Package: leveldb
Version: 0+20120530.gitdd0d562-1
Followup-For: Bug #677645
User: ubuntu-de...@lists.ubuntu.com
Usertags: origin-ubuntu quantal ubuntu-patch
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Dear Maintainer,
* Fix FTBFS on big-endian architectures (LP: #1021560):
- d/patches/9112-fix-bloom-test.patch: Increase false positive threshold
by 1% to deal with test failures on big-endian architectures. Picked
from upstream dev mailing list.
I appreciate that this is a less that ideal resolution to this problem; upstream
have identified this is a test case issue rather than an underlying problem.
Thanks for considering the patch.
- -- System Information:
Debian Release: wheezy/sid
APT prefers quantal-updates
APT policy: (500, 'quantal-updates'), (500, 'quantal-security'), (500,
'quantal')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.5.0-4-generic (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
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=== added file 'debian/patches/9112-fix-bloom-test.patch'
--- debian/patches/9112-fix-bloom-test.patch 1970-01-01 00:00:00 +0000
+++ debian/patches/9112-fix-bloom-test.patch 2012-07-16 19:28:20 +0000
@@ -0,0 +1,17 @@
+Description: Increase false positive rate to deal with testing
+ on big-endian architectures.
+Origin: https://groups.google.com/forum/?fromgroups#!topic/leveldb/SbVPvl4j4vU
+
+Index: leveldb-0+20120530.gitdd0d562/util/bloom_test.cc
+===================================================================
+--- leveldb-0+20120530.gitdd0d562.orig/util/bloom_test.cc 2012-06-02 10:29:43.000000000 +0000
++++ leveldb-0+20120530.gitdd0d562/util/bloom_test.cc 2012-07-16 19:15:47.000000000 +0000
+@@ -139,7 +139,7 @@
+ fprintf(stderr, "False positives: %5.2f%% @ length = %6d ; bytes = %6d\n",
+ rate*100.0, length, static_cast<int>(FilterSize()));
+ }
+- ASSERT_LE(rate, 0.02); // Must not be over 2%
++ ASSERT_LE(rate, 0.03); // Must not be over 3%
+ if (rate > 0.0125) mediocre_filters++; // Allowed, but not too often
+ else good_filters++;
+ }
=== modified file 'debian/patches/series'
--- debian/patches/series 2012-06-14 10:38:40 +0000
+++ debian/patches/series 2012-07-16 19:28:20 +0000
@@ -11,3 +11,4 @@
0102-kfreebsd.patch
0103-hurd.patch
0112-makefile_install.patch
+9112-fix-bloom-test.patch
