Project Number Date
test_Tails_ISO_devel 3643 10 Jan 2025, 17:52

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 10:56.394 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.
21.845
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.081
And I prepare Tails for memory erasure tests 0.503
When I start a process allocating 128 MiB of memory with a known pattern 3.030
Then patterns cover at least 128 MiB in the guest's memory 3.631

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

When I kill the allocating process 0.964
Then I find very few patterns in the guest's memory after 3 seconds 5.633

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:326 0.762
After features/support/hooks.rb:100 0.000
22.225
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.028
And I prepare Tails for memory erasure tests 0.440
And I find very few patterns in the guest's memory 2.772

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.751
Then patterns cover at least 99% of the test FS size in the guest's memory 3.036

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

When I umount "/mnt" 0.490
Then I find very few patterns in the guest's memory after 3 seconds 5.703

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

After features/support/hooks.rb:326 0.663
After features/support/hooks.rb:100 0.000
44.911
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.968
And I prepare Tails for memory erasure tests 0.426
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.944
Then I find very few patterns in the guest's memory 2.940

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.336
Then patterns cover at least 75% of the test FS size in the guest's memory 3.099

Pattern coverage: 83.897% (107 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.161
Then I find very few patterns in the guest's memory after 3 seconds 5.688

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# read cache
When I mount the USB drive again 0.338
And I read the content of the test FS 0.461
Then patterns cover at least 99% of the test FS size in the guest's memory 3.579

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

When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 6.521

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:326 1.546
After features/support/hooks.rb:100 0.000
1:12.901
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.977
And I prepare Tails for memory erasure tests 0.405
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.529
Then I find very few patterns in the guest's memory 2.459

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.302
Then patterns cover at least 99% of the test FS size in the guest's memory 4.061

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

When I umount the USB drive 1.101
Then I find very few patterns in the guest's memory after 3 seconds 5.407

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# read cache
When I mount the USB drive again 5.303
And I read the content of the test FS 0.499
Then patterns cover at least 99% of the test FS size in the guest's memory 2.794

Pattern coverage: 106.116% (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 after 3 seconds 5.409

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 0.792
After features/support/hooks.rb:100 0.000
50.541
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.891
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the root filesystem 17.091
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.931
Then patterns cover at least 128 MiB in the guest's memory 2.456

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.705

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

After features/support/hooks.rb:326 3.481
After features/support/hooks.rb:100 0.000
7:23.969
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 6:37.011
And I prepare Tails for memory erasure tests 0.843
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.987
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.115

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 3.486
After features/support/hooks.rb:100 0.011