• Hugh Dickins's avatar
    panic: panic=-1 for immediate reboot · 4302fbc8
    Hugh Dickins authored
    When a kernel BUG or oops occurs, ChromeOS intends to panic and
    immediately reboot, with stacktrace and other messages preserved in RAM
    across reboot.
    
    But the longer we delay, the more likely the user is to poweroff and
    lose the info.
    
    panic_timeout (seconds before rebooting) is set by panic= boot option or
    sysctl or /proc/sys/kernel/panic; but 0 means wait forever, so at
    present we have to delay at least 1 second.
    
    Let a negative number mean reboot immediately (with the small cosmetic
    benefit of suppressing that newline-less "Rebooting in %d seconds.."
    message).
    Signed-off-by: default avatarHugh Dickins <hughd@chromium.org>
    Signed-off-by: default avatarMandeep Singh Baines <msb@chromium.org>
    Cc: Huang Ying <ying.huang@intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Hugh Dickins <hughd@google.com>
    Cc: Olaf Hering <olaf@aepfle.de>
    Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
    Cc: Dave Airlie <airlied@gmail.com>
    Cc: Greg Kroah-Hartman <gregkh@suse.de>
    Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    4302fbc8
kernel-parameters.txt 93 KB