Project Number Date
test_Tails_ISO_stable 4915 28 Jun 2024, 12:47

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 10:56.118 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.
21.450
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.278
And I prepare Tails for memory erasure tests 0.593
When I start a process allocating 128 MiB of memory with a known pattern 2.518
Then patterns cover at least 128 MiB in the guest's memory 4.343

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

When I kill the allocating process 1.327
Then I find very few patterns in the guest's memory 4.389

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 0.826
After features/support/hooks.rb:100 0.000
24.881
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.559
And I prepare Tails for memory erasure tests 0.455
And I find very few patterns in the guest's memory 4.538

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.779
Then patterns cover at least 99% of the test FS size in the guest's memory 3.703

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

When I umount "/mnt" 0.916
Then I find very few patterns in the guest's memory 3.928

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 0.805
After features/support/hooks.rb:100 0.000
52.982
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.020
And I prepare Tails for memory erasure tests 0.493
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.255
Then I find very few patterns in the guest's memory 4.263

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.341
Then patterns cover at least 86% of the test FS size in the guest's memory 3.424

Pattern coverage: 87.054% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 7.825
Then I find very few patterns in the guest's memory 4.200

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# read cache
When I mount the USB drive again 0.260
And I read the content of the test FS 0.826
Then patterns cover at least 99% of the test FS size in the guest's memory 3.890

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

When I umount the USB drive 0.963
Then I find very few patterns in the guest's memory 4.216

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 0.817
After features/support/hooks.rb:100 0.000
1:10.833
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.155
And I prepare Tails for memory erasure tests 0.686
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.391
Then I find very few patterns in the guest's memory 3.601

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

# write cache
When I fill the USB drive with a known pattern 2.306
Then patterns cover at least 99% of the test FS size in the guest's memory 3.215

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

When I umount the USB drive 1.169
Then I find very few patterns in the guest's memory 3.570

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

# read cache
When I mount the USB drive again 4.802
And I read the content of the test FS 0.571
Then patterns cover at least 99% of the test FS size in the guest's memory 3.022

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

When I umount the USB drive 0.705
Then I find very few patterns in the guest's memory 3.634

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

After features/support/hooks.rb:326 0.835
After features/support/hooks.rb:100 0.000
51.851
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.398
And I prepare Tails for memory erasure tests 0.550
When I fill a 128 MiB file with a known pattern on the root filesystem 16.400
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.895
Then patterns cover at least 128 MiB in the guest's memory 2.712

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.864

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 3.738
After features/support/hooks.rb:100 0.000
7:14.119
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 6:29.788
And I prepare Tails for memory erasure tests 0.419
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.692
When I trigger shutdown 0.010
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.188

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.467
After features/support/hooks.rb:100 0.012