Project Number Date
test_Tails_ISO_stable 5146 06 Oct 2024, 08:34

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 11:27.728 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.
26.400
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.082
And I prepare Tails for memory erasure tests 0.456
When I start a process allocating 128 MiB of memory with a known pattern 6.977
Then patterns cover at least 128 MiB in the guest's memory 3.572

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

When I kill the allocating process 1.237
Then I find very few patterns in the guest's memory after 3 seconds 6.074

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

After features/support/hooks.rb:326 0.875
After features/support/hooks.rb:100 0.000
25.716
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.599
And I prepare Tails for memory erasure tests 0.536
And I find very few patterns in the guest's memory 2.841

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.260
Then patterns cover at least 99% of the test FS size in the guest's memory 3.274

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

When I umount "/mnt" 1.336
Then I find very few patterns in the guest's memory after 3 seconds 5.866

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 0.927
After features/support/hooks.rb:100 0.000
49.326
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.061
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.078
Then I find very few patterns in the guest's memory 3.016

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.344
Then patterns cover at least 75% of the test FS size in the guest's memory 4.055

Pattern coverage: 90.874% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.606
Then I find very few patterns in the guest's memory after 3 seconds 6.707

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 0.243
And I read the content of the test FS 0.508
Then patterns cover at least 99% of the test FS size in the guest's memory 4.118

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

When I umount the USB drive 0.644
Then I find very few patterns in the guest's memory after 3 seconds 6.538

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.819
After features/support/hooks.rb:100 0.000
1:17.956
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.119
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.246
Then I find very few patterns in the guest's memory 3.050

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.624
Then patterns cover at least 99% of the test FS size in the guest's memory 3.704

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

When I umount the USB drive 1.446
Then I find very few patterns in the guest's memory after 3 seconds 6.049

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# read cache
When I mount the USB drive again 5.425
And I read the content of the test FS 0.505
Then patterns cover at least 99% of the test FS size in the guest's memory 3.224

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

When I umount the USB drive 0.695
Then I find very few patterns in the guest's memory after 3 seconds 5.415

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 0.775
After features/support/hooks.rb:100 0.000
51.053
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.249
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 15.963
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.047
Then patterns cover at least 128 MiB in the guest's memory 2.566

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.744

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

After features/support/hooks.rb:326 3.568
After features/support/hooks.rb:100 0.000
7:37.274
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 6:50.879
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.663
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.339

Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)

After features/support/hooks.rb:326 3.754
After features/support/hooks.rb:100 0.011