Project Number Date
test_Tails_ISO_stable 5155 07 Oct 2024, 19:32

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 11:59.115 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.
22.308
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.092
And I prepare Tails for memory erasure tests 0.439
When I start a process allocating 128 MiB of memory with a known pattern 2.609
Then patterns cover at least 128 MiB in the guest's memory 3.609

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

When I kill the allocating process 1.573
Then I find very few patterns in the guest's memory after 3 seconds 5.984

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

After features/support/hooks.rb:326 1.412
After features/support/hooks.rb:100 0.000
24.834
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.271
And I prepare Tails for memory erasure tests 0.409
And I find very few patterns in the guest's memory 2.994

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.886
Then patterns cover at least 99% of the test FS size in the guest's memory 4.332

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

When I umount "/mnt" 0.969
Then I find very few patterns in the guest's memory after 3 seconds 5.969

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

After features/support/hooks.rb:326 0.917
After features/support/hooks.rb:100 0.000
54.203
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.279
And I prepare Tails for memory erasure tests 0.414
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.137
Then I find very few patterns in the guest's memory 5.721

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.453
Then patterns cover at least 75% of the test FS size in the guest's memory 4.273

Pattern coverage: 87.188% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.526
Then I find very few patterns in the guest's memory after 3 seconds 6.613

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.397
And I read the content of the test FS 1.385
Then patterns cover at least 99% of the test FS size in the guest's memory 3.879

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

When I umount the USB drive 0.685
Then I find very few patterns in the guest's memory after 3 seconds 6.434

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 0.854
After features/support/hooks.rb:100 0.000
1:20.411
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.849
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.018
Then I find very few patterns in the guest's memory 2.507

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

# write cache
When I fill the USB drive with a known pattern 2.453
Then patterns cover at least 99% of the test FS size in the guest's memory 3.407

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

When I umount the USB drive 1.018
Then I find very few patterns in the guest's memory after 3 seconds 6.776

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

# read cache
When I mount the USB drive again 5.014
And I read the content of the test FS 0.433
Then patterns cover at least 99% of the test FS size in the guest's memory 3.533

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

When I umount the USB drive 0.730
Then I find very few patterns in the guest's memory after 3 seconds 6.229

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

After features/support/hooks.rb:326 0.929
After features/support/hooks.rb:100 0.000
51.905
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.208
And I prepare Tails for memory erasure tests 0.615
When I fill a 128 MiB file with a known pattern on the root filesystem 17.269
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.014
Then patterns cover at least 128 MiB in the guest's memory 2.718

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 21.064

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 3.484
After features/support/hooks.rb:100 0.000
8:5.451
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 7:19.558
And I prepare Tails for memory erasure tests 0.533
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.945
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.400

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

After features/support/hooks.rb:326 3.558
After features/support/hooks.rb:100 0.010