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Add slightly better kmalloc_aligned() and kfree_aligned().

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Process page directories can now actually be freed. This could definitely
be implemented in a nicer, less wasteful way, but this works for now.

The spawn stress test can now run for a lot longer but eventually dies
due to kmalloc running out of memory.
This commit is contained in:
Andreas Kling 2018-12-26 21:31:46 +01:00
parent 55c722096d
commit f6179ad9f9
5 changed files with 26 additions and 20 deletions
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4
Kernel/init.cpp
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@ -40,8 +40,8 @@ static void spawn_stress()
for (unsigned i = 0; i < 10000; ++i) {
int error;
Process::create_user_process("/bin/id", (uid_t)100, (gid_t)100, (pid_t)0, error, Vector<String>(), Vector<String>(), tty0);
kprintf("malloc stats: alloc:%u free:%u page_aligned:%u eternal:%u\n", sum_alloc, sum_free, kmalloc_page_aligned, kmalloc_sum_eternal);
Process::create_user_process("/bin/true", (uid_t)100, (gid_t)100, (pid_t)0, error, Vector<String>(), Vector<String>(), tty0);
kprintf("malloc stats: alloc:%u free:%u eternal:%u ", sum_alloc, sum_free, kmalloc_sum_eternal);
kprintf("delta:%u\n", sum_alloc - lastAlloc);
lastAlloc = sum_alloc;
sleep(60);