Package: unattended-upgrades Version: 2.4 Followup-For: Bug #960966 Control: severity -1 important
I noticed this 100% CPU usage in unattended-upgrades too.
When I strace the process, it seems to be repeatedly stat()ing all the
files that it expects to be in /var/lib/apt/lists/ over and over again,
including both the files that exist and ones that do not exist because
apt doesn't write empty files to disk.
$ sudo strace -p 1359212 |& grep
deb.debian.org_debian_dists_testing_main_source_Sources
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
stat("/var/lib/apt/lists/deb.debian.org_debian_dists_testing_main_source_Sources",
{st_mode=S_IFREG|0644, st_size=42687296, ...}) = 0
...
--
bye,
pabs
https://wiki.debian.org/PaulWise
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