Project Number Date
test_Tails_ISO_stable 5117 25 Sep 2024, 08:53

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 11:54.605 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.
21.383
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.629
And I prepare Tails for memory erasure tests 0.517
When I start a process allocating 128 MiB of memory with a known pattern 2.299
Then patterns cover at least 128 MiB in the guest's memory 3.747

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

When I kill the allocating process 0.279
Then I find very few patterns in the guest's memory after 3 seconds 5.910

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

After features/support/hooks.rb:326 0.911
After features/support/hooks.rb:100 0.000
28.675
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.968
And I prepare Tails for memory erasure tests 0.476
And I find very few patterns in the guest's memory 3.780

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.673
Then patterns cover at least 99% of the test FS size in the guest's memory 4.792

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

When I umount "/mnt" 0.693
Then I find very few patterns in the guest's memory after 3 seconds 7.290

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 1.893
After features/support/hooks.rb:100 0.000
53.829
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.084
And I prepare Tails for memory erasure tests 0.536
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.388
Then I find very few patterns in the guest's memory 3.495

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.329
Then patterns cover at least 75% of the test FS size in the guest's memory 6.094

Pattern coverage: 87.262% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.318
Then I find very few patterns in the guest's memory after 3 seconds 6.801

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 0.440
And I read the content of the test FS 0.859
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 0.601
Then I find very few patterns in the guest's memory after 3 seconds 6.569

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 2.610
After features/support/hooks.rb:100 0.000
1:22.253
Before features/support/hooks.rb:269 0.008
Given I have started Tails from DVD without network and logged in 8.603
And I prepare Tails for memory erasure tests 0.554
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.402
Then I find very few patterns in the guest's memory 3.099

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.136
Then patterns cover at least 99% of the test FS size in the guest's memory 3.836

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

When I umount the USB drive 0.990
Then I find very few patterns in the guest's memory after 3 seconds 6.663

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 5.879
And I read the content of the test FS 1.291
Then patterns cover at least 99% of the test FS size in the guest's memory 3.664

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

When I umount the USB drive 1.043
Then I find very few patterns in the guest's memory after 3 seconds 6.087

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 2.550
After features/support/hooks.rb:100 0.000
53.605
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.753
And I prepare Tails for memory erasure tests 0.549
When I fill a 128 MiB file with a known pattern on the root filesystem 17.211
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.761
Then patterns cover at least 128 MiB in the guest's memory 3.540

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 20.774

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

After features/support/hooks.rb:326 3.531
After features/support/hooks.rb:100 0.000
7:54.858
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 7:8.071
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.985
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.353

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 3.684
After features/support/hooks.rb:100 0.012