Project Number Date
test_Tails_ISO_stable 4972 25 Jul 2024, 08:24

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 11:0.972 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.
19.670
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.131
And I prepare Tails for memory erasure tests 0.464
When I start a process allocating 128 MiB of memory with a known pattern 1.278
Then patterns cover at least 128 MiB in the guest's memory 4.028

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

When I kill the allocating process 1.493
Then I find very few patterns in the guest's memory 4.274

Pattern coverage: 0.000% (0 MiB out of 857 MiB reference memory)

After features/support/hooks.rb:326 0.863
After features/support/hooks.rb:100 0.000
24.035
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.316
And I prepare Tails for memory erasure tests 0.474
And I find very few patterns in the guest's memory 4.489

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 1.913
Then patterns cover at least 99% of the test FS size in the guest's memory 3.451

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

When I umount "/mnt" 1.079
Then I find very few patterns in the guest's memory 4.312

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

After features/support/hooks.rb:326 1.233
After features/support/hooks.rb:100 0.000
46.876
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.257
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.956
Then I find very few patterns in the guest's memory 4.921

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

# write cache
When I fill the USB drive with a known pattern 2.692
Then patterns cover at least 86% of the test FS size in the guest's memory 3.920

Pattern coverage: 86.647% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.463
Then I find very few patterns in the guest's memory 4.680

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

# read cache
When I mount the USB drive again 0.273
And I read the content of the test FS 1.534
Then patterns cover at least 99% of the test FS size in the guest's memory 5.233

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

When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory 3.999

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

After features/support/hooks.rb:326 1.105
After features/support/hooks.rb:100 0.000
1:11.467
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.355
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.726
Then I find very few patterns in the guest's memory 3.921

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.975
Then patterns cover at least 99% of the test FS size in the guest's memory 3.292

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

When I umount the USB drive 0.945
Then I find very few patterns in the guest's memory 3.836

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

# read cache
When I mount the USB drive again 5.350
And I read the content of the test FS 0.564
Then patterns cover at least 99% of the test FS size in the guest's memory 3.226

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

When I umount the USB drive 0.907
Then I find very few patterns in the guest's memory 3.928

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

After features/support/hooks.rb:326 4.762
After features/support/hooks.rb:100 0.000
50.715
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.489
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the root filesystem 14.854
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.996
Then patterns cover at least 128 MiB in the guest's memory 3.075

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.787

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 3.488
After features/support/hooks.rb:100 0.000
7:28.205
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 6:43.773
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.600
When I trigger shutdown 0.017
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.369

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

After features/support/hooks.rb:326 3.530
After features/support/hooks.rb:100 0.011