Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address

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On 23-Dec-13, at 3:34 PM, Rolf Eike Beer wrote:

Am Donnerstag, 19. Dezember 2013, 21:17:51 schrieb Aaro Koskinen:
Hi,

This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:

I also suspect this patch of causing trouble. My C8000 regularly submits to the libarchive dashboard (http://my.cdash.org/index.php?project=libarchive ).
Since I upgraded to 3.12.5 one test (libarchive_test_compat_mac) keeps
failing. The day after compile errors and other problems started (just browse through the last 2 weeks and you will see it). Then I reverted that change and rebootet. The compat_mac test still fails, but the other failures are gone.

The libarchive_test_compat_mac test also appears to fail on x86. It didn't fail
in my 3.1.2 build with kernel change.

I believe the GLIBC 2.18 change was wrong but I don't see why it would cause compile errors. I have compiled many packages with the kernel change and not
seen problems that I would attribute to it.

I did a test build of libarchive and saw following fails:

Failing tests:
  20: test_archive_read_close_twice_open_fd (3 failures)
  21: test_archive_read_close_twice_open_filename (3 failures)

This was with 3.1.2. Looking at the logs, it didn't appear that these were mmap issues.

We need more data.

Dave
--
John David Anglin	dave.anglin@xxxxxxxx



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