From: Stefan Liebler <stli@linux.ibm.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH] Use libnss_files.so for tests posix/bug-ga2 and resolv/tst-leaks2 [BZ #26821]
Date: Mon, 23 Nov 2020 10:56:56 +0100 [thread overview]
Message-ID: <fc4756f2-5a32-ffc7-5e4c-cf8487e81e19@linux.ibm.com> (raw)
In-Reply-To: <CAMe9rOpLzzzAFj3FPTFH-Gyb5Sz4=rVuzKKGHuUrA-EqV+Qt3Q@mail.gmail.com>
On 11/20/20 2:40 PM, H.J. Lu wrote:
> On Fri, Nov 20, 2020 at 4:08 AM Stefan Liebler via Libc-alpha
> <libc-alpha@sourceware.org> wrote:
>>
>> The tests posix/bug-ga2-mem and resolv/mtrace-tst-leaks2 are failing on
>> fedora 33 as mtrace reports memory leaks.
>>
>> The /etc/nsswitch.conf differs between
>> Fedora 32: hosts: files dns myhostname
>> Fedora 33: hosts: files resolve [!UNAVAIL=return] myhostname dns
>>
>> Therefore /lib64/libnss_resolve.so.2 (from systemd) and the dependencies
>> libgcc_s.so.1 and libpthread.so.0 are loaded.
>>
>> Usually all malloc'ed resources from getaddrinfo / gethostbyname are freed
>> and the libraries are dlclose'd in nss/nsswitch.c:libc_freeres_fn (free_mem).
>> Unfortunately, /lib64/libnss_resolve.so.2 is marked with DF_1_NODELETE.
>> As this library is not unmapped, you'll see "Memory not freed".
>>
>> Therefore those tests are now only relying on libnss_files.so by making
>> them test-container tests and providing the required configuration files.
>>
>> By moving the tests to tests-container, those are now running with
>> "make check". Therefore the mtrace part of the tests are also moved
>> from "make xcheck" to "make check".
>>
>> bug-ga2.c is now using test-driver.c in order to support WAIT_FOR_DEBUGGER
>> environment variable.
>> ---
>> posix/Makefile | 6 +++---
>> posix/bug-ga2.c | 13 +++++++------
>> posix/bug-ga2.root/etc/hosts | 1 +
>> posix/bug-ga2.root/etc/nsswitch.conf | 2 ++
>> posix/bug-ga2.root/etc/services | 1 +
>> resolv/Makefile | 7 +++----
>> resolv/tst-leaks2.c | 6 ++++--
>> resolv/tst-leaks2.root/etc/hosts | 1 +
>> resolv/tst-leaks2.root/etc/nsswitch.conf | 1 +
>> 9 files changed, 23 insertions(+), 15 deletions(-)
>> create mode 100644 posix/bug-ga2.root/etc/hosts
>> create mode 100644 posix/bug-ga2.root/etc/nsswitch.conf
>> create mode 100644 posix/bug-ga2.root/etc/services
>> create mode 100644 resolv/tst-leaks2.root/etc/hosts
>> create mode 100644 resolv/tst-leaks2.root/etc/nsswitch.conf
>>
>
> LGTM.
>
> Thanks.
>
I've just committed it and I've also closed the bugzilla.
Thanks,
Stefan
next prev parent reply other threads:[~2020-11-23 9:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-20 12:06 Stefan Liebler
2020-11-20 13:40 ` H.J. Lu
2020-11-23 9:56 ` Stefan Liebler [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-11-19 12:28 Stefan Liebler
2020-11-19 15:11 ` H.J. Lu
2020-11-19 15:34 ` Carlos O'Donell
2020-11-20 12:10 ` Stefan Liebler
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=fc4756f2-5a32-ffc7-5e4c-cf8487e81e19@linux.ibm.com \
--to=stli@linux.ibm.com \
--cc=hjl.tools@gmail.com \
--cc=libc-alpha@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).