Project Number Date
test_Tails_ISO_stable 5260 11 Nov 2024, 12:35

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 11:41.450 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.
20.954
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.423
And I prepare Tails for memory erasure tests 0.437
When I start a process allocating 128 MiB of memory with a known pattern 1.229
Then patterns cover at least 128 MiB in the guest's memory 3.527

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

When I kill the allocating process 1.316
Then I find very few patterns in the guest's memory after 3 seconds 6.020

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 1.212
After features/support/hooks.rb:100 0.000
27.879
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.409
And I prepare Tails for memory erasure tests 0.493
And I find very few patterns in the guest's memory 4.004

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.913
Then patterns cover at least 99% of the test FS size in the guest's memory 4.397

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

When I umount "/mnt" 1.735
Then I find very few patterns in the guest's memory after 3 seconds 6.926

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

After features/support/hooks.rb:326 0.891
After features/support/hooks.rb:100 0.000
50.086
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.500
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.321
Then I find very few patterns in the guest's memory 3.352

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.957
Then patterns cover at least 75% of the test FS size in the guest's memory 4.764

Pattern coverage: 89.337% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.027
Then I find very few patterns in the guest's memory after 3 seconds 6.542

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# read cache
When I mount the USB drive again 0.287
And I read the content of the test FS 0.485
Then patterns cover at least 99% of the test FS size in the guest's memory 4.075

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

When I umount the USB drive 0.591
Then I find very few patterns in the guest's memory after 3 seconds 6.708

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 0.856
After features/support/hooks.rb:100 0.000
1:23.066
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.725
And I prepare Tails for memory erasure tests 0.604
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.199
Then I find very few patterns in the guest's memory 3.303

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.067
Then patterns cover at least 99% of the test FS size in the guest's memory 3.725

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

When I umount the USB drive 1.727
Then I find very few patterns in the guest's memory after 3 seconds 6.259

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 5.281
And I read the content of the test FS 0.497
Then patterns cover at least 99% of the test FS size in the guest's memory 3.497

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

When I umount the USB drive 1.085
Then I find very few patterns in the guest's memory after 3 seconds 6.091

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 1.970
After features/support/hooks.rb:100 0.000
52.388
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.487
And I prepare Tails for memory erasure tests 0.473
When I fill a 128 MiB file with a known pattern on the root filesystem 17.233
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.085
Then patterns cover at least 128 MiB in the guest's memory 3.185

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.908

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 3.756
After features/support/hooks.rb:100 0.000
7:47.075
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 7:1.974
And I prepare Tails for memory erasure tests 0.645
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.146
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.291

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.584
After features/support/hooks.rb:100 0.013