Project Number Date
test_Tails_ISO_20635-greeter-threading-fixes 45 03 Dec 2024, 19:50

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 12:2.274 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.
22.462
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.727
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 1.269
Then patterns cover at least 128 MiB in the guest's memory 3.589

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

When I kill the allocating process 1.888
Then I find very few patterns in the guest's memory after 3 seconds 6.564

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

After features/support/hooks.rb:326 0.906
After features/support/hooks.rb:100 0.000
28.894
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.337
And I prepare Tails for memory erasure tests 0.484
And I find very few patterns in the guest's memory 3.689

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.543
Then patterns cover at least 99% of the test FS size in the guest's memory 4.295

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

When I umount "/mnt" 1.598
Then I find very few patterns in the guest's memory after 3 seconds 7.944

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 0.993
After features/support/hooks.rb:100 0.000
50.240
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.900
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.120
Then I find very few patterns in the guest's memory 3.237

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

# write cache
When I fill the USB drive with a known pattern 4.177
Then patterns cover at least 75% of the test FS size in the guest's memory 3.355

Pattern coverage: 87.605% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.452
Then I find very few patterns in the guest's memory after 3 seconds 5.716

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

# read cache
When I mount the USB drive again 0.416
And I read the content of the test FS 0.612
Then patterns cover at least 99% of the test FS size in the guest's memory 3.177

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

When I umount the USB drive 0.905
Then I find very few patterns in the guest's memory after 3 seconds 6.726

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

After features/support/hooks.rb:326 1.186
After features/support/hooks.rb:100 0.000
1:25.916
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.405
And I prepare Tails for memory erasure tests 0.452
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.169
Then I find very few patterns in the guest's memory 3.526

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.385
Then patterns cover at least 99% of the test FS size in the guest's memory 3.910

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

When I umount the USB drive 1.481
Then I find very few patterns in the guest's memory after 3 seconds 6.447

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 7.136
And I read the content of the test FS 0.421
Then patterns cover at least 99% of the test FS size in the guest's memory 3.656

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

When I umount the USB drive 0.824
Then I find very few patterns in the guest's memory after 3 seconds 6.098

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 1.416
After features/support/hooks.rb:100 0.000
52.948
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.567
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 17.845
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.710
Then patterns cover at least 128 MiB in the guest's memory 3.204

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

When I trigger shutdown 0.048
Then I find very few patterns in the guest's memory after 20 seconds 21.103

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 3.485
After features/support/hooks.rb:100 0.000
8:1.812
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 7:16.201
And I prepare Tails for memory erasure tests 0.788
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.414
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.393

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

After features/support/hooks.rb:326 3.606
After features/support/hooks.rb:100 0.013