Project Number Date
test_Tails_ISO_devel 3682 04 Feb 2025, 17:56

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 11:21.968 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.
23.302
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.877
And I prepare Tails for memory erasure tests 0.664
When I start a process allocating 128 MiB of memory with a known pattern 2.469
Then patterns cover at least 128 MiB in the guest's memory 3.262

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

When I kill the allocating process 1.103
Then I find very few patterns in the guest's memory after 5 seconds 7.924

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

After features/support/hooks.rb:326 0.784
After features/support/hooks.rb:100 0.000
24.183
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.370
And I prepare Tails for memory erasure tests 0.492
And I find very few patterns in the guest's memory 2.728

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.025
Then patterns cover at least 99% of the test FS size in the guest's memory 3.451

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

When I umount "/mnt" 0.634
Then I find very few patterns in the guest's memory after 3 seconds 6.479

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

After features/support/hooks.rb:326 0.856
After features/support/hooks.rb:100 0.000
51.353
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.265
And I prepare Tails for memory erasure tests 0.380
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.076
Then I find very few patterns in the guest's memory 3.558

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

# write cache
When I fill the USB drive with a known pattern 2.991
Then patterns cover at least 75% of the test FS size in the guest's memory 4.019

Pattern coverage: 87.932% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.537
Then I find very few patterns in the guest's memory after 3 seconds 6.440

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

# read cache
When I mount the USB drive again 0.309
And I read the content of the test FS 1.040
Then patterns cover at least 99% of the test FS size in the guest's memory 3.850

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

When I umount the USB drive 1.033
Then I find very few patterns in the guest's memory after 3 seconds 5.849

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

After features/support/hooks.rb:326 0.798
After features/support/hooks.rb:100 0.000
1:17.033
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.033
And I prepare Tails for memory erasure tests 0.378
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.247
Then I find very few patterns in the guest's memory 2.350

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.789
Then patterns cover at least 99% of the test FS size in the guest's memory 2.768

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

When I umount the USB drive 0.975
Then I find very few patterns in the guest's memory after 3 seconds 5.433

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 5.431
And I read the content of the test FS 0.602
Then patterns cover at least 99% of the test FS size in the guest's memory 2.925

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

When I umount the USB drive 0.750
Then I find very few patterns in the guest's memory after 3 seconds 5.347

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 1.378
After features/support/hooks.rb:100 0.000
52.352
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.834
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 18.734
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.241
Then patterns cover at least 128 MiB in the guest's memory 2.391

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.740

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

After features/support/hooks.rb:326 3.518
After features/support/hooks.rb:100 0.000
7:33.743
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:48.435
And I prepare Tails for memory erasure tests 0.966
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.217
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.112

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.515
After features/support/hooks.rb:100 0.011