On Thu, Jan 28, 2016 at 03:49:46PM +0000, Sudeep Holla wrote:

On 27/01/16 17:49, Greg Kroah-Hartman wrote:

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On Wed, Jan 27, 2016 at 09:16:12AM -0800, Guenter Roeck wrote:

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On 01/27/2016 08:34 AM, Guenter Roeck wrote:

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On 01/27/2016 04:22 AM, Guenter Roeck wrote:
[ ... ]

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---
mn10300 (v3.10, v3.14):

kernel/uid16.c:19:1: error: unknown type name 'old_uid_t'
kernel/uid16.c:19:1: error: unknown type name 'old_gid_t'
ipc/util.c:609:2: error: 'old_uid_t' undeclared

and other similar errors. Requires c86576ea114a ("mn10300: Select CONFIG_HAVE_UID16
to fix build failure"). Results in minor easy to resolve conflict in v3.10.y (I didn't
check v3.14.y). Let me know if you need a backport.

4.1 and 4.3 are also affected by this problem.

---
arm64 (4.1, 4.3):

allmodconfig core dumps (oops). I'll need to look into that one.

Two patches are culprits here:

- 'recordmcount: arm64: Replace the ignored mcount call into nop' causes the crash.
  It is not the C compiler. Maybe some other patch to recordmcount is missing.

This bug is due the endianness mix at-least in my build setup and commit
c84da8b9ad37 ("recordmcount: Fix endianness handling bug for
nop_mcount") seems to fix it for me.

It's already marked for stable and I see that there are quite a few
patches queued for stable in scripts/recordmcount.[ch]. But I see Greg
has already pointed this out in the NOTE in his initial "[PATCH 4.1 000/127]
4.1.17-stable review" email.

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- 'arm64: mm: use correct mapping granularity under DEBUG_RODATA' uses SWAPPER_BLOCK_SIZE
  which is not defined in 4.3. This causes a build failure in 4.3 after reverting the above.
  I didn't check 4.1.

Ardb already posted a fix for this [1]

Thanks, I should have this all straightened out now...

greg k-h