Project Number Date
test_Tails_ISO_stable 5209 21 Oct 2024, 19:32

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 11:30.292 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.
24.325
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.582
And I prepare Tails for memory erasure tests 0.948
When I start a process allocating 128 MiB of memory with a known pattern 2.554
Then patterns cover at least 128 MiB in the guest's memory 3.821

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

When I kill the allocating process 1.487
Then I find very few patterns in the guest's memory after 3 seconds 6.930

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 1.962
After features/support/hooks.rb:100 0.000
25.554
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.335
And I prepare Tails for memory erasure tests 0.455
And I find very few patterns in the guest's memory 3.706

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.607
Then patterns cover at least 99% of the test FS size in the guest's memory 4.125

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

When I umount "/mnt" 0.514
Then I find very few patterns in the guest's memory after 3 seconds 6.808

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 0.949
After features/support/hooks.rb:100 0.000
49.400
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.179
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.151
Then I find very few patterns in the guest's memory 2.955

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.528
Then patterns cover at least 75% of the test FS size in the guest's memory 3.366

Pattern coverage: 88.532% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.634
Then I find very few patterns in the guest's memory after 3 seconds 6.300

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

# read cache
When I mount the USB drive again 0.210
And I read the content of the test FS 0.817
Then patterns cover at least 99% of the test FS size in the guest's memory 3.831

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

When I umount the USB drive 1.338
Then I find very few patterns in the guest's memory after 3 seconds 6.639

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

After features/support/hooks.rb:326 0.990
After features/support/hooks.rb:100 0.000
1:20.183
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.594
And I prepare Tails for memory erasure tests 0.660
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.845
Then I find very few patterns in the guest's memory 3.180

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.885
Then patterns cover at least 99% of the test FS size in the guest's memory 3.425

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

When I umount the USB drive 0.927
Then I find very few patterns in the guest's memory after 3 seconds 6.146

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 5.677
And I read the content of the test FS 0.456
Then patterns cover at least 99% of the test FS size in the guest's memory 3.520

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

When I umount the USB drive 1.726
Then I find very few patterns in the guest's memory after 3 seconds 6.139

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 0.895
After features/support/hooks.rb:100 0.000
53.277
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.475
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the root filesystem 18.068
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.953
Then patterns cover at least 128 MiB in the guest's memory 3.304

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

When I trigger shutdown 0.057
Then I find very few patterns in the guest's memory after 20 seconds 20.938

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

After features/support/hooks.rb:326 3.510
After features/support/hooks.rb:100 0.000
7:37.551
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:52.086
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.690
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.288

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

After features/support/hooks.rb:326 3.588
After features/support/hooks.rb:100 0.010