Project Number Date
test_Tails_ISO_stable 5208 21 Oct 2024, 17:36

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 12:35.076 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.
22.207
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.261
And I prepare Tails for memory erasure tests 0.604
When I start a process allocating 128 MiB of memory with a known pattern 2.356
Then patterns cover at least 128 MiB in the guest's memory 3.692

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

When I kill the allocating process 1.374
Then I find very few patterns in the guest's memory after 3 seconds 5.918

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

After features/support/hooks.rb:326 1.277
After features/support/hooks.rb:100 0.000
24.912
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.346
And I prepare Tails for memory erasure tests 0.567
And I find very few patterns in the guest's memory 2.968

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.577
Then patterns cover at least 99% of the test FS size in the guest's memory 3.364

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

When I umount "/mnt" 1.021
Then I find very few patterns in the guest's memory after 3 seconds 6.066

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 1.237
After features/support/hooks.rb:100 0.000
53.351
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.407
And I prepare Tails for memory erasure tests 0.567
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.173
Then I find very few patterns in the guest's memory 4.029

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 6.077
Then patterns cover at least 75% of the test FS size in the guest's memory 3.648

Pattern coverage: 89.711% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.609
Then I find very few patterns in the guest's memory after 3 seconds 6.270

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.341
And I read the content of the test FS 0.729
Then patterns cover at least 99% of the test FS size in the guest's memory 3.588

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

When I umount the USB drive 1.098
Then I find very few patterns in the guest's memory after 3 seconds 6.809

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 0.806
After features/support/hooks.rb:100 0.000
1:23.989
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.311
And I prepare Tails for memory erasure tests 0.693
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.906
Then I find very few patterns in the guest's memory 3.186

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

# write cache
When I fill the USB drive with a known pattern 2.922
Then patterns cover at least 99% of the test FS size in the guest's memory 3.166

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

When I umount the USB drive 1.350
Then I find very few patterns in the guest's memory after 3 seconds 6.220

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

# read cache
When I mount the USB drive again 5.633
And I read the content of the test FS 2.006
Then patterns cover at least 99% of the test FS size in the guest's memory 3.593

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

When I umount the USB drive 0.901
Then I find very few patterns in the guest's memory after 3 seconds 6.097

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

After features/support/hooks.rb:326 1.960
After features/support/hooks.rb:100 0.000
52.715
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.754
And I prepare Tails for memory erasure tests 0.578
When I fill a 128 MiB file with a known pattern on the root filesystem 16.371
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.690
Then patterns cover at least 128 MiB in the guest's memory 3.411

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.895

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.538
After features/support/hooks.rb:100 0.000
8:37.899
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 7:53.177
And I prepare Tails for memory erasure tests 0.483
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.928
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.296

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

After features/support/hooks.rb:326 3.498
After features/support/hooks.rb:100 0.013