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Monday, April 8th, 2019

    Time Event
    12:45a
    Kernel prepatch 5.1-rc4
    The fourth 5.1 kernel prepatch is out for
    testing. "Smaller than rc3, I'm happy to say. Nothing
    particularly big in here, just a number of small things all over.
    "
    2:18p
    Major Browsers to Prevent Disabling of Click Tracking Privacy Risk (BleepingComputer)
    BleepingComputer reports
    that browser developers are removing the ability to disable "ping="
    click tracking. "Google Chrome also enables this tracking feature by
    default, but in the current Chrome 73 version it includes a 'Hyperlink
    auditing' flag that can be used to disable it from the chrome://flags URL.
    In the Chrome 74 Beta and Chrome 75 Canary builds, though, this flag has
    been removed and there is no way to disable hyperlink auditing.
    "
    Firefox still allows this "feature" to be disabled (and disables it by
    default).
    2:35p
    Security updates for Monday
    Security updates have been issued by Debian (roundup, samba, tryton-server, and wget), Fedora (evolution-data-server, evolution-ews, glpi, ntp, poppler, pspp, and wget), Mageia (advancecomp, cfitsio, firefox, ghostscript, gnutls, libjpeg, libpng, ocaml, python-yaml, ruby-ox, SDL12, and thunderbird), openSUSE (adcli, sssd, go1.11, liblouis, nodejs6, openssl, ovmf, sqlite3, sysstat, thunderbird, tiff, and znc), Red Hat (chromium-browser and python), Slackware (httpd, openjpeg, and wget), SUSE (bash, clamav, dovecot22, kernel, php53, SDL, and xen), and Ubuntu (clamav and samba).
    3:06p
    [$] Making slab-allocated objects movable
    Memory fragmentation is a constant problem for memory-management
    subsystems. Over the years, considerable effort has been put into
    reducing fragmentation in the Linux kernel, but almost all of that work has
    been focused on memory management at the page level. The slab allocators,
    which (mostly) manage memory in chunks of less than the page size, have
    seen less attention, but fragmentation at this level can create problems
    throughout the system. The slab
    movable objects patch set
    posted by Tobin Harding is an attempt to
    improve this situation by making it possible for the kernel to actively
    defragment slab pages by moving objects around.

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