35dc6dcc49
There is a chance that the libnuma library may corrupt top's display with some stderr warning messages in the event something under /sys/devices/system/node/ cannot be accessed. And, while 2 overridable 'weak' functions are provided to alter such behavior, we can't use them since top dynamically links to the library via dlopen. This commit will redirect stderr to '/dev/null' during just the first screen display cycle. Thus we can avoid the corruption which would have remained visible until the underlining screen row's data had finally changed. Lastly, this patch should allow such a library warning to actually appear when one finally exits our program. [ i think the libnuma folks should consider changing ] [ the error/warning interfaces to accommodate dlopen ] [ rather than forcing something like the ugly kludge ] [ we have employed or libnuma dependency on everyone ] Reference(s): https://bugzilla.redhat.com/show_bug.cgi?id=998678 Signed-off-by: Jim Warner <james.warner@comcast.net>
COMPATIBILITY
This code is intended for use with Linux 2.6.xx, 3.x and
hopefully all future kernels.
INSTALLATION
If you are using git version of the project you need extra step.
./autogen.sh
After that, and everyone using .tar.xz version of procps-ng, can
do normal build. Read './configure --help' to select options for
your needs.
./configure
make
make install
If you have DejaGNU installed you can run optional test suite.
make check
HOW TO CONTRIBUTE
See Documentation/BUGS file.
PACKAGING
If you are a downstream maintainer (packager) for a Linux
distribution, please avoid causing troubles. This section
applies to you.
Avoid maintaining distribution specific patches. Send your
patches to upstream, where they are at least reviewed, if not
included.
Please forward bug reports. If your bug database is public and
busy enough to bother with, please make this known. Follow
Debian's lead in making the bug database easy to comment on via
email without need for an account.
For normal packages, ensure that you do not add debugging flags
to the CFLAGS variable.
UPSTREAM & BUG REPORTS
procps-ng <procps@freelists.org>