Project Number Date
test_Tails_ISO_21565-flatpak-safe 73 06 Oct 2026, 13:49

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 7:57.109 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.
22.074
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 6.440
And I prepare Tails for memory erasure tests 0.358
When I start a process allocating 128 MiB of memory with a known pattern 2.209
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 4.289

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

When I kill the allocating process 0.255
Then I find very few patterns in the guest's memory after 5 seconds 8.521

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 0.707
After features/support/hooks.rb:108 0.000
25.451
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 6.879
And I prepare Tails for memory erasure tests 0.403
And I find very few patterns in the guest's memory 3.718

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.645
Then patterns cover at least 99% of the test FS size in the guest's memory 5.509

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

When I umount "/mnt" 0.446
Then I find very few patterns in the guest's memory after 3 seconds 6.849

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.816
After features/support/hooks.rb:108 0.000
39.517
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 6.401
And I prepare Tails for memory erasure tests 0.340
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.880
Then I find very few patterns in the guest's memory 3.091

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

# write cache
When I fill the USB drive with a known pattern 3.087
Then patterns cover at least 75% of the test FS size in the guest's memory 3.274

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

When I umount the USB drive 0.771
Then I find very few patterns in the guest's memory after 3 seconds 5.907

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

# read cache
When I mount the USB drive again 0.223
And I read the content of the test FS 0.692
Then patterns cover at least 99% of the test FS size in the guest's memory 3.378

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

When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 6.055

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

After features/support/hooks.rb:339 0.732
After features/support/hooks.rb:108 0.000
1:18.409
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 18.360
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.573
Then I find very few patterns in the guest's memory 3.108

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

# write cache
When I fill the USB drive with a known pattern 1.224
Then patterns cover at least 99% of the test FS size in the guest's memory 2.852

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

When I umount the USB drive 0.571
Then I find very few patterns in the guest's memory after 3 seconds 5.466

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

# read cache
When I mount the USB drive again 3.950
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 5.045

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

When I umount the USB drive 0.532
Then I find very few patterns in the guest's memory after 3 seconds 5.916

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

After features/support/hooks.rb:339 0.859
After features/support/hooks.rb:108 0.000
43.566
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 6.533
And I prepare Tails for memory erasure tests 0.358
When I fill a 128 MiB file with a known pattern on the root filesystem 12.106
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.547
Then patterns cover at least 128 MiB in the guest's memory 2.246

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 20.767

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

After features/support/hooks.rb:339 3.644
After features/support/hooks.rb:108 0.000
4:28.090
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:57.257
And I prepare Tails for memory erasure tests 0.270
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.217
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.338

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 3.608
After features/support/hooks.rb:108 0.013