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made pagefault handler more verbose

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This commit is contained in:
Steffen Vogel 2014-11-28 02:15:49 +01:00
parent d289601a0e
commit 95791bb12c
1 changed files with 7 additions and 4 deletions
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11
arch/x86/mm/page.c
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@ -147,10 +147,13 @@ void page_fault_handler(struct state *s)
{
size_t viraddr = read_cr2();
kprintf("Page Fault Exception (%d) at cs:ip = %#x:%#lx, address = %#lx\n",
s->int_no, s->cs, s->eip, viraddr);
outportb(0x20, 0x20); /** @todo: do we need this? */
kprintf("Page Fault Exception (%d) at cs:ip = %#x:%#lx, task = %u, addr = %#lx, error = %#x [ %s %s %s %s %s ]\n",
s->int_no, s->cs, s->eip, current_task->id, viraddr, s->error,
(s->error & 0x4) ? "user" : "supervisor",
(s->error & 0x10) ? "instruction" : "data",
(s->error & 0x2) ? "write" : ((s->error & 0x10) ? "fetch" : "read"),
(s->error & 0x1) ? "protection" : "not present",
(s->error & 0x8) ? "reserved bit" : "\b");
while(1) HALT;
}