Project Number Date
test_Tails_ISO_stable 4928 11 Jul 2024, 12:44

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 12:3.477 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.
26.357
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.291
And I prepare Tails for memory erasure tests 0.665
When I start a process allocating 128 MiB of memory with a known pattern 2.386
Then patterns cover at least 128 MiB in the guest's memory 4.017

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

When I kill the allocating process 4.642
Then I find very few patterns in the guest's memory 4.354

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:326 2.479
After features/support/hooks.rb:100 0.000
26.224
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.362
And I prepare Tails for memory erasure tests 0.820
And I find very few patterns in the guest's memory 4.549

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.167
Then patterns cover at least 99% of the test FS size in the guest's memory 4.538

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

When I umount "/mnt" 0.947
Then I find very few patterns in the guest's memory 4.838

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

After features/support/hooks.rb:326 0.940
After features/support/hooks.rb:100 0.000
48.567
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.399
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.099
Then I find very few patterns in the guest's memory 4.429

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

# write cache
When I fill the USB drive with a known pattern 3.288
Then patterns cover at least 86% of the test FS size in the guest's memory 4.024

Pattern coverage: 90.400% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.970
Then I find very few patterns in the guest's memory 4.760

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

# read cache
When I mount the USB drive again 0.799
And I read the content of the test FS 0.965
Then patterns cover at least 99% of the test FS size in the guest's memory 4.040

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

When I umount the USB drive 0.871
Then I find very few patterns in the guest's memory 4.455

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

After features/support/hooks.rb:326 1.909
After features/support/hooks.rb:100 0.000
1:18.020
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.230
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.840
Then I find very few patterns in the guest's memory 3.757

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.118
Then patterns cover at least 99% of the test FS size in the guest's memory 3.437

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

When I umount the USB drive 2.540
Then I find very few patterns in the guest's memory 3.395

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# read cache
When I mount the USB drive again 6.118
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 3.481

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 2.201
Then I find very few patterns in the guest's memory 4.035

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 0.996
After features/support/hooks.rb:100 0.000
58.661
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.370
And I prepare Tails for memory erasure tests 0.613
When I fill a 128 MiB file with a known pattern on the root filesystem 14.639
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.864
Then patterns cover at least 128 MiB in the guest's memory 3.251

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.887

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:326 3.623
After features/support/hooks.rb:100 0.000
8:5.647
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 7:21.169
And I prepare Tails for memory erasure tests 0.416
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.543
When I trigger shutdown 0.013
And I wait 20 seconds 20.011

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.494

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 3.515
After features/support/hooks.rb:100 0.018