Project Number Date
test_Tails_ISO_21565-flatpak-safe 113 31 Oct 2026, 03:37

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 7:23.636 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.
19.360
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 6.227
And I prepare Tails for memory erasure tests 0.288
When I start a process allocating 128 MiB of memory with a known pattern 2.220
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.790

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

When I kill the allocating process 0.231
Then I find very few patterns in the guest's memory after 5 seconds 7.602

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 0.872
After features/support/hooks.rb:108 0.000
20.079
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 6.241
And I prepare Tails for memory erasure tests 0.284
And I find very few patterns in the guest's memory 2.761

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.446
Then patterns cover at least 99% of the test FS size in the guest's memory 3.084

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

When I umount "/mnt" 0.412
Then I find very few patterns in the guest's memory after 3 seconds 5.847

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

After features/support/hooks.rb:339 0.622
After features/support/hooks.rb:108 0.000
36.315
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 0.299
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.117
Then I find very few patterns in the guest's memory 2.604

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.658
Then patterns cover at least 75% of the test FS size in the guest's memory 3.229

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

When I umount the USB drive 0.685
Then I find very few patterns in the guest's memory after 3 seconds 5.890

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.589
Then patterns cover at least 99% of the test FS size in the guest's memory 2.803

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

When I umount the USB drive 0.450
Then I find very few patterns in the guest's memory after 3 seconds 5.640

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

After features/support/hooks.rb:339 0.946
After features/support/hooks.rb:108 0.000
59.979
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 6.223
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.184
Then I find very few patterns in the guest's memory 2.480

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

# write cache
When I fill the USB drive with a known pattern 1.286
Then patterns cover at least 99% of the test FS size in the guest's memory 2.745

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

When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 5.460

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

# read cache
When I mount the USB drive again 3.730
And I read the content of the test FS 0.366
Then patterns cover at least 99% of the test FS size in the guest's memory 2.797

Pattern coverage: 106.115% (97 MiB out of 91 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 5.450

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
55.626
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 17.917
And I prepare Tails for memory erasure tests 0.280
When I fill a 128 MiB file with a known pattern on the root filesystem 12.843
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.410
Then patterns cover at least 128 MiB in the guest's memory 2.421

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 20.748

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 3.376
After features/support/hooks.rb:108 0.000
4:12.274
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 3:41.534
And I prepare Tails for memory erasure tests 0.226
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.444
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.064

Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)

After features/support/hooks.rb:339 3.400
After features/support/hooks.rb:108 0.029