Project Number Date
test_Tails_ISO_stable 5413 23 Jan 2025, 12:25

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 10:59.382 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.
30.908
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.271
And I prepare Tails for memory erasure tests 0.448
When I start a process allocating 128 MiB of memory with a known pattern 4.402
Then patterns cover at least 128 MiB in the guest's memory 8.242

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

When I kill the allocating process 1.352
Then I find very few patterns in the guest's memory after 5 seconds 8.192

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 0.726
After features/support/hooks.rb:100 0.000
24.876
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.205
And I prepare Tails for memory erasure tests 0.457
And I find very few patterns in the guest's memory 3.659

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.055
Then patterns cover at least 99% of the test FS size in the guest's memory 3.200

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

When I umount "/mnt" 0.947
Then I find very few patterns in the guest's memory after 3 seconds 6.349

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

After features/support/hooks.rb:326 0.794
After features/support/hooks.rb:100 0.000
46.581
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.938
And I prepare Tails for memory erasure tests 0.587
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.114
Then I find very few patterns in the guest's memory 3.087

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.524
Then patterns cover at least 75% of the test FS size in the guest's memory 3.684

Pattern coverage: 87.941% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.207
Then I find very few patterns in the guest's memory after 3 seconds 5.793

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.451
Then patterns cover at least 99% of the test FS size in the guest's memory 3.216

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

When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 6.250

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 0.923
After features/support/hooks.rb:100 0.000
1:15.625
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.873
And I prepare Tails for memory erasure tests 0.629
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.884
Then I find very few patterns in the guest's memory 2.537

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

# write cache
When I fill the USB drive with a known pattern 1.735
Then patterns cover at least 99% of the test FS size in the guest's memory 2.656

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

When I umount the USB drive 1.151
Then I find very few patterns in the guest's memory after 3 seconds 5.363

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

# read cache
When I mount the USB drive again 5.738
And I read the content of the test FS 0.376
Then patterns cover at least 99% of the test FS size in the guest's memory 2.767

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

When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 5.223

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

After features/support/hooks.rb:326 0.747
After features/support/hooks.rb:100 0.000
51.159
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.922
And I prepare Tails for memory erasure tests 0.555
When I fill a 128 MiB file with a known pattern on the root filesystem 16.718
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.361
Then patterns cover at least 128 MiB in the guest's memory 2.550

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

When I trigger shutdown 0.023
Then I find very few patterns in the guest's memory after 20 seconds 21.027

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 3.478
After features/support/hooks.rb:100 0.000
7:10.231
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 6:27.126
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.529
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.153

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

After features/support/hooks.rb:326 3.487
After features/support/hooks.rb:100 0.012