Project Number Date
test_Tails_ISO_stable 4612 10 Jan 2024, 19:26

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 13:38.965 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.
19.338
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.117
And I prepare Tails for memory erasure tests 0.514
When I start a process allocating 128 MiB of memory with a known pattern 2.328
Then patterns cover at least 128 MiB in the guest's memory 3.715

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.255
Then I find very few patterns in the guest's memory 4.407

Pattern coverage: 0.000% (0 MiB out of 1195 MiB reference memory)

After features/support/hooks.rb:291 0.932
After features/support/hooks.rb:75 0.000
1:2.028
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.621
And I prepare Tails for memory erasure tests 0.509
And I find very few patterns in the guest's memory 4.571

Pattern coverage: 0.000% (0 MiB out of 1205 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.686
Then patterns cover at least 99% of the test FS size in the guest's memory 3.593

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

When I umount "/mnt" 0.563
Then I find very few patterns in the guest's memory 4.481

Pattern coverage: 0.000% (0 MiB out of 1205 MiB reference memory)

After features/support/hooks.rb:291 0.822
After features/support/hooks.rb:75 0.000
2:54.812
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.153
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.002
Then I find very few patterns in the guest's memory 4.278

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:18.267
Then patterns cover at least 86% of the test FS size in the guest's memory 3.088

Pattern coverage: 91.895% (114 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.648
Then I find very few patterns in the guest's memory 3.703

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# read cache
When I mount the USB drive again 0.348
And I read the content of the test FS 0.840
Then patterns cover at least 99% of the test FS size in the guest's memory 3.795

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.369
Then I find very few patterns in the guest's memory 3.869

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

After features/support/hooks.rb:291 1.266
After features/support/hooks.rb:75 0.000
2:29.584
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.637
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.576
Then I find very few patterns in the guest's memory 3.935

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:33.163
Then patterns cover at least 99% of the test FS size in the guest's memory 3.739

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory 4.056

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

# read cache
When I mount the USB drive again 3.856
And I read the content of the test FS 0.760
Then patterns cover at least 99% of the test FS size in the guest's memory 3.074

Pattern coverage: 108.663% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.589
Then I find very few patterns in the guest's memory 4.038

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

After features/support/hooks.rb:291 1.488
After features/support/hooks.rb:75 0.000
50.617
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.631
And I prepare Tails for memory erasure tests 0.598
When I fill a 128 MiB file with a known pattern on the root filesystem 13.596
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.849
Then patterns cover at least 128 MiB in the guest's memory 3.114

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

When I trigger shutdown 0.811
And I wait 20 seconds 20.006

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.009

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

After features/support/hooks.rb:291 3.487
After features/support/hooks.rb:75 0.000
6:2.583
Before features/support/hooks.rb:245 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:18.441
And I prepare Tails for memory erasure tests 0.509
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.691
When I trigger shutdown 0.432
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.502

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

After features/support/hooks.rb:291 3.452
After features/support/hooks.rb:75 0.012