Project Number Date
test_Tails_ISO_stable 4947 15 Jul 2024, 20:33

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 11:59.938 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.
20.892
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.190
And I prepare Tails for memory erasure tests 0.420
When I start a process allocating 128 MiB of memory with a known pattern 2.483
Then patterns cover at least 128 MiB in the guest's memory 3.820

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

When I kill the allocating process 1.189
Then I find very few patterns in the guest's memory 4.788

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 1.302
After features/support/hooks.rb:100 0.000
30.172
Before features/support/hooks.rb:269 0.006
Given I have started Tails from DVD without network and logged in 9.488
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 6.476

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 4.004
Then patterns cover at least 99% of the test FS size in the guest's memory 3.528

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

When I umount "/mnt" 0.818
Then I find very few patterns in the guest's memory 5.437

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 1.723
After features/support/hooks.rb:100 0.000
47.522
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.491
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.119
Then I find very few patterns in the guest's memory 4.760

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

# write cache
When I fill the USB drive with a known pattern 2.856
Then patterns cover at least 86% of the test FS size in the guest's memory 4.462

Pattern coverage: 88.251% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.616
Then I find very few patterns in the guest's memory 4.557

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

# read cache
When I mount the USB drive again 0.376
And I read the content of the test FS 1.005
Then patterns cover at least 99% of the test FS size in the guest's memory 3.495

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

When I umount the USB drive 1.316
Then I find very few patterns in the guest's memory 5.043

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

After features/support/hooks.rb:326 1.571
After features/support/hooks.rb:100 0.000
1:40.781
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.826
And I prepare Tails for memory erasure tests 0.510
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.285
Then I find very few patterns in the guest's memory 6.347

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

# write cache
When I fill the USB drive with a known pattern 2.159
Then patterns cover at least 99% of the test FS size in the guest's memory 4.968

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

When I umount the USB drive 0.959
Then I find very few patterns in the guest's memory 4.048

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

# read cache
When I mount the USB drive again 25.684
And I read the content of the test FS 0.677
Then patterns cover at least 99% of the test FS size in the guest's memory 2.795

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

When I umount the USB drive 2.938
Then I find very few patterns in the guest's memory 3.579

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

After features/support/hooks.rb:326 1.239
After features/support/hooks.rb:100 0.000
55.354
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.505
And I prepare Tails for memory erasure tests 0.419
When I fill a 128 MiB file with a known pattern on the root filesystem 18.989
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.891
Then patterns cover at least 128 MiB in the guest's memory 3.732

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

When I trigger shutdown 0.017
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.781

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

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.000
7:45.214
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 6:58.218
And I prepare Tails for memory erasure tests 0.452
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.849
When I trigger shutdown 0.017
And I wait 20 seconds 20.011

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.665

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 3.572
After features/support/hooks.rb:100 0.013