Project Number Date
test_Tails_ISO_stable 5068 04 Sep 2024, 13:39

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 11:59.446 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.
22.396
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 0.545
When I start a process allocating 128 MiB of memory with a known pattern 2.422
Then patterns cover at least 128 MiB in the guest's memory 3.561

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

When I kill the allocating process 1.232
Then I find very few patterns in the guest's memory after 3 seconds 6.038

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 1.426
After features/support/hooks.rb:100 0.000
23.948
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.424
And I prepare Tails for memory erasure tests 0.420
And I find very few patterns in the guest's memory 2.849

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.064
Then patterns cover at least 99% of the test FS size in the guest's memory 3.500

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

When I umount "/mnt" 0.817
Then I find very few patterns in the guest's memory after 3 seconds 5.872

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

After features/support/hooks.rb:326 2.866
After features/support/hooks.rb:100 0.000
52.264
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.679
And I prepare Tails for memory erasure tests 0.636
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.257
Then I find very few patterns in the guest's memory 3.048

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.829
Then patterns cover at least 75% of the test FS size in the guest's memory 4.210

Pattern coverage: 91.985% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.047
Then I find very few patterns in the guest's memory after 3 seconds 6.437

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

# read cache
When I mount the USB drive again 0.492
And I read the content of the test FS 1.120
Then patterns cover at least 99% of the test FS size in the guest's memory 3.841

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

When I umount the USB drive 0.908
Then I find very few patterns in the guest's memory after 3 seconds 6.754

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

After features/support/hooks.rb:326 0.884
After features/support/hooks.rb:100 0.000
1:17.984
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.202
And I prepare Tails for memory erasure tests 0.602
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.662
Then I find very few patterns in the guest's memory 2.804

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.816
Then patterns cover at least 99% of the test FS size in the guest's memory 2.970

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

When I umount the USB drive 1.120
Then I find very few patterns in the guest's memory after 3 seconds 5.487

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# read cache
When I mount the USB drive again 6.335
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 3.357

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

When I umount the USB drive 1.122
Then I find very few patterns in the guest's memory after 3 seconds 6.066

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 1.231
After features/support/hooks.rb:100 0.000
50.676
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.178
And I prepare Tails for memory erasure tests 0.719
When I fill a 128 MiB file with a known pattern on the root filesystem 15.010
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.959
Then patterns cover at least 128 MiB in the guest's memory 3.005

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 20.790

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

After features/support/hooks.rb:326 3.593
After features/support/hooks.rb:100 0.000
8:12.175
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 7:23.705
And I prepare Tails for memory erasure tests 0.498
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.741
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.217

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

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.013