Project Number Date
test_Tails_ISO_stable 5221 24 Oct 2024, 20:32

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:40.479 Passed
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
24.179
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.283
And I prepare Tails for memory erasure tests 0.751
When I start a process allocating 128 MiB of memory with a known pattern 2.491
Then patterns cover at least 128 MiB in the guest's memory 4.155

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.343
Then I find very few patterns in the guest's memory after 3 seconds 8.154

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:326 1.358
After features/support/hooks.rb:100 0.000
27.777
Before features/support/hooks.rb:269 0.006
Given I have started Tails from DVD without network and logged in 8.859
And I prepare Tails for memory erasure tests 0.620
And I find very few patterns in the guest's memory 3.970

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.398
Then patterns cover at least 99% of the test FS size in the guest's memory 3.665

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.746
Then I find very few patterns in the guest's memory after 3 seconds 7.516

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 0.968
After features/support/hooks.rb:100 0.000
54.875
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.695
And I prepare Tails for memory erasure tests 0.503
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.390
Then I find very few patterns in the guest's memory 3.805

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.054
Then patterns cover at least 75% of the test FS size in the guest's memory 4.352

Pattern coverage: 88.333% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.274
Then I find very few patterns in the guest's memory after 3 seconds 6.617

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.420
And I read the content of the test FS 0.856
Then patterns cover at least 99% of the test FS size in the guest's memory 4.527

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.811
Then I find very few patterns in the guest's memory after 3 seconds 6.566

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 1.526
After features/support/hooks.rb:100 0.000
1:19.988
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.710
And I prepare Tails for memory erasure tests 0.620
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.759
Then I find very few patterns in the guest's memory 2.677

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.038
Then patterns cover at least 99% of the test FS size in the guest's memory 3.095

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.381
Then I find very few patterns in the guest's memory after 3 seconds 5.665

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 5.024
And I read the content of the test FS 0.451
Then patterns cover at least 99% of the test FS size in the guest's memory 3.293

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.767
Then I find very few patterns in the guest's memory after 3 seconds 6.502

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.980
After features/support/hooks.rb:100 0.000
55.493
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.895
And I prepare Tails for memory erasure tests 0.609
When I fill a 128 MiB file with a known pattern on the root filesystem 18.224
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.620
Then patterns cover at least 128 MiB in the guest's memory 3.222

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.906

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.483
After features/support/hooks.rb:100 0.000
7:38.165
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:52.664
And I prepare Tails for memory erasure tests 1.072
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.144
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.271

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 3.731
After features/support/hooks.rb:100 0.014