Messages in this thread | | | Date | Thu, 11 May 2006 14:08:12 +0530 | From | Sachin Sant <> | Subject | Re: Bug while executing : cat /proc/iomem on 2.6.17-rc1/rc2 |
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Russell King wrote:
>Only the root should have a NULL parent, so this is just covering up some >other problem - you have a resource which somehow has illegally ended up >with a NULL parent pointer while it's been registered. > >Maybe try adding: > > if (p->parent == NULL) { > printk("resource with null parent: %lx-%lx: %s\n", > p->start, p->end, p->name); > break; > } > >just before the test in that loop, and then finding out why that resource >is becoming invalid. > > > I get this output in dmesg with the above code.
resource with null parent: 0-57ffffff: System RAM resource with null parent: 0-57ffffff: System RAM
x236:/home/sharyathi/linux-2.6.17-rc1/kernel # cat /proc/iomem 00000000-0009dbff : System RAM 0009dc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cafff : Video ROM 000cb000-000cc5ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-c7fcb5ff : System RAM 00100000-004ff436 : Kernel code 004ff437-0068881f : Kernel data x236:/home/sharyathi/linux-2.6.17-rc1/kernel #
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