Project Number Date
test_Tails_ISO_stable 5057 29 Aug 2024, 12:15

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 11:43.539 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.
26.153
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.847
And I prepare Tails for memory erasure tests 0.547
When I start a process allocating 128 MiB of memory with a known pattern 3.434
Then patterns cover at least 128 MiB in the guest's memory 4.809

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

When I kill the allocating process 2.717
Then I find very few patterns in the guest's memory after 3 seconds 5.797

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

After features/support/hooks.rb:326 1.551
After features/support/hooks.rb:100 0.000
26.968
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.103
And I prepare Tails for memory erasure tests 0.401
And I find very few patterns in the guest's memory 3.050

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.734
Then patterns cover at least 99% of the test FS size in the guest's memory 3.789

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

When I umount "/mnt" 1.214
Then I find very few patterns in the guest's memory after 3 seconds 6.673

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 1.431
After features/support/hooks.rb:100 0.000
51.413
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.593
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.469
Then I find very few patterns in the guest's memory 3.661

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

# write cache
When I fill the USB drive with a known pattern 3.160
Then patterns cover at least 75% of the test FS size in the guest's memory 4.262

Pattern coverage: 88.594% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.780
Then I find very few patterns in the guest's memory after 3 seconds 6.529

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

# read cache
When I mount the USB drive again 0.435
And I read the content of the test FS 0.581
Then patterns cover at least 99% of the test FS size in the guest's memory 4.052

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

When I umount the USB drive 0.804
Then I find very few patterns in the guest's memory after 3 seconds 6.646

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

After features/support/hooks.rb:326 1.714
After features/support/hooks.rb:100 0.000
1:18.747
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.196
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.451
Then I find very few patterns in the guest's memory 2.734

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.982
Then patterns cover at least 99% of the test FS size in the guest's memory 2.895

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

When I umount the USB drive 1.024
Then I find very few patterns in the guest's memory after 3 seconds 5.546

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 6.524
And I read the content of the test FS 0.724
Then patterns cover at least 99% of the test FS size in the guest's memory 2.808

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

When I umount the USB drive 0.671
Then I find very few patterns in the guest's memory after 3 seconds 5.725

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.803
After features/support/hooks.rb:100 0.000
53.352
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.207
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 18.473
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.144
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 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.862

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 3.502
After features/support/hooks.rb:100 0.000
7:46.903
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 7:4.485
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.731
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.219

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

After features/support/hooks.rb:326 3.540
After features/support/hooks.rb:100 0.013