exit: panic before exit_mm() on global init exit
Currently, when global init and all threads in its thread-group have exited we panic via: do_exit() -> exit_notify() -> forget_original_parent() -> find_child_reaper() This makes it hard to extract a useable coredump for global init from a kernel crashdump because by the time we panic exit_mm() will have already released global init's mm. This patch moves the panic futher up before exit_mm() is called. As was the case previously, we only panic when global init and all its threads in the thread-group have exited. Signed-off-by:chenqiwu <chenqiwu@xiaomi.com> Acked-by:
Christian Brauner <christian.brauner@ubuntu.com> Acked-by:
Oleg Nesterov <oleg@redhat.com> [christian.brauner@ubuntu.com: fix typo, rewrite commit message] Link: https://lore.kernel.org/r/1576736993-10121-1-git-send-email-qiwuchen55@gmail.com Signed-off-by:
Christian Brauner <christian.brauner@ubuntu.com>
parent
0b8d616f
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