Project Number Date
test_Tails_ISO_stable 5126 30 Sep 2024, 12:52

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 12:31.746 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.
28.262
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.854
And I prepare Tails for memory erasure tests 0.947
When I start a process allocating 128 MiB of memory with a known pattern 3.993
Then patterns cover at least 128 MiB in the guest's memory 5.368

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

When I kill the allocating process 1.467
Then I find very few patterns in the guest's memory after 3 seconds 6.631

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:326 0.887
After features/support/hooks.rb:100 0.000
26.475
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.039
And I prepare Tails for memory erasure tests 0.515
And I find very few patterns in the guest's memory 3.623

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.241
Then patterns cover at least 99% of the test FS size in the guest's memory 4.441

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

When I umount "/mnt" 0.932
Then I find very few patterns in the guest's memory after 3 seconds 6.680

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 0.825
After features/support/hooks.rb:100 0.000
50.589
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.344
And I prepare Tails for memory erasure tests 0.660
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.254
Then I find very few patterns in the guest's memory 3.626

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.979
Then patterns cover at least 75% of the test FS size in the guest's memory 3.416

Pattern coverage: 91.147% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.829
Then I find very few patterns in the guest's memory after 3 seconds 5.739

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 1.066
And I read the content of the test FS 1.236
Then patterns cover at least 99% of the test FS size in the guest's memory 3.661

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

When I umount the USB drive 1.060
Then I find very few patterns in the guest's memory after 3 seconds 6.711

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 1.390
After features/support/hooks.rb:100 0.000
1:22.178
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.127
And I prepare Tails for memory erasure tests 0.495
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.347
Then I find very few patterns in the guest's memory 2.441

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

# write cache
When I fill the USB drive with a known pattern 2.221
Then patterns cover at least 99% of the test FS size in the guest's memory 2.516

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

When I umount the USB drive 1.298
Then I find very few patterns in the guest's memory after 3 seconds 5.425

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

# read cache
When I mount the USB drive again 8.171
And I read the content of the test FS 1.874
Then patterns cover at least 99% of the test FS size in the guest's memory 3.827

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

When I umount the USB drive 1.027
Then I find very few patterns in the guest's memory after 3 seconds 6.401

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

After features/support/hooks.rb:326 0.963
After features/support/hooks.rb:100 0.000
55.857
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 9.006
And I prepare Tails for memory erasure tests 0.625
When I fill a 128 MiB file with a known pattern on the root filesystem 18.964
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.258
Then patterns cover at least 128 MiB in the guest's memory 3.674

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.314

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 3.616
After features/support/hooks.rb:100 0.000
8:28.382
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:43.656
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.981
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.316

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 3.545
After features/support/hooks.rb:100 0.011