Project Number Date
test_Tails_ISO_stable 4886 12 Jun 2024, 18:48

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 12:18.522 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.
26.594
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.446
And I prepare Tails for memory erasure tests 0.417
When I start a process allocating 128 MiB of memory with a known pattern 2.406
Then patterns cover at least 128 MiB in the guest's memory 7.471

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

When I kill the allocating process 1.118
Then I find very few patterns in the guest's memory 6.734

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

After features/support/hooks.rb:320 1.224
After features/support/hooks.rb:100 0.000
38.392
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.141
And I prepare Tails for memory erasure tests 0.469
And I find very few patterns in the guest's memory 8.142

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.989
Then patterns cover at least 99% of the test FS size in the guest's memory 8.494

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

When I umount "/mnt" 0.869
Then I find very few patterns in the guest's memory 8.285

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

After features/support/hooks.rb:320 0.943
After features/support/hooks.rb:100 0.000
1:0.171
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 10.362
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.954
Then I find very few patterns in the guest's memory 9.919

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

# write cache
When I fill the USB drive with a known pattern 2.488
Then patterns cover at least 86% of the test FS size in the guest's memory 6.482

Pattern coverage: 88.388% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.409
Then I find very few patterns in the guest's memory 5.209

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

# read cache
When I mount the USB drive again 0.356
And I read the content of the test FS 1.426
Then patterns cover at least 99% of the test FS size in the guest's memory 4.188

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

When I umount the USB drive 1.115
Then I find very few patterns in the guest's memory 4.809

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

After features/support/hooks.rb:320 0.863
After features/support/hooks.rb:100 0.000
1:14.358
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.717
And I prepare Tails for memory erasure tests 0.555
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.404
Then I find very few patterns in the guest's memory 4.054

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

# write cache
When I fill the USB drive with a known pattern 2.878
Then patterns cover at least 99% of the test FS size in the guest's memory 3.490

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

When I umount the USB drive 1.008
Then I find very few patterns in the guest's memory 3.844

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

# read cache
When I mount the USB drive again 5.532
And I read the content of the test FS 0.440
Then patterns cover at least 99% of the test FS size in the guest's memory 3.611

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

When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory 4.038

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

After features/support/hooks.rb:320 0.766
After features/support/hooks.rb:100 0.000
51.906
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.280
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the root filesystem 15.643
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.698
Then patterns cover at least 128 MiB in the guest's memory 3.059

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.008

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.819

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

After features/support/hooks.rb:320 3.531
After features/support/hooks.rb:100 0.000
8:7.098
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 7:23.192
And I prepare Tails for memory erasure tests 0.436
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.351
When I trigger shutdown 0.010
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.089

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:320 3.552
After features/support/hooks.rb:100 0.012