>>>>> On Wed, 6 Jul 2005 10:01:38 +0100, Ralf Baechle <ralf@xxxxxxxxxxxxxx> said: >> You can find the caller of "schedule()" even with simple >> thread_saved_pc(). I think it is enough so I do not think it is >> worth to fix (and maintain) current minfo[]. ralf> The alternative would be to finally bite the bullet and add a ralf> wchan field to thread_struct and initialize it in all the ralf> sleeping functions. ralf> The IA-64 people have something like a DWARF-based frame ralf> unwinder but that just seems to heavy. Another alternative would be: 1. Using KALLSYMS feature in kernel to obtain an address in __sched/__lock function. This might solve static function (and maintainance) issue. 2. Unwinding stack based on "addiu sp,sp,-NN" instruction in prologue of the function. This might solve omit-frame-pointer issue. Anybody try? :-) --- Atsushi Nemoto
