Project Number Date
test_Tails_ISO_stable 4926 09 Jul 2024, 18:22

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 10:57.208 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.
21.814
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.294
And I prepare Tails for memory erasure tests 0.464
When I start a process allocating 128 MiB of memory with a known pattern 2.727
Then patterns cover at least 128 MiB in the guest's memory 4.653

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

When I kill the allocating process 1.217
Then I find very few patterns in the guest's memory 4.457

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 0.978
After features/support/hooks.rb:100 0.000
24.853
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.102
And I prepare Tails for memory erasure tests 0.428
And I find very few patterns in the guest's memory 4.752

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.888
Then patterns cover at least 99% of the test FS size in the guest's memory 4.249

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

When I umount "/mnt" 1.291
Then I find very few patterns in the guest's memory 4.140

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.845
After features/support/hooks.rb:100 0.000
47.890
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.484
And I prepare Tails for memory erasure tests 0.483
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.985
Then I find very few patterns in the guest's memory 4.122

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.673
Then patterns cover at least 86% of the test FS size in the guest's memory 4.016

Pattern coverage: 91.664% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.590
Then I find very few patterns in the guest's memory 4.199

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.603
And I read the content of the test FS 0.643
Then patterns cover at least 99% of the test FS size in the guest's memory 4.048

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

When I umount the USB drive 0.711
Then I find very few patterns in the guest's memory 4.327

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.904
After features/support/hooks.rb:100 0.000
1:13.546
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.127
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.448
Then I find very few patterns in the guest's memory 3.983

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

# write cache
When I fill the USB drive with a known pattern 1.894
Then patterns cover at least 99% of the test FS size in the guest's memory 3.753

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

When I umount the USB drive 1.589
Then I find very few patterns in the guest's memory 4.553

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

# read cache
When I mount the USB drive again 5.181
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 3.382

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

When I umount the USB drive 0.842
Then I find very few patterns in the guest's memory 3.801

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

After features/support/hooks.rb:326 0.850
After features/support/hooks.rb:100 0.000
49.179
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.203
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the root filesystem 13.750
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.833
Then patterns cover at least 128 MiB in the guest's memory 3.151

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 1.800

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 3.554
After features/support/hooks.rb:100 0.000
7:19.922
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 6:36.309
And I prepare Tails for memory erasure tests 0.396
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.890
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.295

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

After features/support/hooks.rb:326 3.523
After features/support/hooks.rb:100 0.013