-off-by: Li Fei
    Signed-off-by: liu chuansheng
    Acked-by: Robin Holt
    Cc: [3.11.x]
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Chuansheng Liu
     

10 Jul, 2013

3 commits