Project Number Date
test_Tails_ISO_devel 3356 19 Apr 2024, 12:29

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 10:44.866 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.
19.744
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.101
And I prepare Tails for memory erasure tests 0.949
When I start a process allocating 128 MiB of memory with a known pattern 2.395
Then patterns cover at least 128 MiB in the guest's memory 3.443

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

When I kill the allocating process 0.615
Then I find very few patterns in the guest's memory 4.237

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:305 0.986
After features/support/hooks.rb:89 0.000
23.884
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.556
And I prepare Tails for memory erasure tests 0.670
And I find very few patterns in the guest's memory 4.108

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.812
Then patterns cover at least 99% of the test FS size in the guest's memory 4.066

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

When I umount "/mnt" 0.656
Then I find very few patterns in the guest's memory 4.012

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:305 0.819
After features/support/hooks.rb:89 0.000
47.131
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.738
And I prepare Tails for memory erasure tests 0.595
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.903
Then I find very few patterns in the guest's memory 3.932

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 6.592
Then patterns cover at least 86% of the test FS size in the guest's memory 3.495

Pattern coverage: 88.122% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.857
Then I find very few patterns in the guest's memory 3.966

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# read cache
When I mount the USB drive again 1.444
And I read the content of the test FS 0.703
Then patterns cover at least 99% of the test FS size in the guest's memory 4.137

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

When I umount the USB drive 0.450
Then I find very few patterns in the guest's memory 4.315

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:305 2.747
After features/support/hooks.rb:89 0.000
1:5.950
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.606
And I prepare Tails for memory erasure tests 0.531
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.178
Then I find very few patterns in the guest's memory 3.701

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

# write cache
When I fill the USB drive with a known pattern 1.718
Then patterns cover at least 99% of the test FS size in the guest's memory 3.302

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

When I umount the USB drive 0.695
Then I find very few patterns in the guest's memory 4.302

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

# read cache
When I mount the USB drive again 4.472
And I read the content of the test FS 0.561
Then patterns cover at least 99% of the test FS size in the guest's memory 3.768

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

When I umount the USB drive 1.302
Then I find very few patterns in the guest's memory 3.808

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

After features/support/hooks.rb:305 0.965
After features/support/hooks.rb:89 0.000
49.492
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.044
And I prepare Tails for memory erasure tests 0.770
When I fill a 128 MiB file with a known pattern on the root filesystem 14.155
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.945
Then patterns cover at least 128 MiB in the guest's memory 2.767

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

When I trigger shutdown 0.027
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.765

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

After features/support/hooks.rb:305 3.519
After features/support/hooks.rb:89 0.000
7:18.663
Before features/support/hooks.rb:259 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:32.135
And I prepare Tails for memory erasure tests 0.437
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.817
When I trigger shutdown 0.010
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.245

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:305 3.932
After features/support/hooks.rb:89 0.011