Project Number Date
test_Tails_ISO_devel 3667 28 Jan 2025, 18:04

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 11:55.437 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.
24.454
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.433
And I prepare Tails for memory erasure tests 0.478
When I start a process allocating 128 MiB of memory with a known pattern 2.428
Then patterns cover at least 128 MiB in the guest's memory 3.344

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

When I kill the allocating process 1.868
Then I find very few patterns in the guest's memory after 5 seconds 7.900

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 1.498
After features/support/hooks.rb:100 0.000
26.053
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.061
And I prepare Tails for memory erasure tests 0.400
And I find very few patterns in the guest's memory 2.876

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.105
Then patterns cover at least 99% of the test FS size in the guest's memory 4.010

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

When I umount "/mnt" 0.780
Then I find very few patterns in the guest's memory after 3 seconds 6.817

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 1.011
After features/support/hooks.rb:100 0.000
50.407
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.798
And I prepare Tails for memory erasure tests 0.641
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.159
Then I find very few patterns in the guest's memory 3.572

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

# write cache
When I fill the USB drive with a known pattern 3.119
Then patterns cover at least 75% of the test FS size in the guest's memory 4.153

Pattern coverage: 90.957% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.800
Then I find very few patterns in the guest's memory after 3 seconds 6.201

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

# read cache
When I mount the USB drive again 0.306
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 3.206

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

When I umount the USB drive 0.968
Then I find very few patterns in the guest's memory after 3 seconds 5.973

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

After features/support/hooks.rb:326 0.873
After features/support/hooks.rb:100 0.000
1:13.527
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.035
And I prepare Tails for memory erasure tests 0.516
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.897
Then I find very few patterns in the guest's memory 2.415

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.710
Then patterns cover at least 99% of the test FS size in the guest's memory 2.680

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

When I umount the USB drive 1.234
Then I find very few patterns in the guest's memory after 3 seconds 5.221

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 7.402
And I read the content of the test FS 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 2.922

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

When I umount the USB drive 0.965
Then I find very few patterns in the guest's memory after 3 seconds 5.931

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.934
After features/support/hooks.rb:100 0.000
51.996
Before features/support/hooks.rb:269 0.008
Given I have started Tails from DVD without network and logged in 9.573
And I prepare Tails for memory erasure tests 0.437
When I fill a 128 MiB file with a known pattern on the root filesystem 15.119
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.806
Then patterns cover at least 128 MiB in the guest's memory 4.097

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

When I trigger shutdown 0.024
Then I find very few patterns in the guest's memory after 20 seconds 20.937

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

After features/support/hooks.rb:326 3.612
After features/support/hooks.rb:100 0.000
8:8.997
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 7:21.602
And I prepare Tails for memory erasure tests 0.509
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.880
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.985

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

After features/support/hooks.rb:326 3.954
After features/support/hooks.rb:100 0.016