The issue is impacting impish daily
$ sudo snap pack src
libgcc_s.so.1 must be installed for pthread_cancel to work
erreur : cannot pack "src": mksquashfs call failed
$ snap version
snap 2.53~pre1.git19b68f708
snapd 2.53~pre1.git19b68f708
series 16
ubuntu 21.10
kernel 5.13.0-16-generic
$ dpkg -l snapd
ii snapd 2.53~pre1.git19b68f708 amd64 Daemon and tooling that >
Using SNAPD_DEBUG=1 gives
2021/09/29 17:42:27.460907 tool_linux.go:93: DEBUG: snap (at
"/snap/snapd/current") is older ("2.51.7") than distribution package
("2.53~pre1.git19b68f708")
Sounds like an issue we should fix for release so tagging rls incoming
** Tags added: impish rls-ii-incoming
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Touch seeded packages, which is subscribed to openssh in Ubuntu.
https://bugs.launchpad.net/bugs/1943077
Title:
snapd fails to autopkgtest on mksquashfs, which is looking for
libgcc_s
Status in snapd:
Fix Committed
Status in openssh package in Ubuntu:
New
Status in squashfs-tools package in Ubuntu:
New
Bug description:
During current snapd autopkgtest, a failure can be observed:
https://autopkgtest.ubuntu.com/results/autopkgtest-
impish/impish/amd64/s/snapd/20210907_175258_5451b@/log.gz
error: cannot pack
"/home/gopath/src/github.com/snapcore/snapd/tests/smoke/sandbox/test-snapd-sandbox":
mksquashfs call failed:
-----
libgcc_s.so.1 must be installed for pthread_cancel to work
Parallel mksquashfs: Using 1 processor
Creating 4.0 filesystem on
/home/gopath/src/github.com/snapcore/snapd/tests/smoke/sandbox/test-snapd-sandbox/test-snapd-sandbox_1.0_all.snap,
block size 131072.
-----
error: cannot read snap file: "/var/lib/snapd/snaps/.local-install-136125945"
is not a snap or snapdir
I traced the underlying call to the following:
"/snap/snapd/current/lib/x86_64-linux-gnu/ld-2.23.so" "--library-path"
"/snap/snapd/current/usr/local/lib:/snap/snapd/current/lib/x86_64-linux-gnu:/snap/snapd/current/usr/lib/x86_64-linux-gnu"
"/snap/snapd/current/usr/bin/mksquashfs" asdf asdf.squashfs
(the real call has more arguments, this is a simplified version that
produces the failure)
To observe this, one can create a VM based a cloud image from
https://cloud-images.ubuntu.com/impish/current, then run the above command in
the resulting environment.
Doing so will test against snapd v2.51.4 (12883).
Retesting with edge 2.52+git635.gada2d87 (13323) produces an equivalent
result.
Running a more bland `/snap/snapd/current/usr/bin/mksquashfs asdf
asdf.squashfs` without messing with library paths has mksquashfs behaving as
expected. Also, getting a v2.51.3 snapd seems to behave itself. Updating
from
2.51.3 -> 2.51.4 also works.
One can see a passing mksquashfs by taking libgcc_s.so.1 from hirsute
and placing it in the library path for the above call.
In the working scenario, it appears that libgcc_s is being obtained
from outside of /snap (and also libz). In the failing scenario, this
external copy of libgcc_s is not being loaded (per gdb info sharedlibrary),
but libz still is.
To manage notifications about this bug go to:
https://bugs.launchpad.net/snapd/+bug/1943077/+subscriptions
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