Project Number Date
test_Tails_ISO_stable 5313 04 Dec 2024, 23:21

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 12:25.513 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.
20.885
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.134
And I prepare Tails for memory erasure tests 0.427
When I start a process allocating 128 MiB of memory with a known pattern 2.623
Then patterns cover at least 128 MiB in the guest's memory 3.523

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

When I kill the allocating process 0.262
Then I find very few patterns in the guest's memory after 3 seconds 5.913

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 1.495
After features/support/hooks.rb:100 0.000
24.839
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.470
And I prepare Tails for memory erasure tests 0.482
And I find very few patterns in the guest's memory 3.214

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.074
Then patterns cover at least 99% of the test FS size in the guest's memory 3.254

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

When I umount "/mnt" 0.726
Then I find very few patterns in the guest's memory after 3 seconds 6.616

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 0.799
After features/support/hooks.rb:100 0.000
51.984
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.658
And I prepare Tails for memory erasure tests 0.509
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.388
Then I find very few patterns in the guest's memory 3.806

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.714
Then patterns cover at least 75% of the test FS size in the guest's memory 4.397

Pattern coverage: 89.270% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.369
Then I find very few patterns in the guest's memory after 3 seconds 6.572

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# read cache
When I mount the USB drive again 0.414
And I read the content of the test FS 1.146
Then patterns cover at least 99% of the test FS size in the guest's memory 4.764

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

When I umount the USB drive 0.665
Then I find very few patterns in the guest's memory after 3 seconds 6.575

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 1.020
After features/support/hooks.rb:100 0.000
1:18.266
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.596
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.416
Then I find very few patterns in the guest's memory 3.092

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.865
Then patterns cover at least 99% of the test FS size in the guest's memory 3.476

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

When I umount the USB drive 1.876
Then I find very few patterns in the guest's memory after 3 seconds 6.265

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# read cache
When I mount the USB drive again 5.925
And I read the content of the test FS 1.695
Then patterns cover at least 99% of the test FS size in the guest's memory 3.749

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

When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 6.174

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 0.901
After features/support/hooks.rb:100 0.000
48.912
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.641
And I prepare Tails for memory erasure tests 0.789
When I fill a 128 MiB file with a known pattern on the root filesystem 14.368
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.901
Then patterns cover at least 128 MiB in the guest's memory 2.416

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 20.781

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 3.533
After features/support/hooks.rb:100 0.000
8:40.625
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:53.328
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.557
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.273

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 3.540
After features/support/hooks.rb:100 0.015