Project Number Date
test_Tails_ISO_stable 4961 22 Jul 2024, 22:38

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 11:8.907 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.
22.546
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.217
And I prepare Tails for memory erasure tests 0.413
When I start a process allocating 128 MiB of memory with a known pattern 3.656
Then patterns cover at least 128 MiB in the guest's memory 3.702

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

When I kill the allocating process 1.825
Then I find very few patterns in the guest's memory 4.730

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 0.706
After features/support/hooks.rb:100 0.000
25.111
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.271
And I prepare Tails for memory erasure tests 0.783
And I find very few patterns in the guest's memory 3.952

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.299
Then patterns cover at least 99% of the test FS size in the guest's memory 3.393

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

When I umount "/mnt" 0.497
Then I find very few patterns in the guest's memory 3.912

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

After features/support/hooks.rb:326 0.694
After features/support/hooks.rb:100 0.000
44.285
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.156
And I prepare Tails for memory erasure tests 0.442
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.017
Then I find very few patterns in the guest's memory 3.834

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

# write cache
When I fill the USB drive with a known pattern 2.396
Then patterns cover at least 86% of the test FS size in the guest's memory 3.345

Pattern coverage: 86.215% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.206
Then I find very few patterns in the guest's memory 3.619

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

# read cache
When I mount the USB drive again 0.268
And I read the content of the test FS 0.839
Then patterns cover at least 99% of the test FS size in the guest's memory 5.214

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

When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory 4.305

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

After features/support/hooks.rb:326 0.815
After features/support/hooks.rb:100 0.000
1:7.678
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.026
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.030
Then I find very few patterns in the guest's memory 3.251

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

# write cache
When I fill the USB drive with a known pattern 2.701
Then patterns cover at least 99% of the test FS size in the guest's memory 2.919

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

When I umount the USB drive 0.958
Then I find very few patterns in the guest's memory 3.492

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

# read cache
When I mount the USB drive again 5.419
And I read the content of the test FS 0.475
Then patterns cover at least 99% of the test FS size in the guest's memory 2.726

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

When I umount the USB drive 0.722
Then I find very few patterns in the guest's memory 3.567

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

After features/support/hooks.rb:326 0.853
After features/support/hooks.rb:100 0.000
52.524
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.274
And I prepare Tails for memory erasure tests 0.377
When I fill a 128 MiB file with a known pattern on the root filesystem 17.991
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.554
Then patterns cover at least 128 MiB in the guest's memory 2.572

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 1.719

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

After features/support/hooks.rb:326 3.540
After features/support/hooks.rb:100 0.000
7:36.760
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 6:51.595
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.614
When I trigger shutdown 0.011
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.172

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

After features/support/hooks.rb:326 3.551
After features/support/hooks.rb:100 0.011