Project Number Date
test_Tails_ISO_stable 5139 03 Oct 2024, 20:33

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 11:51.972 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.
22.415
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.217
And I prepare Tails for memory erasure tests 0.417
When I start a process allocating 128 MiB of memory with a known pattern 3.693
Then patterns cover at least 128 MiB in the guest's memory 3.896

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

When I kill the allocating process 0.326
Then I find very few patterns in the guest's memory after 3 seconds 5.863

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

After features/support/hooks.rb:326 1.642
After features/support/hooks.rb:100 0.000
24.014
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.278
And I prepare Tails for memory erasure tests 0.404
And I find very few patterns in the guest's memory 2.806

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 1.923
Then patterns cover at least 99% of the test FS size in the guest's memory 3.484

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

When I umount "/mnt" 0.729
Then I find very few patterns in the guest's memory after 3 seconds 6.386

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

After features/support/hooks.rb:326 0.981
After features/support/hooks.rb:100 0.000
51.946
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 10.874
And I prepare Tails for memory erasure tests 0.569
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.060
Then I find very few patterns in the guest's memory 3.501

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

# write cache
When I fill the USB drive with a known pattern 2.532
Then patterns cover at least 75% of the test FS size in the guest's memory 4.449

Pattern coverage: 87.250% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.608
Then I find very few patterns in the guest's memory after 3 seconds 6.674

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

# read cache
When I mount the USB drive again 0.268
And I read the content of the test FS 0.632
Then patterns cover at least 99% of the test FS size in the guest's memory 4.132

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

When I umount the USB drive 0.725
Then I find very few patterns in the guest's memory after 3 seconds 5.916

Pattern coverage: 0.001% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 0.768
After features/support/hooks.rb:100 0.000
1:27.709
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 21.028
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.462
Then I find very few patterns in the guest's memory 2.472

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

# write cache
When I fill the USB drive with a known pattern 1.950
Then patterns cover at least 99% of the test FS size in the guest's memory 2.924

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

When I umount the USB drive 2.119
Then I find very few patterns in the guest's memory after 3 seconds 6.028

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

# read cache
When I mount the USB drive again 5.830
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 3.604

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

When I umount the USB drive 1.089
Then I find very few patterns in the guest's memory after 3 seconds 5.405

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

After features/support/hooks.rb:326 0.889
After features/support/hooks.rb:100 0.000
53.531
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.270
And I prepare Tails for memory erasure tests 0.495
When I fill a 128 MiB file with a known pattern on the root filesystem 15.805
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.342
Then patterns cover at least 128 MiB in the guest's memory 2.750

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.852

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 3.479
After features/support/hooks.rb:100 0.000
7:52.355
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 7:6.249
And I prepare Tails for memory erasure tests 0.385
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.386
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.322

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

After features/support/hooks.rb:326 3.502
After features/support/hooks.rb:100 0.013