[debian-mysql] Bug#684096: mysql-server-5.5: High CPU since (presumably) 5.5.24+dfsg-1

[Lisandro Damián Nicanor Pérez Meyer]

Package: mysql-server-5.5
Version: 5.5.24+dfsg-6
Severity: important

Hi maintainers! Since version 5.5.24+dfsg-1 (it could have been one or more
uploads later) mysql presents a high cpu usage since it starts, on each thread.

At first I assumed it was updating tables, but days later I realized that the
high cpu ussage was still present, and the databases in this server aren't that
big.

I have also tried modifying /etc/mysql/debian-start commenting out the upgrade
stuff, but the behaviour continues upon restarting the daemon.

Please feel free to ask for more info.

Kinds regards, Lisandro.

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages mysql-server-5.5 depends on:
ii  adduser                3.113+nmu3
ii  debconf [debconf-2.0]  1.5.44
ii  initscripts            2.88dsf-22.1
ii  libc6                  2.13-33
ii  libdbi-perl            1.622-1
ii  libgcc1                1:4.7.1-2
ii  libstdc++6             4.7.1-2
ii  lsb-base               4.1+Debian7
ii  mysql-client-5.5       5.5.24+dfsg-6
ii  mysql-common           5.5.24+dfsg-6
ii  mysql-server-core-5.5  5.5.24+dfsg-6
ii  passwd                 1:4.1.5.1-1
ii  perl                   5.14.2-12
ii  psmisc                 22.19-1

Versions of packages mysql-server-5.5 recommends:
ii  bsd-mailx [mailx]       8.1.2-0.20111106cvs-1
ii  heirloom-mailx [mailx]  12.5-2
ii  libhtml-template-perl   2.91-1

Versions of packages mysql-server-5.5 suggests:
pn  tinyca  <none>

-- debconf information:
  mysql-server/error_setting_password:
  mysql-server-5.5/postrm_remove_databases: false
  mysql-server-5.5/nis_warning:
  mysql-server-5.5/really_downgrade: false
  mysql-server-5.5/start_on_boot: true
  mysql-server/password_mismatch:
  mysql-server/no_upgrade_when_using_ndb: