On Mon, 2018-03-26 at 15:01:16 UTC, Nicholas Piggin wrote: > system_reset_exception does most of its own crash handling now, > invoking the debugger or crash dumps if they are registered. If not, > then it goes through to die() to print stack traces, and then is > supposed to panic (according to comments). > > However after die() prints oopses, it does its own handling which > doesn't allow system_reset_exception to panic (e.g., it may just > kill the current process). This patch causes sreset exceptions to > return from die after it prints messages but before acting. > > This also stops die from invoking the debugger on 0x100 crashes. > system_reset_exception similarly calls the debugger. It had been > thought this was harmless (because if the debugger was disabled, > neither call would fire, and if it was enabled the first call > would return). However in some cases like xmon 'X' command, the > debugger returns 0, which currently causes it to be entered > again (first in system_reset_exception, then in die), which is > confusing. > > Signed-off-by: Nicholas Piggin <npig...@gmail.com>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/d40b6768e45bd9213139b2d91d30c7 cheers
