Project Number Date
test_Tails_ISO_devel 3567 29 Oct 2024, 14:05

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 11:37.859 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.
22.700
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.667
And I prepare Tails for memory erasure tests 0.403
When I start a process allocating 128 MiB of memory with a known pattern 1.215
Then patterns cover at least 128 MiB in the guest's memory 4.696

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

When I kill the allocating process 0.923
Then I find very few patterns in the guest's memory after 3 seconds 6.793

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 0.841
After features/support/hooks.rb:100 0.000
29.676
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.910
And I prepare Tails for memory erasure tests 0.451
And I find very few patterns in the guest's memory 3.750

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.393
Then patterns cover at least 99% of the test FS size in the guest's memory 4.589

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

When I umount "/mnt" 2.638
Then I find very few patterns in the guest's memory after 3 seconds 6.944

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

After features/support/hooks.rb:326 1.738
After features/support/hooks.rb:100 0.000
53.733
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.441
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.200
Then I find very few patterns in the guest's memory 4.038

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.619
Then patterns cover at least 75% of the test FS size in the guest's memory 4.967

Pattern coverage: 87.207% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.083
Then I find very few patterns in the guest's memory after 3 seconds 7.201

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.482
And I read the content of the test FS 0.552
Then patterns cover at least 99% of the test FS size in the guest's memory 4.310

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

When I umount the USB drive 0.646
Then I find very few patterns in the guest's memory after 3 seconds 6.745

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 1.133
After features/support/hooks.rb:100 0.000
1:20.738
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.674
And I prepare Tails for memory erasure tests 0.459
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.839
Then I find very few patterns in the guest's memory 2.553

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.920
Then patterns cover at least 99% of the test FS size in the guest's memory 3.488

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

When I umount the USB drive 2.271
Then I find very few patterns in the guest's memory after 3 seconds 7.080

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 5.532
And I read the content of the test FS 0.601
Then patterns cover at least 99% of the test FS size in the guest's memory 3.508

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

When I umount the USB drive 0.692
Then I find very few patterns in the guest's memory after 3 seconds 6.115

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.971
After features/support/hooks.rb:100 0.000
51.627
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.315
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the root filesystem 16.016
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.368
Then patterns cover at least 128 MiB in the guest's memory 3.328

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

When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 21.163

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

After features/support/hooks.rb:326 3.553
After features/support/hooks.rb:100 0.000
7:39.382
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 6:52.311
And I prepare Tails for memory erasure tests 0.576
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.387
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.092

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

After features/support/hooks.rb:326 3.552
After features/support/hooks.rb:100 0.016