Project Number Date
test_Tails_ISO_add-relevant-binary-packages-script 5 12 Oct 2026, 01:44

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 7:29.193 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.
32.065
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 18.214
And I prepare Tails for memory erasure tests 0.266
When I start a process allocating 128 MiB of memory with a known pattern 2.171
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.013

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.712
Then I find very few patterns in the guest's memory after 5 seconds 7.686

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.658
After features/support/hooks.rb:108 0.000
19.877
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.109
And I prepare Tails for memory erasure tests 0.342
And I find very few patterns in the guest's memory 3.111

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.353
Then patterns cover at least 99% of the test FS size in the guest's memory 2.893

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

When I umount "/mnt" 0.368
Then I find very few patterns in the guest's memory after 3 seconds 5.697

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 0.838
After features/support/hooks.rb:108 0.000
39.742
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.100
And I prepare Tails for memory erasure tests 0.266
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.158
Then I find very few patterns in the guest's memory 2.671

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.571
Then patterns cover at least 75% of the test FS size in the guest's memory 2.998

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.625
Then I find very few patterns in the guest's memory after 3 seconds 5.706

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# read cache
When I mount the USB drive again 0.174
And I read the content of the test FS 0.540
Then patterns cover at least 99% of the test FS size in the guest's memory 3.795

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 8.718

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.984
After features/support/hooks.rb:108 0.000
1:1.375
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.309
And I prepare Tails for memory erasure tests 0.278
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.651
Then I find very few patterns in the guest's memory 3.303

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 0.981
Then patterns cover at least 99% of the test FS size in the guest's memory 3.242

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.522
Then I find very few patterns in the guest's memory after 3 seconds 6.417

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# read cache
When I mount the USB drive again 3.694
And I read the content of the test FS 0.376
Then patterns cover at least 99% of the test FS size in the guest's memory 2.759

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.427

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.911
After features/support/hooks.rb:108 0.000
45.154
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.248
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the root filesystem 13.957
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.531
Then patterns cover at least 128 MiB in the guest's memory 2.244

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.865

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 3.391
After features/support/hooks.rb:108 0.000
4:10.978
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:39.900
And I prepare Tails for memory erasure tests 0.280
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.771
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.021

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

After features/support/hooks.rb:339 3.707
After features/support/hooks.rb:108 0.053