Project Number Date
test_Tails_ISO_stable 4970 24 Jul 2024, 12:08

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 11:13.538 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.
21.550
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.666
And I prepare Tails for memory erasure tests 0.593
When I start a process allocating 128 MiB of memory with a known pattern 1.625
Then patterns cover at least 128 MiB in the guest's memory 4.055

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

When I kill the allocating process 1.192
Then I find very few patterns in the guest's memory 4.416

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

After features/support/hooks.rb:326 2.683
After features/support/hooks.rb:100 0.000
23.172
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.108
And I prepare Tails for memory erasure tests 0.511
And I find very few patterns in the guest's memory 4.113

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 1.904
Then patterns cover at least 99% of the test FS size in the guest's memory 3.884

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

When I umount "/mnt" 0.573
Then I find very few patterns in the guest's memory 4.076

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

After features/support/hooks.rb:326 1.409
After features/support/hooks.rb:100 0.000
50.334
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.634
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.082
Then I find very few patterns in the guest's memory 4.151

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

# write cache
When I fill the USB drive with a known pattern 4.159
Then patterns cover at least 86% of the test FS size in the guest's memory 3.943

Pattern coverage: 90.443% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.469
Then I find very few patterns in the guest's memory 4.282

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

# read cache
When I mount the USB drive again 0.261
And I read the content of the test FS 4.564
Then patterns cover at least 99% of the test FS size in the guest's memory 3.593

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

When I umount the USB drive 0.519
Then I find very few patterns in the guest's memory 4.200

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

After features/support/hooks.rb:326 1.196
After features/support/hooks.rb:100 0.000
1:13.086
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.166
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.802
Then I find very few patterns in the guest's memory 3.454

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

# write cache
When I fill the USB drive with a known pattern 2.276
Then patterns cover at least 99% of the test FS size in the guest's memory 3.257

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

When I umount the USB drive 0.809
Then I find very few patterns in the guest's memory 3.493

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

# read cache
When I mount the USB drive again 4.540
And I read the content of the test FS 3.776
Then patterns cover at least 99% of the test FS size in the guest's memory 2.721

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

When I umount the USB drive 0.657
Then I find very few patterns in the guest's memory 3.615

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

After features/support/hooks.rb:326 1.190
After features/support/hooks.rb:100 0.000
54.100
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.330
And I prepare Tails for memory erasure tests 0.441
When I fill a 128 MiB file with a known pattern on the root filesystem 18.158
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.155
Then patterns cover at least 128 MiB in the guest's memory 3.013

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

When I trigger shutdown 0.021
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.958

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

After features/support/hooks.rb:326 3.479
After features/support/hooks.rb:100 0.000
7:31.293
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:46.884
And I prepare Tails for memory erasure tests 0.440
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.738
When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.196

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.014