• C
    debug: prevent entering debug mode on panic/exception. · 5516fd7b
    Colin Cross 提交于
    On non-developer devices, kgdb prevents the device from rebooting
    after a panic.
    
    Incase of panics and exceptions, to allow the device to reboot, prevent
    entering debug mode to avoid getting stuck waiting for the user to
    interact with debugger.
    
    To avoid entering the debugger on panic/exception without any extra
    configuration, panic_timeout is being used which can be set via
    /proc/sys/kernel/panic at run time and CONFIG_PANIC_TIMEOUT sets the
    default value.
    
    Setting panic_timeout indicates that the user requested machine to
    perform unattended reboot after panic. We dont want to get stuck waiting
    for the user input incase of panic.
    
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: kgdb-bugreport@lists.sourceforge.net
    Cc: linux-kernel@vger.kernel.org
    Cc: Android Kernel Team <kernel-team@android.com>
    Cc: John Stultz <john.stultz@linaro.org>
    Cc: Sumit Semwal <sumit.semwal@linaro.org>
    Signed-off-by: NColin Cross <ccross@android.com>
    [Kiran: Added context to commit message.
    panic_timeout is used instead of break_on_panic and
    break_on_exception to honor CONFIG_PANIC_TIMEOUT
    Modified the commit as per community feedback]
    Signed-off-by: NKiran Raparthy <kiran.kumar@linaro.org>
    Signed-off-by: NDaniel Thompson <daniel.thompson@linaro.org>
    Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
    5516fd7b
debug_core.c 25.3 KB