Project Number Date
test_Tails_ISO_stable 5062 01 Sep 2024, 08:43

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 11:8.001 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.
26.482
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.061
And I prepare Tails for memory erasure tests 0.424
When I start a process allocating 128 MiB of memory with a known pattern 7.619
Then patterns cover at least 128 MiB in the guest's memory 4.044

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

When I kill the allocating process 0.345
Then I find very few patterns in the guest's memory after 3 seconds 5.989

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

After features/support/hooks.rb:326 1.462
After features/support/hooks.rb:100 0.000
30.054
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.310
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 3.023

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.893
Then patterns cover at least 99% of the test FS size in the guest's memory 3.536

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

When I umount "/mnt" 7.040
Then I find very few patterns in the guest's memory after 3 seconds 5.835

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 1.983
After features/support/hooks.rb:100 0.000
47.954
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.644
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.032
Then I find very few patterns in the guest's memory 2.960

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

# write cache
When I fill the USB drive with a known pattern 3.159
Then patterns cover at least 75% of the test FS size in the guest's memory 3.633

Pattern coverage: 91.367% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.074
Then I find very few patterns in the guest's memory after 3 seconds 5.748

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

# read cache
When I mount the USB drive again 0.291
And I read the content of the test FS 0.574
Then patterns cover at least 99% of the test FS size in the guest's memory 3.780

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

When I umount the USB drive 0.652
Then I find very few patterns in the guest's memory after 3 seconds 6.951

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

After features/support/hooks.rb:326 0.988
After features/support/hooks.rb:100 0.000
1:14.098
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.208
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.503
Then I find very few patterns in the guest's memory 2.756

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

# write cache
When I fill the USB drive with a known pattern 2.353
Then patterns cover at least 99% of the test FS size in the guest's memory 2.977

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

When I umount the USB drive 1.632
Then I find very few patterns in the guest's memory after 3 seconds 5.456

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

# read cache
When I mount the USB drive again 4.575
And I read the content of the test FS 0.424
Then patterns cover at least 99% of the test FS size in the guest's memory 2.946

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

When I umount the USB drive 0.821
Then I find very few patterns in the guest's memory after 3 seconds 6.054

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

After features/support/hooks.rb:326 0.947
After features/support/hooks.rb:100 0.000
48.803
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.323
And I prepare Tails for memory erasure tests 0.445
When I fill a 128 MiB file with a known pattern on the root filesystem 14.218
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.935
Then patterns cover at least 128 MiB in the guest's memory 3.115

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.750

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

After features/support/hooks.rb:326 3.601
After features/support/hooks.rb:100 0.000
7:20.608
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 6:34.620
And I prepare Tails for memory erasure tests 0.584
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.209
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.180

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.567
After features/support/hooks.rb:100 0.012