Project Number Date
test_Tails_ISO_stable 4905 19 Jun 2024, 12:43

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 11:37.416 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.
21.654
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.278
And I prepare Tails for memory erasure tests 0.418
When I start a process allocating 128 MiB of memory with a known pattern 1.287
Then patterns cover at least 128 MiB in the guest's memory 3.655

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

When I kill the allocating process 3.042
Then I find very few patterns in the guest's memory 3.972

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

After features/support/hooks.rb:326 0.845
After features/support/hooks.rb:100 0.000
23.820
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.303
And I prepare Tails for memory erasure tests 0.445
And I find very few patterns in the guest's memory 4.171

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.699
Then patterns cover at least 99% of the test FS size in the guest's memory 4.234

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

When I umount "/mnt" 0.518
Then I find very few patterns in the guest's memory 4.447

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

After features/support/hooks.rb:326 1.559
After features/support/hooks.rb:100 0.000
44.687
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.219
And I prepare Tails for memory erasure tests 0.428
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.210
Then I find very few patterns in the guest's memory 4.746

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.123
Then patterns cover at least 86% of the test FS size in the guest's memory 4.422

Pattern coverage: 86.288% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.952
Then I find very few patterns in the guest's memory 4.720

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 0.345
And I read the content of the test FS 0.651
Then patterns cover at least 99% of the test FS size in the guest's memory 3.891

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

When I umount the USB drive 0.792
Then I find very few patterns in the guest's memory 4.183

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.804
After features/support/hooks.rb:100 0.000
1:10.575
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.030
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.775
Then I find very few patterns in the guest's memory 3.809

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.317
Then patterns cover at least 99% of the test FS size in the guest's memory 2.900

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

When I umount the USB drive 1.030
Then I find very few patterns in the guest's memory 3.559

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 5.073
And I read the content of the test FS 0.699
Then patterns cover at least 99% of the test FS size in the guest's memory 2.893

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

When I umount the USB drive 0.661
Then I find very few patterns in the guest's memory 3.426

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.949
After features/support/hooks.rb:100 0.000
51.806
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.273
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 16.896
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.720
Then patterns cover at least 128 MiB in the guest's memory 2.675

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 1.806

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 3.504
After features/support/hooks.rb:100 0.000
8:4.871
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 7:19.787
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.473
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 2.154

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 3.555
After features/support/hooks.rb:100 0.011