Project Number Date
test_Tails_ISO_stable 4902 18 Jun 2024, 21:01

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:50.615 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.
22.529
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.153
And I prepare Tails for memory erasure tests 0.526
When I start a process allocating 128 MiB of memory with a known pattern 2.386
Then patterns cover at least 128 MiB in the guest's memory 4.279

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

When I kill the allocating process 1.746
Then I find very few patterns in the guest's memory 5.437

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 1.162
After features/support/hooks.rb:100 0.000
27.988
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.479
And I prepare Tails for memory erasure tests 0.654
And I find very few patterns in the guest's memory 4.963

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.298
Then patterns cover at least 99% of the test FS size in the guest's memory 4.264

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

When I umount "/mnt" 0.986
Then I find very few patterns in the guest's memory 4.341

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

After features/support/hooks.rb:326 7.873
After features/support/hooks.rb:100 0.000
48.495
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.849
And I prepare Tails for memory erasure tests 0.624
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.120
Then I find very few patterns in the guest's memory 3.961

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

# write cache
When I fill the USB drive with a known pattern 2.886
Then patterns cover at least 86% of the test FS size in the guest's memory 3.461

Pattern coverage: 91.933% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.720
Then I find very few patterns in the guest's memory 4.217

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

# read cache
When I mount the USB drive again 0.243
And I read the content of the test FS 1.682
Then patterns cover at least 99% of the test FS size in the guest's memory 4.079

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

When I umount the USB drive 0.927
Then I find very few patterns in the guest's memory 4.720

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

After features/support/hooks.rb:326 0.899
After features/support/hooks.rb:100 0.000
1:23.471
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.170
And I prepare Tails for memory erasure tests 0.627
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.763
Then I find very few patterns in the guest's memory 4.325

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.299
Then patterns cover at least 99% of the test FS size in the guest's memory 3.714

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

When I umount the USB drive 3.370
Then I find very few patterns in the guest's memory 4.136

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# read cache
When I mount the USB drive again 6.260
And I read the content of the test FS 1.147
Then patterns cover at least 99% of the test FS size in the guest's memory 3.924

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

When I umount the USB drive 0.840
Then I find very few patterns in the guest's memory 3.889

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 0.887
After features/support/hooks.rb:100 0.000
51.867
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.316
And I prepare Tails for memory erasure tests 0.554
When I fill a 128 MiB file with a known pattern on the root filesystem 16.432
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.819
Then patterns cover at least 128 MiB in the guest's memory 2.974

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

When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.737

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.566
After features/support/hooks.rb:100 0.000
7:56.263
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 7:10.948
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.632
When I trigger shutdown 0.010
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.273

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.572
After features/support/hooks.rb:100 0.014