Project Number Date
test_Tails_ISO_stable 4977 28 Jul 2024, 12:25

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 11:44.060 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.
21.123
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.771
And I prepare Tails for memory erasure tests 0.373
When I start a process allocating 128 MiB of memory with a known pattern 2.474
Then patterns cover at least 128 MiB in the guest's memory 3.803

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

When I kill the allocating process 1.364
Then I find very few patterns in the guest's memory 4.336

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

After features/support/hooks.rb:326 1.088
After features/support/hooks.rb:100 0.000
30.464
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.987
And I prepare Tails for memory erasure tests 0.475
And I find very few patterns in the guest's memory 5.815

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.696
Then patterns cover at least 99% of the test FS size in the guest's memory 5.188

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

When I umount "/mnt" 0.662
Then I find very few patterns in the guest's memory 7.638

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 1.366
After features/support/hooks.rb:100 0.000
53.188
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.980
And I prepare Tails for memory erasure tests 0.477
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.204
Then I find very few patterns in the guest's memory 4.841

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

# write cache
When I fill the USB drive with a known pattern 7.363
Then patterns cover at least 86% of the test FS size in the guest's memory 4.370

Pattern coverage: 90.412% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.462
Then I find very few patterns in the guest's memory 4.624

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

# read cache
When I mount the USB drive again 0.264
And I read the content of the test FS 0.545
Then patterns cover at least 99% of the test FS size in the guest's memory 4.190

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

When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory 4.175

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

After features/support/hooks.rb:326 1.010
After features/support/hooks.rb:100 0.000
1:15.809
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.649
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.598
Then I find very few patterns in the guest's memory 4.137

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

# write cache
When I fill the USB drive with a known pattern 2.052
Then patterns cover at least 99% of the test FS size in the guest's memory 3.584

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

When I umount the USB drive 0.951
Then I find very few patterns in the guest's memory 3.941

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

# read cache
When I mount the USB drive again 8.007
And I read the content of the test FS 0.536
Then patterns cover at least 99% of the test FS size in the guest's memory 3.626

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

When I umount the USB drive 1.992
Then I find very few patterns in the guest's memory 4.364

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

After features/support/hooks.rb:326 0.961
After features/support/hooks.rb:100 0.000
53.036
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.414
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 16.592
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.503
Then patterns cover at least 128 MiB in the guest's memory 3.265

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

When I trigger shutdown 0.018
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.832

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

After features/support/hooks.rb:326 3.500
After features/support/hooks.rb:100 0.000
7:50.438
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 7:5.178
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.697
When I trigger shutdown 0.012
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 3.029

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 3.671
After features/support/hooks.rb:100 0.014