Project Number Date
test_Tails_ISO_stable 4978 29 Jul 2024, 12:37

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 12:58.662 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.
26.031
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.119
And I prepare Tails for memory erasure tests 0.601
When I start a process allocating 128 MiB of memory with a known pattern 2.687
Then patterns cover at least 128 MiB in the guest's memory 4.950

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

When I kill the allocating process 2.567
Then I find very few patterns in the guest's memory 6.104

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

After features/support/hooks.rb:326 2.008
After features/support/hooks.rb:100 0.000
27.168
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.767
And I prepare Tails for memory erasure tests 0.576
And I find very few patterns in the guest's memory 5.176

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.072
Then patterns cover at least 99% of the test FS size in the guest's memory 4.637

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

When I umount "/mnt" 0.932
Then I find very few patterns in the guest's memory 5.005

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

After features/support/hooks.rb:326 1.588
After features/support/hooks.rb:100 0.000
57.338
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.205
And I prepare Tails for memory erasure tests 0.631
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.596
Then I find very few patterns in the guest's memory 5.228

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

# write cache
When I fill the USB drive with a known pattern 4.055
Then patterns cover at least 86% of the test FS size in the guest's memory 4.413

Pattern coverage: 88.297% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.787
Then I find very few patterns in the guest's memory 4.936

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

# read cache
When I mount the USB drive again 0.233
And I read the content of the test FS 5.024
Then patterns cover at least 99% of the test FS size in the guest's memory 4.633

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

When I umount the USB drive 1.708
Then I find very few patterns in the guest's memory 4.882

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

After features/support/hooks.rb:326 1.432
After features/support/hooks.rb:100 0.000
1:22.056
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.000
And I prepare Tails for memory erasure tests 0.680
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.336
Then I find very few patterns in the guest's memory 4.799

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

# write cache
When I fill the USB drive with a known pattern 3.907
Then patterns cover at least 99% of the test FS size in the guest's memory 4.568

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

When I umount the USB drive 1.105
Then I find very few patterns in the guest's memory 4.476

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

# read cache
When I mount the USB drive again 6.406
And I read the content of the test FS 0.911
Then patterns cover at least 99% of the test FS size in the guest's memory 3.588

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

When I umount the USB drive 0.928
Then I find very few patterns in the guest's memory 4.346

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

After features/support/hooks.rb:326 1.226
After features/support/hooks.rb:100 0.000
59.958
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.425
And I prepare Tails for memory erasure tests 0.664
When I fill a 128 MiB file with a known pattern on the root filesystem 21.528
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.673
Then patterns cover at least 128 MiB in the guest's memory 3.599

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.001

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.052

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

After features/support/hooks.rb:326 3.601
After features/support/hooks.rb:100 0.000
8:46.109
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 7:59.249
And I prepare Tails for memory erasure tests 0.464
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.973
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 2.387

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

After features/support/hooks.rb:326 3.585
After features/support/hooks.rb:100 0.013