Messages in this thread | | | Subject | Re: [PATCH 2.6.27-rc3 19/28] mdb: adding notify_die handler for keyboard debugger entry | From | Andi Kleen <> | Date | Sat, 16 Aug 2008 08:30:53 +0200 |
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jmerkey@wolfmountaingroup.com writes:
> +#if defined(CONFIG_MDB) || defined(CONFIG_MDB_MODULE) > + if (down && !rep && keycode == KEY_PAUSE) > + { > + if (notify_die(DIE_KERNELDEBUG, NULL, get_irq_regs(), > + 0, -1, SIGINT) == NOTIFY_STOP) > + return; > + } > +#endif > + > #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ > if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { > if (!sysrq_down) {
A nicer alternative to adding an hook here would be to use register_sysrq_key() to register a sysrq key that triggers the debugger. That function is also already exported.
-Andi
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