[PATCH] [act] UBUNTU: SAUCE: ubuntu_kernel_selftests: disable memory-hotplug

[Paolo Pisati]

On Wed, Jun 23, 2021 at 3:24 PM Krzysztof Kozlowski <
krzysztof.kozlowski at canonical.com> wrote:

>
> Why the filesystem fills up? Journald should have strict limits for its
> logs... unless we keep logging it to a file and ignore any journald
> MaxUse/KeepFree?
>

/var/log/journald is about 1GB, the rest are kernel.log and syslog - 10G is
the default openstack fs size:

 $ df -h /
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1       9.7G  9.7G     0 100% /

$ du -hx --max-depth=1 /
9.6G    /
5.3G    /var
2.2G    /usr
2.1G    /home
...

-rw-r----- 1 syslog adm  1948643300 Jun 23 09:01 /var/log/kern.log
-rw-r----- 1 syslog adm  1949290433 Jun 23 14:12 /var/log/syslog

$ du -h --max-depth=1 /var/log/journal
970M    journal

$ tail -n10 /var/log/syslog
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949015] flags:
0x3ffff80000202a(referenced|dirty|active|private)
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949018] raw:
003ffff80000202a c00000000d657960 c00000000d657960 c00000000bb66068
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949020] raw:
0000000000008000 c00000001653c5d8 00000003ffffffff c00000000dc43000
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949022] page dumped
because: migration failure
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949023] pages's
memcg:c00000000dc43000
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949057] migrating pfn
179a failed ret:1
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949059]
page:000000000f1e9b6f refcount:3 mapcount:0 mapping:00000000652d2e2f
index:0x8000 pfn:0x179a
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949061]
aops:def_blk_aops ino:fc00001
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949063] flags:
0x3ffff80000202a(referenced|dirty|active|private)
Jun 23 09:00:21 ppisati-ppc64el-large kernel: [ 1293.949066] raw:
003ffff80000202a c00000000d657960 c00000000d657960 c00000000bb66068
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