Project Number Date
test_Tails_ISO_stable 4911 24 Jun 2024, 12:39

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 10:58.289 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.
22.098
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.308
And I prepare Tails for memory erasure tests 0.445
When I start a process allocating 128 MiB of memory with a known pattern 2.319
Then patterns cover at least 128 MiB in the guest's memory 4.034

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

When I kill the allocating process 1.788
Then I find very few patterns in the guest's memory 5.202

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:326 1.076
After features/support/hooks.rb:100 0.000
25.016
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.303
And I prepare Tails for memory erasure tests 0.479
And I find very few patterns in the guest's memory 4.217

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.304
Then patterns cover at least 99% of the test FS size in the guest's memory 4.001

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

When I umount "/mnt" 1.370
Then I find very few patterns in the guest's memory 4.339

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 1.190
After features/support/hooks.rb:100 0.000
46.629
Before features/support/hooks.rb:269 0.006
Given I have started Tails from DVD without network and logged in 8.144
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.205
Then I find very few patterns in the guest's memory 4.239

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.601
Then patterns cover at least 86% of the test FS size in the guest's memory 3.761

Pattern coverage: 91.765% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.602
Then I find very few patterns in the guest's memory 4.087

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# read cache
When I mount the USB drive again 0.240
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 3.814

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

When I umount the USB drive 0.824
Then I find very few patterns in the guest's memory 6.055

Pattern coverage: 0.001% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 2.292
After features/support/hooks.rb:100 0.000
1:18.354
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.271
And I prepare Tails for memory erasure tests 0.412
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.609
Then I find very few patterns in the guest's memory 5.354

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.175
Then patterns cover at least 99% of the test FS size in the guest's memory 3.068

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

When I umount the USB drive 1.179
Then I find very few patterns in the guest's memory 3.593

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# read cache
When I mount the USB drive again 6.312
And I read the content of the test FS 0.398
Then patterns cover at least 99% of the test FS size in the guest's memory 3.157

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

When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory 4.099

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 0.858
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 8.133
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the root filesystem 16.846
# 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 3.452

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.051

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:326 3.515
After features/support/hooks.rb:100 0.000
7:12.984
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 6:28.840
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.460
When I trigger shutdown 0.011
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.210

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 3.530
After features/support/hooks.rb:100 0.012