Re: [v6 04/15] mm: discard memblock data later

Pasha Tatashin
2017-08-11T16:24:39Z

>> I will address your comment, and send out a new patch. Should I send it out
>> separately from the series or should I keep it inside?
>
> I would post it separatelly. It doesn't depend on the rest.

OK, I will post it separately. No it does not depend on the rest, but
the reset depends on this. So, I am not sure how to enforce that this
comes before the rest.

>
>> Also, before I send out a new patch, I will need to root cause and resolve
>> problem found by kernel test robot <fengguang.wu@intel.com>, and bisected
>> down to this patch.
>>
>> [ 156.659400] BUG: Bad page state in process swapper pfn:03147
>> [ 156.660051] page:ffff88001ed8a1c0 count:0 mapcount:-127 mapping:
>> (null) index:0x1
>> [ 156.660917] flags: 0x0()
>> [ 156.661198] raw: 0000000000000000 0000000000000000 0000000000000001
>> 00000000ffffff80
>> [ 156.662006] raw: ffff88001f4a8120 ffff88001ed85ce0 0000000000000000
>> 0000000000000000
>> [ 156.662811] page dumped because: nonzero mapcount
>> [ 156.663307] CPU: 0 PID: 1 Comm: swapper Not tainted
>> 4.13.0-rc3-00220-g1aad694 #1
>> [ 156.664077] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
>> 1.9.3-20161025_171302-gandalf 04/01/2014
>> [ 156.665129] Call Trace:
>> [ 156.665422] dump_stack+0x1e/0x20
>> [ 156.665802] bad_page+0x122/0x148
>
> Was the report related with this patch?

Yes, they said that the problem was bisected down to this patch. Do you
know if there is a way to submit a patch to this test robot?

Thank you,
Pasha