[debian-mysql] Bug#794883: mysql-server-5.5: Package config uses wrong thread_stack size in /etc/my.cnf for amd64 systems

[Ryan Chewning]

Package: mysql-server-5.5
Version: 5.5.44-0+deb8u1
Severity: important
Tags: newcomer

In the default configuration that ships with MySQL Server for amd64
architecture the wrong thread_stack size is configured. Per MySQL
documentation the default thread_stack size for _32-bit_ architectures
should be
192KB. MySQL recommends 256KB for the default size on 64-bit architectures.
We have several 64-bit MySQL servers that have encountered thread stack
overruns
in production because of the incorrect default thread_stack size is set in
the default configuration.

Stable, oldstable, strech and sid are impacted by this.


-- System Information:
Debian Release: 8.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable'), (100, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages mysql-server-5.5 depends on:
ii  adduser                3.113+nmu3
ii  debconf [debconf-2.0]  1.5.56
ii  initscripts            2.88dsf-59
ii  libc6                  2.19-18
ii  libdbi-perl            1.631-3+b1
ii  libgcc1                1:4.9.2-10
ii  libstdc++6             4.9.2-10
ii  lsb-base               4.1+Debian13+nmu1
ii  mysql-client-5.5       5.5.44-0+deb8u1
ii  mysql-common           5.5.44-0+deb8u1
ii  mysql-server-core-5.5  5.5.44-0+deb8u1
ii  passwd                 1:4.2-3
ii  perl                   5.20.2-3+deb8u1
ii  psmisc                 22.21-2
ii  zlib1g                 1:1.2.8.dfsg-2+b1

Versions of packages mysql-server-5.5 recommends:
ii  libhtml-template-perl  2.95-1

Versions of packages mysql-server-5.5 suggests:
ii  bsd-mailx [mailx]       8.1.2-0.20141216cvs-2
ii  heirloom-mailx [mailx]  12.5-4
ii  tinyca                  0.7.5-5

-- debconf information excluded
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