Project Number Date
test_Tails_ISO_stable 4969 24 Jul 2024, 12:12

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 11:58.354 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.
19.440
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.293
And I prepare Tails for memory erasure tests 0.391
When I start a process allocating 128 MiB of memory with a known pattern 1.408
Then patterns cover at least 128 MiB in the guest's memory 3.772

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

When I kill the allocating process 1.313
Then I find very few patterns in the guest's memory 4.260

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

After features/support/hooks.rb:326 2.001
After features/support/hooks.rb:100 0.000
23.347
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.555
And I prepare Tails for memory erasure tests 0.537
And I find very few patterns in the guest's memory 4.052

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.549
Then patterns cover at least 99% of the test FS size in the guest's memory 3.502

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

When I umount "/mnt" 0.581
Then I find very few patterns in the guest's memory 4.567

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 1.346
After features/support/hooks.rb:100 0.000
47.360
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.629
And I prepare Tails for memory erasure tests 0.505
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.064
Then I find very few patterns in the guest's memory 4.847

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

# write cache
When I fill the USB drive with a known pattern 2.589
Then patterns cover at least 86% of the test FS size in the guest's memory 4.375

Pattern coverage: 86.937% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.604
Then I find very few patterns in the guest's memory 4.729

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

# read cache
When I mount the USB drive again 0.264
And I read the content of the test FS 0.588
Then patterns cover at least 99% of the test FS size in the guest's memory 4.143

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

When I umount the USB drive 0.604
Then I find very few patterns in the guest's memory 4.412

Pattern coverage: 0.001% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 1.866
After features/support/hooks.rb:100 0.000
1:23.953
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.450
And I prepare Tails for memory erasure tests 0.588
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.035
Then I find very few patterns in the guest's memory 3.801

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.812
Then patterns cover at least 99% of the test FS size in the guest's memory 3.002

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

When I umount the USB drive 1.582
Then I find very few patterns in the guest's memory 3.259

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 7.756
And I read the content of the test FS 0.420
Then patterns cover at least 99% of the test FS size in the guest's memory 2.695

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 4.565
Then I find very few patterns in the guest's memory 3.981

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 5.185
After features/support/hooks.rb:100 0.000
51.626
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.402
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the root filesystem 15.108
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.289
Then patterns cover at least 128 MiB in the guest's memory 3.497

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.003

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.881

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 3.530
After features/support/hooks.rb:100 0.000
8:12.626
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 7:26.983
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.911
When I trigger shutdown 0.016
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.257

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 3.545
After features/support/hooks.rb:100 0.013