RGBCube/serenity
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Fix some paging related bugs exposed by the spawn stress test.

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- Process::exec() needs to restore the original paging scope when called
  on a non-current process.
- Add missing InterruptDisabler guards around g_processes access.
- Only flush the TLB when modifying the active page tables.
This commit is contained in:
Andreas Kling 2018-11-09 01:25:31 +01:00
parent 7b96218389
commit e71cb1c56b
13 changed files with 110 additions and 67 deletions
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4
Kernel/init.cpp
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@ -149,8 +149,8 @@ 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);
// kprintf("delta:%u\n", sum_alloc - lastAlloc);
kprintf("malloc stats: alloc:%u free:%u page_aligned:%u eternal:%u\n", sum_alloc, sum_free, kmalloc_page_aligned, kmalloc_sum_eternal);
kprintf("delta:%u\n", sum_alloc - lastAlloc);
lastAlloc = sum_alloc;
sleep(60);
}