Project Number Date
test_Tails_ISO_stable 5165 09 Oct 2024, 21:30

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 10:53.457 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.
22.898
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.155
And I prepare Tails for memory erasure tests 0.389
When I start a process allocating 128 MiB of memory with a known pattern 2.373
Then patterns cover at least 128 MiB in the guest's memory 3.971

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

When I kill the allocating process 0.957
Then I find very few patterns in the guest's memory after 3 seconds 7.052

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:326 0.897
After features/support/hooks.rb:100 0.000
25.344
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.913
And I prepare Tails for memory erasure tests 0.419
And I find very few patterns in the guest's memory 3.879

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.132
Then patterns cover at least 99% of the test FS size in the guest's memory 4.184

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

When I umount "/mnt" 0.872
Then I find very few patterns in the guest's memory after 3 seconds 5.942

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

After features/support/hooks.rb:326 1.041
After features/support/hooks.rb:100 0.000
46.504
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.805
And I prepare Tails for memory erasure tests 0.384
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.121
Then I find very few patterns in the guest's memory 3.295

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

# write cache
When I fill the USB drive with a known pattern 2.587
Then patterns cover at least 75% of the test FS size in the guest's memory 3.732

Pattern coverage: 88.128% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.512
Then I find very few patterns in the guest's memory after 3 seconds 6.037

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

# read cache
When I mount the USB drive again 0.235
And I read the content of the test FS 0.569
Then patterns cover at least 99% of the test FS size in the guest's memory 3.406

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

When I umount the USB drive 0.657
Then I find very few patterns in the guest's memory after 3 seconds 6.158

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

After features/support/hooks.rb:326 0.906
After features/support/hooks.rb:100 0.000
1:11.489
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.870
And I prepare Tails for memory erasure tests 0.423
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.911
Then I find very few patterns in the guest's memory 2.705

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.696
Then patterns cover at least 99% of the test FS size in the guest's memory 3.127

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

When I umount the USB drive 0.855
Then I find very few patterns in the guest's memory after 3 seconds 5.594

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 5.542
And I read the content of the test FS 0.508
Then patterns cover at least 99% of the test FS size in the guest's memory 2.887

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.794
Then I find very few patterns in the guest's memory after 3 seconds 5.573

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.822
After features/support/hooks.rb:100 0.000
49.731
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.804
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 16.154
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.981
Then patterns cover at least 128 MiB in the guest's memory 2.623

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 20.754

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 3.505
After features/support/hooks.rb:100 0.000
7:17.489
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 6:30.254
And I prepare Tails for memory erasure tests 1.324
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.622
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.271

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 3.755
After features/support/hooks.rb:100 0.011