Project Number Date
test_Tails_ISO_codespell 14 28 Jun 2025, 11:00

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 14:39.579 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.
39.307
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.071
And I prepare Tails for memory erasure tests 0.655
When I start a process allocating 128 MiB of memory with a known pattern 6.772
Then patterns cover at least 128 MiB in the guest's memory 7.415

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

When I kill the allocating process 1.564
Then I find very few patterns in the guest's memory after 5 seconds 13.828

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:330 1.881
After features/support/hooks.rb:100 0.000
38.821
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.838
And I prepare Tails for memory erasure tests 0.665
And I find very few patterns in the guest's memory 7.876

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.222
Then patterns cover at least 99% of the test FS size in the guest's memory 4.436

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

When I umount "/mnt" 0.474
Then I find very few patterns in the guest's memory after 3 seconds 14.307

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:330 1.656
After features/support/hooks.rb:100 0.000
1:0.612
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 9.035
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with a vfat filesystem 12.886
Then I find very few patterns in the guest's memory 2.605

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.850
Then patterns cover at least 75% of the test FS size in the guest's memory 9.988

Pattern coverage: 86.334% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.448
Then I find very few patterns in the guest's memory after 3 seconds 5.592

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 0.431
And I read the content of the test FS 0.613
Then patterns cover at least 99% of the test FS size in the guest's memory 3.737

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

When I umount the USB drive 1.300
Then I find very few patterns in the guest's memory after 3 seconds 9.621

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:330 1.263
After features/support/hooks.rb:100 0.000
1:38.164
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.158
And I prepare Tails for memory erasure tests 1.301
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.246
Then I find very few patterns in the guest's memory 10.762

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.611
Then patterns cover at least 99% of the test FS size in the guest's memory 3.316

Pattern coverage: 100.546% (91 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.000
Then I find very few patterns in the guest's memory after 3 seconds 13.468

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 1.595
And I read the content of the test FS 0.711
Then patterns cover at least 99% of the test FS size in the guest's memory 3.889

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

When I umount the USB drive 0.810
Then I find very few patterns in the guest's memory after 3 seconds 11.292

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:330 1.233
After features/support/hooks.rb:100 0.000
58.616
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.423
And I prepare Tails for memory erasure tests 0.601
When I fill a 128 MiB file with a known pattern on the root filesystem 16.905
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.067
Then patterns cover at least 128 MiB in the guest's memory 8.424

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

When I trigger shutdown 0.159
Then I find very few patterns in the guest's memory after 20 seconds 22.034

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:330 3.646
After features/support/hooks.rb:100 0.000
9:44.056
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 8:59.116
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.605
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.872

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

After features/support/hooks.rb:330 5.555
After features/support/hooks.rb:100 0.033