The glibc stuff on ppc64le C8S is a little bit wild, as there are two
versions:
```
$ ldconfig -p | grep libc.so
libc.so.6 (libc6,64bit, hwcap: "power9", OS ABI: Linux 3.10.0) => /lib64/glibc-hwcaps/power9/libc-2.28.so
libc.so.6 (libc6,64bit, OS ABI: Linux 3.10.0) => /lib64/libc.so.6
```
and with `/etc/ld.so.cache` present all binaries use the first one:
```
$ ldd /bin/cat
linux-vdso64.so.1 (0x00007fffa8070000)
libc.so.6 => /lib64/glibc-hwcaps/power9/libc-2.28.so (0x00007fffa7e20000)
/lib64/ld64.so.2 (0x00007fffa8090000)
```
However, without the cache the binaries will fall back to `/lib64/libc.so.6`
which breaks tests that use the minimal verity images (like TEST-29),
because we install only the first version (that's shown by `ldd` at
the time the images are created):
```
[ 91.595343] testsuite-29.sh[747]: + portablectl --profile=trusted attach --now --runtime /usr/share/minimal_0.raw minimal-app0
Starting systemd-portabled.service...
[ OK ] Started systemd-portabled.service.
Starting minimal-app0-foo.service...
Starting minimal-app0.service...
[ 104.432217] cat[858]: cat: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
[ 104.435080] cat[857]: cat: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
[FAILED] Failed to start minimal-app0.service.
See 'systemctl status minimal-app0.service' for details.
```
```
$ chroot /var/tmp/systemd-test.nMHPfc/minimal/
/bin/bash: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
```
With the ldconfig's cache it seems to work as expected:
```
$ chroot /var/tmp/systemd-test.gVtYLg/minimal
bash-4.4# cat --version
cat (GNU coreutils) 8.30
...
```
The iscsi-init.service calls `sh` which might, in certain circumstances,
pull in instrumented systemd NSS modules causing `sh` to fail. Let's mitigate
this by pulling in an env file crafted by `create_asan_wrapper()` that
(among others) pre-loads ASan's DSO.
Allows to skip check that ensures units must not be running.
I have a use case that would use reattach, except the orchestrator
is using a non-standard versioning scheme, so image matching cannot
work. As a workaround, need to be able to detach and then attach
manually, without stopping the units to avoid extended downtimes
and loss of FD store.
Let's remove some sleep loops, and instead:
1. Use Type=notify to wait until "resolvectl monitor" successfully
installed its monitor, so that we know that queries enqueued later
will definitely be seen.
2. Use "grep -m1" to watch "journalctl -f" output to wait precisely for
the RR data we want to see, and immediately exit.
This shortens code quite a bit, and should make it more robust.
Otherwise we might read an incomplete log and fail:
```
test_added_after (__main__.ExecutionResumeTest) ... FAIL
test_added_before (__main__.ExecutionResumeTest) ... ok
test_interleaved (__main__.ExecutionResumeTest) ... ok
test_issue_6533 (__main__.ExecutionResumeTest) ... ok
test_no_change (__main__.ExecutionResumeTest) ... ok
test_removal (__main__.ExecutionResumeTest) ... ok
test_swapped (__main__.ExecutionResumeTest) ... ok
======================================================================
FAIL: test_added_after (__main__.ExecutionResumeTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/build/./test/test-exec-deserialization.py", line 152, in test_added_after
self.check_output(expected_output)
File "/build/./test/test-exec-deserialization.py", line 107, in check_output
self.assertEqual(output, expected_output)
AssertionError: 'foo\n' != 'foo\nbar\n'
foo
+ bar
----------------------------------------------------------------------
Ran 7 tests in 27.470s
```
Since open-iscsi 2.1.2 [0] the initiator name should be generated via
a one-time service instead of distro package's post-install scripts.
However, some distros still use this approach even after this patch,
so prefer the already existing initiatorname.iscsi file if it exists.
[0] f37d5b653f
