Project Number Date
test_Tails_ISO_stable 4917 30 Jun 2024, 12:45

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 11:3.885 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.
21.404
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.051
And I prepare Tails for memory erasure tests 0.420
When I start a process allocating 128 MiB of memory with a known pattern 2.281
Then patterns cover at least 128 MiB in the guest's memory 4.189

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

When I kill the allocating process 1.210
Then I find very few patterns in the guest's memory 5.250

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

After features/support/hooks.rb:326 0.820
After features/support/hooks.rb:100 0.000
24.015
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.140
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 4.917

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 1.900
Then patterns cover at least 99% of the test FS size in the guest's memory 3.693

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

When I umount "/mnt" 0.682
Then I find very few patterns in the guest's memory 4.244

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

After features/support/hooks.rb:326 0.779
After features/support/hooks.rb:100 0.000
43.988
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.977
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.086
Then I find very few patterns in the guest's memory 4.334

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.386
Then patterns cover at least 86% of the test FS size in the guest's memory 3.818

Pattern coverage: 86.931% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.594
Then I find very few patterns in the guest's memory 3.999

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# read cache
When I mount the USB drive again 0.308
And I read the content of the test FS 1.238
Then patterns cover at least 99% of the test FS size in the guest's memory 3.692

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

When I umount the USB drive 0.634
Then I find very few patterns in the guest's memory 4.527

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 0.779
After features/support/hooks.rb:100 0.000
1:13.741
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.034
And I prepare Tails for memory erasure tests 0.477
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.588
Then I find very few patterns in the guest's memory 3.603

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

# write cache
When I fill the USB drive with a known pattern 2.072
Then patterns cover at least 99% of the test FS size in the guest's memory 3.171

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

When I umount the USB drive 1.033
Then I find very few patterns in the guest's memory 3.747

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

# read cache
When I mount the USB drive again 5.830
And I read the content of the test FS 0.702
Then patterns cover at least 99% of the test FS size in the guest's memory 3.143

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

When I umount the USB drive 0.731
Then I find very few patterns in the guest's memory 3.604

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

After features/support/hooks.rb:326 1.022
After features/support/hooks.rb:100 0.000
50.528
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 0.376
When I fill a 128 MiB file with a known pattern on the root filesystem 15.558
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.986
Then patterns cover at least 128 MiB in the guest's memory 2.883

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.715

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:326 3.538
After features/support/hooks.rb:100 0.000
7:30.206
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 6:43.451
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.903
When I trigger shutdown 0.011
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.384

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

After features/support/hooks.rb:326 3.500
After features/support/hooks.rb:100 0.011