Project Number Date
test_Tails_ISO_21565-flatpak-safe 63 02 Oct 2026, 03:21

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 7:11.640 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.
20.180
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 6.084
And I prepare Tails for memory erasure tests 0.326
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.007

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

When I kill the allocating process 0.777
Then I find very few patterns in the guest's memory after 5 seconds 7.789

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

After features/support/hooks.rb:339 0.992
After features/support/hooks.rb:108 0.000
19.363
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 6.152
And I prepare Tails for memory erasure tests 0.295
And I find very few patterns in the guest's memory 2.585

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.413
Then patterns cover at least 99% of the test FS size in the guest's memory 2.865

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

When I umount "/mnt" 0.348
Then I find very few patterns in the guest's memory after 3 seconds 5.701

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

After features/support/hooks.rb:339 0.908
After features/support/hooks.rb:108 0.000
35.639
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 6.212
And I prepare Tails for memory erasure tests 0.258
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.125
Then I find very few patterns in the guest's memory 2.533

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.568
Then patterns cover at least 75% of the test FS size in the guest's memory 3.076

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

When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory after 3 seconds 5.607

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.569
Then patterns cover at least 99% of the test FS size in the guest's memory 2.853

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 5.644

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 0.609
After features/support/hooks.rb:108 0.000
1:0.387
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 6.291
And I prepare Tails for memory erasure tests 0.288
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.037
Then I find very few patterns in the guest's memory 2.662

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

# write cache
When I fill the USB drive with a known pattern 1.324
Then patterns cover at least 99% of the test FS size in the guest's memory 2.948

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

When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 5.483

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

# read cache
When I mount the USB drive again 3.796
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 2.957

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 5.389

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

After features/support/hooks.rb:339 0.922
After features/support/hooks.rb:108 0.000
42.748
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 6.177
And I prepare Tails for memory erasure tests 0.264
When I fill a 128 MiB file with a known pattern on the root filesystem 12.113
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.295
Then patterns cover at least 128 MiB in the guest's memory 2.153

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.738

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

After features/support/hooks.rb:339 3.788
After features/support/hooks.rb:108 0.000
4:13.321
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 3:41.942
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.976
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.099

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

After features/support/hooks.rb:339 3.868
After features/support/hooks.rb:108 0.009