[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Oh and also openvswitch, bug 1906280
To summarize, here are all the applications (found so far) that thought
they needed to lock all their current and future memory:
slick-greeter (bug 1902879)
lightdm-gtk-greeter (bug 1890394)
corosync (bug 1911904)
openvswitch (bug 1906280)
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
found another 'special' application that thinks it needs all its memory
locked: corosync.
opened bug 1911904
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Both the slick-greeter and lightdm-gtk-greeter packages have been now
released into -updates. I think it should be now safe-ish to proceed
with the systemd update once again. Let's think about it in the nearest
time.
** Tags removed: block-proposed-bionic
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
To clarify, the regression appears to be the same problem that the
rlimit increase is fixing, but the applications failing now are simply
bigger. In general, any application that calls mlockall() with
MCL_FUTURE, but doesn't adjust its rlimit (or change its systemd service
file to adjust LimitMEMLOCK) is very likely destined to crash later in
its life.
I believe the only lp bugs for this regression are bug 1890394 and bug
1902879, which are both fix-committed and verified, so this bug should
be ok to release (again) after those are released. Also I will note both
of those applications (slick-greeter and lightdm-gtk-greeter) were fixed
by commenting out their calls to mlockall.
There is also bug 1902871 and bug 1903199 but I believe those are both
dups of bug 1900394.
Also finally to reflect on cryptsetup's use of mlockall(), since it's
the origin for this bug; cryptsetup is maybe "better" about its use of
mlockall() since it keeps the mlock only for the duration of an
'action':
if (action->required_memlock)
crypt_memory_lock(NULL, 1);
set_int_handler(0);
r = action->handler();
if (action->required_memlock)
crypt_memory_lock(NULL, 0);
however, as this bug shows, that action handler function can still
attempt to allocate enough memory to reach the rlimit and cause
allocation failures. Personally, I think cryptsetup should be fixed
upstream to call setrlimit() to increase its RLIMIT_MEMLOCK to infinity,
at least while the mlock is in effect.
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Tags added: block-proposed-bionic
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
I have backed out the published version in bionic-updates to the
previously published version in the pocket: 237-3ubuntu10.42.
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Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
The libghtdm-gtk-greeter is having the same issue which is breaking
xubuntu, see bug #1902871. Could we revert that SRU to proposed instead
of updates to avoid bricking more user systems until we have a better
handle on the problem and at least have those greeter fixes out?
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Thank you Łukasz, I filed it in LP: #1902879.
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Hey Alkis! Can you please fill in a new bug report with all the detailed
information and tag it wit 'regression-update'? Thank you!
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
What torel proposed in https://bugs.launchpad.net/ubuntu/+source/unity-
greeter/+bug/1662244/comments/14 avoids the segfault:
* soft memlock 262144
* hard memlock 262144
Should all lightdm users manually put that in limits.conf, or should we
expect some update?
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Hi, this update makes slick-greeter segfault, so Ubuntu MATE 18.04 users
doing normal updates now get a black screen with a flicking cursor.
A temporary workaround is to enable autologin in
/etc/lightdm/lightdm.conf:
[Seat:*]
autologin-guest=false
autologin-user=administrator
autologin-user-timeout=0
*** What would be a proper fix for this? ***
A related discussion about memory limits and lightdm issues exists in this bug
report:
https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1662244
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
This bug was fixed in the package systemd - 237-3ubuntu10.43
---
systemd (237-3ubuntu10.43) bionic; urgency=medium
[ Guilherme G. Piccoli ]
* d/p/lp1830746-bump-mlock-ulimit-to-64Mb.patch:
- Bump the memlock limit to match Focal and newer releases (LP: #1830746)
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=61adb797642f3dd2e5c14f7914c2949c665cefe8
[ Victor Manuel Tapia King ]
* d/p/lp1896614-core-Avoid-race-when-starting-dbus-services.patch:
- Fix race when starting dbus services (LP: #1896614)
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=373cb6ccd6978a7112bbfd7e5cf4f703a9f8448e
[ Dan Streetman ]
* d/t/*,
d/p/lp1892358/0001-test-increase-qemu-timeout-for-TEST-08-and-TEST-09.patch,
d/p/lp1892358/0002-test-increase-timeout-for-TEST-17-UDEV-WANTS.patch,
d/p/lp1892358/0003-test-increase-qemu-timeout-for-TEST-18-and-TEST-19.patch:
- Increase QEMU_TIMEOUT on 'upstream' autopkgtest tests
- Pull latest tests from newer releases to fix false negatives
- Blacklist flaky 'upstream' TEST-03
(LP: #1892358)
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=9fd8391c2499e163515b629a8ca5790898fc599d
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=d1756b3e1c3e625ed7162cff4909e7a29c315051
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=37f8d73516a84e85e4057d6a92204b4a174af718
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=229ed2076eb773efc548035262b8b8009bf89207
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=f2d7b1f952667316cc07a4b3c5010e66ace07a90
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=659befe61bbfeb7afc9efa24458c9745412d7c6d
-- Victor Manuel Tapia King Wed, 07 Oct
2020 16:30:03 -0400
** Changed in: systemd (Ubuntu Bionic)
Status: Fix Committed => Fix Released
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Released
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0]
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
I was able to verify this bug with systemd from bionic-proposed (version
237-3ubuntu10.43) by following the procedure in the test case; it's
working as expected, I can see 64M in the memlock limit.
** Tags removed: verification-needed verification-needed-bionic
** Tags added: verification-done verification-done-bionic
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Committed
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Hello Kees, or anyone else affected,
Accepted systemd into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.43 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed. Your feedback will aid us getting this
update out to other Ubuntu users.
If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. In either case, without details of your testing we will
not be able to proceed.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance for helping!
N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.
** Changed in: systemd (Ubuntu Bionic)
Status: In Progress => Fix Committed
** Tags added: verification-needed verification-needed-bionic
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Committed
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Tags added: sts sts-sponsor-ddstreet
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
In Progress
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Patch added: "This is the (tested) debdiff with the proposed SRU, for Bionic
only."
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+attachment/5409870/+files/bionic_systemd_lp1830746.debdiff
--
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
In Progress
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting Bionic on-par with newer releases.
* A discussion about this topic (leading to this SRU) is present in
ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
devel/2020-September/041159.html.
[Test Case]
* The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
* A more interesting test is to run a Focal container in a current
Bionic system and try to build the cryptsetup package - it'll fail in
some tests. After updating the host (Bionic) systemd to include the
mlock bump patch, the build succeeds in the Focal container.
[Regression Potential]
* Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
[0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Description changed:
- See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock-
- cannot-exceed-16777216/4856/5
+ [Impact]
+ * Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
+ * Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
- In containers, the limits.kernel.memlock cannot exceed 16777216 when the
- container is bionic. The memlock setting is set to 16M in systemd and
- cannot be bumped up in an unprivileged container.
+ * It's especially harmful in containers to have such "small" limit, so
+ we are hereby SRUing a more recent bump from upstream systemd, in the
+ form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
+ [https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
+ releases, like Focal and subsequent ones, already include this patch so
+ effectively we're putting Bionic on-par with newer releases.
- This is fixed in upstream systemd.
+ * A discussion about this topic (leading to this SRU) is present in
+ ubuntu-devel ML: https://lists.ubuntu.com/archives/ubuntu-
+ devel/2020-September/041159.html.
- Container ubuntu version:
- Distributor ID: Ubuntu
- Description: Ubuntu 18.04.2 LTS
- Release: 18.04
- Codename: bionic
+ [Test Case]
+ * The straightforward test is to just look "ulimit -l" and "ulimit -Hl" in a
current Bionic system, and then install an updated version with the hereby
proposed SRU to see such limit bump from 16M to 64M (after a reboot) - a
version containing this fix is available at my PPA as of 2020-09-10 [0] (likely
to be deleted in next month or so).
- systemd package version: 237-3ubuntu10.21
+ * A more interesting test is to run a Focal container in a current
+ Bionic system and try to build the cryptsetup package - it'll fail in
+ some tests. After updating the host (Bionic) systemd to include the
+ mlock bump patch, the build succeeds in the Focal container.
+
+ [Regression Potential]
+ * Since it's a simple bump and it makes Bionic behave like Focal, I don't
foresee regressions. One potential issue would be if some users rely on the
lower default limit (16M) and this value is bumped by a package update, but
that could be circumvented by setting a lower limit in limits.conf. The
benefits for such bump are likely much bigger than any "regression" caused for
users relying on such default limit.
+
+
+ [0] https://launchpad.net/~gpiccoli/+archive/ubuntu/test1830746
** Also affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu Focal)
Status: New => Fix Released
** Changed in: systemd (Ubuntu Focal)
Importance: Undecided => High
** Changed in: systemd (Ubuntu Focal)
Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)
** Tags removed: patch rls-dd-incoming
** Tags added: seg
--
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1830746
Title:
memlock setting in systemd (pid 1) too low for containers (bionic)
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
In Progress
Status in systemd source package in Cosmic:
Won't Fix
Status in systemd source package in Disco:
Won't Fix
Status in systemd source package in Eoan:
Fix Released
Status in systemd source package in Focal:
Fix Released
Bug description:
[Impact]
* Since systemd commit fb3ae275cb ("main: bump RLIMIT_NOFILE for the root
user substantially") [https://github.com/systemd/systemd/commit/fb3ae275cb],
which is present in Bionic, the memlock ulimit value was bumped to 16M. It's an
adjustable limit, but the default (in previous Ubuntu releases/systemd
versions) was really small.
* Although bumping this value was a good thing, 16M is not enough and we can
see failures on mlock'ed allocations on Bionic, like the one hereby reported by
Kees or the recent introduced cryptsetup build failures (due to PPA builder
updates to Bionic) - see https://bugs.launchpad.net/bugs//1891473.
* It's especially harmful in containers to have such "small" limit, so
we are hereby SRUing a more recent bump from upstream systemd, in the
form of commit 91cfdd8d29 ("core: bump mlock ulimit to 64Mb")
[https://github.com/systemd/systemd/commit/91cfdd8d29]. Latest Ubuntu
releases, like Focal and subsequent ones, already include this patch
so effectively we're putting
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Hi Sebastian, thanks for offering help. And thanks of course Kees for reporting the issue! Recently we faced a build breakage of cryptsetup package narrowed to this issue: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1891473 I intend to bump this limit to 64M to match recent releases; I'm using the upstream systemd commit for this: https://github.com/systemd/systemd/commit/91cfdd8d29 Cheers, Guilherme ** Changed in: systemd (Ubuntu Cosmic) Status: Confirmed => Won't Fix ** Changed in: systemd (Ubuntu) Importance: Undecided => High ** Changed in: systemd (Ubuntu Bionic) Importance: Undecided => High ** Changed in: systemd (Ubuntu Cosmic) Importance: Undecided => High ** Changed in: systemd (Ubuntu) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) ** Changed in: systemd (Ubuntu Disco) Importance: Undecided => High ** Changed in: systemd (Ubuntu Eoan) Importance: Undecided => High ** Changed in: systemd (Ubuntu Bionic) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) ** Changed in: systemd (Ubuntu Cosmic) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) ** Changed in: systemd (Ubuntu Disco) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) ** Changed in: systemd (Ubuntu Eoan) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) ** Changed in: systemd (Ubuntu Bionic) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: In Progress Status in systemd source package in Cosmic: Won't Fix Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Unfortunately I have not experience or knowledge of Ubuntu packaging or bug fixing processes, but is there anything I can do to help get this fixed in bionic? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: Confirmed Status in systemd source package in Cosmic: Confirmed Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: systemd (Ubuntu Bionic) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: Confirmed Status in systemd source package in Cosmic: Confirmed Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: systemd (Ubuntu Cosmic) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: Confirmed Status in systemd source package in Cosmic: Confirmed Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Changed in: systemd (Ubuntu Disco) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: New Status in systemd source package in Cosmic: New Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
Hmm, sorry, brainfart. At least 240. Not sure how far back it went. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: New Status in systemd source package in Cosmic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
OLder systemds, (234-240, I think) have a different erroneous clamp on RLIMIT_MEMLOCK. See #1840435. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: New Status in systemd source package in Cosmic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
This has landed in Eoan in at least version 242 of systemd. ** Changed in: systemd (Ubuntu Eoan) Status: New => Fix Released ** Tags added: rls-dd-incoming -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: New Status in systemd source package in Cosmic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: Fix Released Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Also affects: systemd (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: systemd (Ubuntu Cosmic) Importance: Undecided Status: New ** Also affects: systemd (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: systemd (Ubuntu Eoan) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: New Status in systemd source package in Bionic: New Status in systemd source package in Cosmic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: New Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
The attachment "fix-memlock-bump.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: New Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1830746] Re: memlock setting in systemd (pid 1) too low for containers (bionic)
** Patch added: "fix-memlock-bump.patch" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+attachment/5267179/+files/fix-memlock-bump.patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1830746 Title: memlock setting in systemd (pid 1) too low for containers (bionic) Status in systemd package in Ubuntu: New Bug description: See also https://discuss.linuxcontainers.org/t/limits-kernel-memlock- cannot-exceed-16777216/4856/5 In containers, the limits.kernel.memlock cannot exceed 16777216 when the container is bionic. The memlock setting is set to 16M in systemd and cannot be bumped up in an unprivileged container. This is fixed in upstream systemd. Container ubuntu version: Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic systemd package version: 237-3ubuntu10.21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1830746/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
