Project Number Date
test_Tails_ISO_stable 5406 21 Jan 2025, 08:33

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 11:4.627 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.
21.458
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.973
And I prepare Tails for memory erasure tests 0.386
When I start a process allocating 128 MiB of memory with a known pattern 2.305
Then patterns cover at least 128 MiB in the guest's memory 3.194

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

When I kill the allocating process 1.902
Then I find very few patterns in the guest's memory after 3 seconds 5.695

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

After features/support/hooks.rb:326 0.798
After features/support/hooks.rb:100 0.000
23.408
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.819
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 2.866

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.285
Then patterns cover at least 99% of the test FS size in the guest's memory 3.078

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

When I umount "/mnt" 1.239
Then I find very few patterns in the guest's memory after 3 seconds 5.714

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 0.769
After features/support/hooks.rb:100 0.000
48.174
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.899
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.952
Then I find very few patterns in the guest's memory 3.450

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.449
Then patterns cover at least 75% of the test FS size in the guest's memory 3.870

Pattern coverage: 86.245% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.300
Then I find very few patterns in the guest's memory after 3 seconds 7.139

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# read cache
When I mount the USB drive again 0.316
And I read the content of the test FS 0.597
Then patterns cover at least 99% of the test FS size in the guest's memory 3.886

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

When I umount the USB drive 0.442
Then I find very few patterns in the guest's memory after 3 seconds 6.489

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:326 0.862
After features/support/hooks.rb:100 0.000
1:18.239
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.930
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.412
Then I find very few patterns in the guest's memory 2.752

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.325
Then patterns cover at least 99% of the test FS size in the guest's memory 2.607

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

When I umount the USB drive 0.860
Then I find very few patterns in the guest's memory after 3 seconds 5.938

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 6.647
And I read the content of the test FS 0.494
Then patterns cover at least 99% of the test FS size in the guest's memory 3.360

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

When I umount the USB drive 0.601
Then I find very few patterns in the guest's memory after 3 seconds 5.894

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 0.864
After features/support/hooks.rb:100 0.000
49.347
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.851
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the root filesystem 16.254
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.886
Then patterns cover at least 128 MiB in the guest's memory 2.267

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

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.687

Pattern coverage: 0.000% (0 MiB out of 920 MiB reference memory)

After features/support/hooks.rb:326 3.459
After features/support/hooks.rb:100 0.000
7:24.000
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 6:38.110
And I prepare Tails for memory erasure tests 1.089
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.673
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.109

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 3.538
After features/support/hooks.rb:100 0.009