Project Number Date
test_Tails_ISO_stable 5201 20 Oct 2024, 12:26

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 11:26.300 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.
23.491
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.268
And I prepare Tails for memory erasure tests 0.427
When I start a process allocating 128 MiB of memory with a known pattern 2.454
Then patterns cover at least 128 MiB in the guest's memory 4.515

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

When I kill the allocating process 1.068
Then I find very few patterns in the guest's memory after 3 seconds 6.757

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

After features/support/hooks.rb:326 0.743
After features/support/hooks.rb:100 0.000
27.272
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.191
And I prepare Tails for memory erasure tests 0.507
And I find very few patterns in the guest's memory 5.502

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.764
Then patterns cover at least 99% of the test FS size in the guest's memory 4.121

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

When I umount "/mnt" 0.490
Then I find very few patterns in the guest's memory after 3 seconds 6.694

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 0.871
After features/support/hooks.rb:100 0.000
53.205
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.073
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.163
Then I find very few patterns in the guest's memory 3.827

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

# write cache
When I fill the USB drive with a known pattern 3.373
Then patterns cover at least 75% of the test FS size in the guest's memory 4.538

Pattern coverage: 89.175% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.503
Then I find very few patterns in the guest's memory after 3 seconds 7.229

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

# read cache
When I mount the USB drive again 0.760
And I read the content of the test FS 1.825
Then patterns cover at least 99% of the test FS size in the guest's memory 3.836

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

When I umount the USB drive 0.974
Then I find very few patterns in the guest's memory after 3 seconds 6.631

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

After features/support/hooks.rb:326 0.806
After features/support/hooks.rb:100 0.000
1:22.227
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.759
And I prepare Tails for memory erasure tests 0.513
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.419
Then I find very few patterns in the guest's memory 3.202

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

# write cache
When I fill the USB drive with a known pattern 2.157
Then patterns cover at least 99% of the test FS size in the guest's memory 4.042

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

When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory after 3 seconds 6.189

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

# read cache
When I mount the USB drive again 6.006
And I read the content of the test FS 0.553
Then patterns cover at least 99% of the test FS size in the guest's memory 3.707

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

When I umount the USB drive 0.977
Then I find very few patterns in the guest's memory after 3 seconds 5.902

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

After features/support/hooks.rb:326 0.772
After features/support/hooks.rb:100 0.000
51.212
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.238
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the root filesystem 16.222
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.178
Then patterns cover at least 128 MiB in the guest's memory 3.259

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 20.907

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

After features/support/hooks.rb:326 3.592
After features/support/hooks.rb:100 0.000
7:28.890
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 6:42.017
And I prepare Tails for memory erasure tests 1.160
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.320
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.374

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 3.567
After features/support/hooks.rb:100 0.016