Bug#878071: ppc64el: Disable lock elision
Package: glibc-source
Version: 2.24-18
Severity: normal
Tags: patch
Dear glibc maintainers,
I think it is a good idea to disable lock elision on glibc for ppc64el
on 'sid' for now. The motivation for this change is basically two:
1) There are some Hardware Transactional Memory[1] changes on POWER9 and that I would prefer to not
trust at this moment for such an important package.
2) There are some hard to debug bugs that is being affected by this
feature[2], so, disabling it until we address all these bugs.
We should re-enable this feature once the two concerns above be addressed.
[1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-October/164319.html
[2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866122
Thank you,
Breno
-- System Information:
Debian Release: buster/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: ppc64el (ppc64le)
Kernel: Linux 4.14.0-rc2+ (SMP w/16 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
glibc-source depends on no packages.
Versions of packages glibc-source recommends:
ii xz-utils 5.2.2-1.3
glibc-source suggests no packages.
-- no debconf information
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