Project Number Date
test_Tails_ISO_21565-flatpak-safe 110 29 Oct 2026, 03:40

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 7:8.417 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.
20.070
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 6.199
And I prepare Tails for memory erasure tests 0.292
When I start a process allocating 128 MiB of memory with a known pattern 2.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.033

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

When I kill the allocating process 0.739
Then I find very few patterns in the guest's memory after 5 seconds 7.643

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 0.613
After features/support/hooks.rb:108 0.000
19.410
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 6.151
And I prepare Tails for memory erasure tests 0.364
And I find very few patterns in the guest's memory 2.609

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.494
Then patterns cover at least 99% of the test FS size in the guest's memory 2.701

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

When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.685

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

After features/support/hooks.rb:339 0.760
After features/support/hooks.rb:108 0.000
36.090
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 6.181
And I prepare Tails for memory erasure tests 0.271
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.157
Then I find very few patterns in the guest's memory 2.660

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.684
Then patterns cover at least 75% of the test FS size in the guest's memory 3.075

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

When I umount the USB drive 0.695
Then I find very few patterns in the guest's memory after 3 seconds 5.650

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 0.636
Then patterns cover at least 99% of the test FS size in the guest's memory 2.869

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

When I umount the USB drive 0.484
Then I find very few patterns in the guest's memory after 3 seconds 5.503

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

After features/support/hooks.rb:339 0.650
After features/support/hooks.rb:108 0.000
1:1.326
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 6.261
And I prepare Tails for memory erasure tests 0.298
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.489
Then I find very few patterns in the guest's memory 2.703

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

# write cache
When I fill the USB drive with a known pattern 1.085
Then patterns cover at least 99% of the test FS size in the guest's memory 2.816

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

When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory after 3 seconds 5.622

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

# read cache
When I mount the USB drive again 3.595
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 2.851

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

When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 5.321

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

After features/support/hooks.rb:339 0.922
After features/support/hooks.rb:108 0.000
44.572
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 6.213
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the root filesystem 13.700
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.627
Then patterns cover at least 128 MiB in the guest's memory 1.978

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 20.736

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

After features/support/hooks.rb:339 3.421
After features/support/hooks.rb:108 0.000
4:6.948
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.718
And I prepare Tails for memory erasure tests 0.215
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.909
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.100

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

After features/support/hooks.rb:339 3.706
After features/support/hooks.rb:108 0.019