On Mon, Dec 06, 2004 at 10:17:55AM -0800, Dave Hansen wrote:
> On Mon, 2004-12-06 at 10:11, Mark Wong wrote:
> > The addr2line returned:
> > ??:0
>
> Turn on your kernel debugging in the future, please. Basically make
> sure to compile with -g.
>
I rebuilt mm/memory_hotplug.o with -g. Is the attached objdump
sufficient?
Mark
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00000510 <online_pages>:
int online_pages(unsigned long pfn, unsigned long nr_pages)
{
510: 57 push %edi
int i;
printk(KERN_DEBUG "%s: onlining 0x%lx pages starting from pfn: 0x%lx\n",
511: b8 38 00 00 00 mov $0x38,%eax
516: 56 push %esi
517: 53 push %ebx
518: 83 ec 10 sub $0x10,%esp
__func__, nr_pages, pfn);
for (i = 0; i < nr_pages; i++) {
51b: 31 db xor %ebx,%ebx
51d: 89 44 24 04 mov %eax,0x4(%esp,1)
521: 8b 7c 24 24 mov 0x24(%esp,1),%edi
525: 8b 74 24 20 mov 0x20(%esp,1),%esi
529: c7 04 24 e0 00 00 00 movl $0xe0,(%esp,1)
530: 89 7c 24 08 mov %edi,0x8(%esp,1)
534: 89 74 24 0c mov %esi,0xc(%esp,1)
538: e8 fc ff ff ff call 539 <online_pages+0x29>
53d: 39 fb cmp %edi,%ebx
53f: 72 3f jb 580 <online_pages+0x70>
struct zone;
extern struct zone *zone_table[];
static inline struct zone *page_zone(struct page *page)
{
541: 89 34 24 mov %esi,(%esp,1)
544: e8 fc ff ff ff call 545 <online_pages+0x35>
return zone_table[page->flags >> NODEZONE_SHIFT];
549: 8b 00 mov (%eax),%eax
54b: c1 e8 1d shr $0x1d,%eax
54e: 8b 04 85 00 00 00 00 mov 0x0(,%eax,4),%eax
555: 01 b8 18 03 00 00 add %edi,0x318(%eax)
struct page *page = pfn_to_page(pfn + i);
if (page_count(page) == 0)
online_page(page);
}
page_zone(pfn_to_page(pfn))->present_pages += nr_pages;
printk(KERN_DEBUG "%s: onlining if 0x%lx pages done.\n",
55b: b8 38 00 00 00 mov $0x38,%eax
560: 89 7c 24 08 mov %edi,0x8(%esp,1)
564: 89 44 24 04 mov %eax,0x4(%esp,1)
568: c7 04 24 18 01 00 00 movl $0x118,(%esp,1)
56f: e8 fc ff ff ff call 570 <online_pages+0x60>
__func__, nr_pages);
/* need error checking */
return 0;
}
574: 83 c4 10 add $0x10,%esp
577: 31 c0 xor %eax,%eax
579: 5b pop %ebx
57a: 5e pop %esi
57b: 5f pop %edi
57c: c3 ret
57d: 8d 76 00 lea 0x0(%esi),%esi
580: 8d 04 33 lea (%ebx,%esi,1),%eax
583: 89 04 24 mov %eax,(%esp,1)
586: e8 fc ff ff ff call 587 <online_pages+0x77>
58b: 89 c2 mov %eax,%edx
#ifdef CONFIG_HUGETLB_PAGE
static inline int page_count(struct page *p)
{
58d: 89 c1 mov %eax,%ecx
#endif
static inline int constant_test_bit(int nr, const volatile unsigned long *addr)
{
return ((1UL << (nr & 31)) & (addr[nr >> 5])) != 0;
58f: 8b 00 mov (%eax),%eax
591: a9 00 80 00 00 test $0x8000,%eax
596: 74 03 je 59b <online_pages+0x8b>
static inline int page_count(struct page *p)
{
if (PageCompound(p))
p = (struct page *)p->private;
598: 8b 4a 0c mov 0xc(%edx),%ecx
59b: 8b 41 04 mov 0x4(%ecx),%eax
59e: 40 inc %eax
59f: 74 07 je 5a8 <online_pages+0x98>
5a1: 43 inc %ebx
5a2: 39 fb cmp %edi,%ebx
5a4: 72 da jb 580 <online_pages+0x70>
5a6: eb 99 jmp 541 <online_pages+0x31>
5a8: 89 14 24 mov %edx,(%esp,1)
5ab: e8 fc ff ff ff call 5ac <online_pages+0x9c>
5b0: eb ef jmp 5a1 <online_pages+0x91>
5b2: 8d b4 26 00 00 00 00 lea 0x0(%esi,1),%esi
5b9: 8d bc 27 00 00 00 00 lea 0x0(%edi,1),%edi
