Project Number Date
test_Tails_ISO_21565-flatpak-safe 85 12 Oct 2026, 03:26

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 7:39.615 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.
20.509
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 6.422
And I prepare Tails for memory erasure tests 0.340
When I start a process allocating 128 MiB of memory with a known pattern 2.254
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.900

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

When I kill the allocating process 0.785
Then I find very few patterns in the guest's memory after 5 seconds 7.805

Pattern coverage: 0.000% (0 MiB out of 1384 MiB reference memory)

After features/support/hooks.rb:339 0.760
After features/support/hooks.rb:108 0.000
31.944
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 18.278
And I prepare Tails for memory erasure tests 0.342
And I find very few patterns in the guest's memory 2.678

Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.475
Then patterns cover at least 99% of the test FS size in the guest's memory 2.911

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

When I umount "/mnt" 0.399
Then I find very few patterns in the guest's memory after 3 seconds 5.858

Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)

After features/support/hooks.rb:339 0.866
After features/support/hooks.rb:108 0.000
37.294
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 6.500
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.142
Then I find very few patterns in the guest's memory 2.682

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.736
Then patterns cover at least 75% of the test FS size in the guest's memory 3.521

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

When I umount the USB drive 0.711
Then I find very few patterns in the guest's memory after 3 seconds 5.761

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# read cache
When I mount the USB drive again 0.268
And I read the content of the test FS 0.566
Then patterns cover at least 99% of the test FS size in the guest's memory 2.864

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

When I umount the USB drive 0.452
Then I find very few patterns in the guest's memory after 3 seconds 5.768

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

After features/support/hooks.rb:339 0.912
After features/support/hooks.rb:108 0.000
1:3.024
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 6.752
And I prepare Tails for memory erasure tests 0.300
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.991
Then I find very few patterns in the guest's memory 2.669

Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.426
Then patterns cover at least 99% of the test FS size in the guest's memory 2.716

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

When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.661

Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)

# read cache
When I mount the USB drive again 3.790
And I read the content of the test FS 0.315
Then patterns cover at least 99% of the test FS size in the guest's memory 2.665

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

When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 5.817

Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)

After features/support/hooks.rb:339 0.971
After features/support/hooks.rb:108 0.000
44.838
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 6.351
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the root filesystem 13.470
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.744
Then patterns cover at least 128 MiB in the guest's memory 2.209

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 20.764

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

After features/support/hooks.rb:339 3.717
After features/support/hooks.rb:108 0.000
4:22.004
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 3:51.285
And I prepare Tails for memory erasure tests 0.274
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.359
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.080

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 3.658
After features/support/hooks.rb:108 0.024