Project Number Date
test_Tails_ISO_stable 4629 22 Jan 2024, 15:45

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 14:17.397 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.
18.851
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.843
And I prepare Tails for memory erasure tests 0.532
When I start a process allocating 128 MiB of memory with a known pattern 2.429
Then patterns cover at least 128 MiB in the guest's memory 3.189

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

When I kill the allocating process 0.544
Then I find very few patterns in the guest's memory 4.312

Pattern coverage: 0.000% (0 MiB out of 1206 MiB reference memory)

After features/support/hooks.rb:291 0.817
After features/support/hooks.rb:75 0.000
1:3.082
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.988
And I prepare Tails for memory erasure tests 0.697
And I find very few patterns in the guest's memory 4.147

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 41.669
Then patterns cover at least 99% of the test FS size in the guest's memory 3.625

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

When I umount "/mnt" 0.281
Then I find very few patterns in the guest's memory 3.672

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

After features/support/hooks.rb:291 0.799
After features/support/hooks.rb:75 0.000
3:10.652
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.867
And I prepare Tails for memory erasure tests 0.469
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.970
Then I find very few patterns in the guest's memory 3.754

Pattern coverage: 0.000% (0 MiB out of 1221 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:32.475
Then patterns cover at least 86% of the test FS size in the guest's memory 3.836

Pattern coverage: 99.196% (123 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.798
Then I find very few patterns in the guest's memory 3.439

Pattern coverage: 0.000% (0 MiB out of 1221 MiB reference memory)

# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 2.031
Then patterns cover at least 99% of the test FS size in the guest's memory 3.944

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

When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory 4.414

Pattern coverage: 0.000% (0 MiB out of 1221 MiB reference memory)

After features/support/hooks.rb:291 1.056
After features/support/hooks.rb:75 0.000
2:48.894
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.967
And I prepare Tails for memory erasure tests 0.519
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.242
Then I find very few patterns in the guest's memory 3.667

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:53.372
Then patterns cover at least 99% of the test FS size in the guest's memory 2.666

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

When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory 4.758

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

# read cache
When I mount the USB drive again 3.618
And I read the content of the test FS 0.726
Then patterns cover at least 99% of the test FS size in the guest's memory 3.378

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory 3.934

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

After features/support/hooks.rb:291 0.810
After features/support/hooks.rb:75 0.000
48.525
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.727
And I prepare Tails for memory erasure tests 0.498
When I fill a 128 MiB file with a known pattern on the root filesystem 14.109
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.355
Then patterns cover at least 128 MiB in the guest's memory 2.488

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

When I trigger shutdown 0.606
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.721

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

After features/support/hooks.rb:291 3.477
After features/support/hooks.rb:75 0.000
6:7.391
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:24.405
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.116
When I trigger shutdown 0.325
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.116

Pattern coverage: 0.000% (0 MiB out of 1193 MiB reference memory)

After features/support/hooks.rb:291 3.474
After features/support/hooks.rb:75 0.011