Project Number Date
test_Tails_ISO_stable 4651 05 Feb 2024, 12:24

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 11:1.704 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.
17.824
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.313
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 1.297
Then patterns cover at least 128 MiB in the guest's memory 3.821

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

When I kill the allocating process 0.211
Then I find very few patterns in the guest's memory 3.754

Pattern coverage: 0.000% (0 MiB out of 814 MiB reference memory)

After features/support/hooks.rb:291 2.189
After features/support/hooks.rb:75 0.000
22.505
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.931
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 3.803

Pattern coverage: 0.000% (0 MiB out of 830 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.371
Then patterns cover at least 99% of the test FS size in the guest's memory 3.712

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

When I umount "/mnt" 0.825
Then I find very few patterns in the guest's memory 4.423

Pattern coverage: 0.000% (0 MiB out of 830 MiB reference memory)

After features/support/hooks.rb:291 1.808
After features/support/hooks.rb:75 0.000
42.042
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.016
And I prepare Tails for memory erasure tests 0.474
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.912
Then I find very few patterns in the guest's memory 4.658

Pattern coverage: 0.000% (0 MiB out of 842 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.528
Then patterns cover at least 86% of the test FS size in the guest's memory 4.430

Pattern coverage: 91.300% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.580
Then I find very few patterns in the guest's memory 4.509

Pattern coverage: 0.000% (0 MiB out of 842 MiB reference memory)

# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.503
Then patterns cover at least 99% of the test FS size in the guest's memory 3.844

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

When I umount the USB drive 0.736
Then I find very few patterns in the guest's memory 3.608

Pattern coverage: 0.000% (0 MiB out of 842 MiB reference memory)

After features/support/hooks.rb:291 1.015
After features/support/hooks.rb:75 0.000
1:2.064
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.625
And I prepare Tails for memory erasure tests 0.564
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.056
Then I find very few patterns in the guest's memory 3.573

Pattern coverage: 0.000% (0 MiB out of 835 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.605
Then patterns cover at least 99% of the test FS size in the guest's memory 2.793

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

When I umount the USB drive 0.650
Then I find very few patterns in the guest's memory 3.778

Pattern coverage: 0.000% (0 MiB out of 835 MiB reference memory)

# read cache
When I mount the USB drive again 3.403
And I read the content of the test FS 2.072
Then patterns cover at least 99% of the test FS size in the guest's memory 3.500

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

When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory 3.944

Pattern coverage: 0.000% (0 MiB out of 835 MiB reference memory)

After features/support/hooks.rb:291 1.030
After features/support/hooks.rb:75 0.000
51.489
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.763
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 16.419
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.094
Then patterns cover at least 128 MiB in the guest's memory 3.468

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

When I trigger shutdown 0.464
And I wait 20 seconds 20.000

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.838

Pattern coverage: 0.000% (0 MiB out of 811 MiB reference memory)

After features/support/hooks.rb:291 3.544
After features/support/hooks.rb:75 0.000
7:45.778
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:2.278
And I prepare Tails for memory erasure tests 0.416
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.829
When I trigger shutdown 0.085
And I wait 20 seconds 20.012

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.156

Pattern coverage: 0.000% (0 MiB out of 831 MiB reference memory)

After features/support/hooks.rb:291 3.571
After features/support/hooks.rb:75 0.015