LP:727860 - Second instance of Assertion `bitmap->flush_all_requested == 1' with Aria

The following RQG workload caused the following assertion after about 1 min 30 sec:

mysqld: ma_bitmap.c:455: _ma_bitmap_flush_all: Assertion `bitmap->flush_all_requested == 1' failed.

1. 2011-03-01T14:24:29 #6 0x00000035a6e2b8b5 in __assert_fail () from /lib64/libc.so.6
2. 2011-03-01T14:24:29 #7 0x00000000009c85be in _ma_bitmap_flush_all (share=0x7fe4f00a2bf8) at ma_bitmap.c:455
3. 2011-03-01T14:24:29 #8 0x0000000000980bad in collect_tables (str=0x7fe573edad40, checkpoint_start_log_horizon=4426363314) at ma_checkpoint.c:1092
4. 2011-03-01T14:24:29 #9 0x000000000097eefe in really_execute_checkpoint () at ma_checkpoint.c:198
5. 2011-03-01T14:24:29 #10 0x000000000097eca7 in ma_checkpoint_execute (level=CHECKPOINT_MEDIUM, no_wait=1 '\001') at ma_checkpoint.c:132
6. 2011-03-01T14:24:29 #11 0x000000000097faef in ma_checkpoint_background (arg=0x1) at ma_checkpoint.c:623
7. 2011-03-01T14:24:29 #12 0x00000035a7207761 in start_thread () from /lib64/libpthread.so.0

RQG command line:

perl runall.pl \
--queries=1M \
--engine=Maria \
-mysqld=-default-storage-engine=Maria \
-mysqld=-safe-mode \
-mysqld=-loose-debug-assert-if-crashed-table \
-mysqld=-sync-sys=0 \
-mysqld=-log-output=file \
-mysqld=-maria_log_purge_type=at_flush \
--reporters=ErrorLog,Backtrace,Recovery,Shutdown \
--duration=480 \
--threads=5 \
--rows=1000 \
--mask-level=2 \
--queries=100000000 \
--mask=11829 \
--seed=1298982172 \
-mysqld=-maria-repair-threads=2 \
-mysqld=-loose-maria-group-commit=soft \
-mysqld=-loose-maria_group_commit_interval=10 \
-mysqld=-maria-checkpoint-interval=1 \
-mysqld=-table_cache=32K \
-mysqld=-maria-block-size=4K \
-mysqld=-maria-pagecache-buffer-size=128K \
-mysqld=-maria-pagecache-division-limit=75 \
-mysqld=-maria_pagecache_age_threshold=3000 \
-mysqld=-init-file=/home/philips/bzr/randgen/conf/smf/smf2.sql \
--grammar=conf/smf/smf2.yy \
--basedir=/home/philips/bzr/maria-5.1-merge/

bzr version-info:

[philips@fedora13 maria-5.1-merge]$ bzr version-info
revision-id: <email address hidden>
date: 2011-02-25 17:45:53 +0200
build-date: 2011-03-02 18:02:09 +0200
revno: 3043
branch-nick: maria-5.1-merge