Project Number Date
test_Tails_ISO_21565-flatpak-safe 5 20 Aug 2026, 23:19

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 7:20.825 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.
19.191
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 6.075
And I prepare Tails for memory erasure tests 0.263
When I start a process allocating 128 MiB of memory with a known pattern 2.211
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.799

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

When I kill the allocating process 0.185
Then I find very few patterns in the guest's memory after 5 seconds 7.655

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:339 1.021
After features/support/hooks.rb:108 0.000
19.403
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 6.086
And I prepare Tails for memory erasure tests 0.308
And I find very few patterns in the guest's memory 2.685

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.452
Then patterns cover at least 99% of the test FS size in the guest's memory 2.866

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

When I umount "/mnt" 0.337
Then I find very few patterns in the guest's memory after 3 seconds 5.666

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.784
After features/support/hooks.rb:108 0.000
35.698
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 6.112
And I prepare Tails for memory erasure tests 0.271
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.012
Then I find very few patterns in the guest's memory 2.751

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.504
Then patterns cover at least 75% of the test FS size in the guest's memory 3.014

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

When I umount the USB drive 0.646
Then I find very few patterns in the guest's memory after 3 seconds 5.624

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.582
Then patterns cover at least 99% of the test FS size in the guest's memory 2.998

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

When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 5.605

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 1.008
After features/support/hooks.rb:108 0.000
1:11.904
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 17.880
And I prepare Tails for memory erasure tests 0.320
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.146
Then I find very few patterns in the guest's memory 2.575

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.181
Then patterns cover at least 99% of the test FS size in the guest's memory 2.823

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

When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 5.519

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# read cache
When I mount the USB drive again 4.315
And I read the content of the test FS 0.329
Then patterns cover at least 99% of the test FS size in the guest's memory 2.497

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

When I umount the USB drive 0.367
Then I find very few patterns in the guest's memory after 3 seconds 5.477

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.824
After features/support/hooks.rb:108 0.000
43.239
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 6.207
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the root filesystem 12.582
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.359
Then patterns cover at least 128 MiB in the guest's memory 2.113

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

When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.690

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:339 3.798
After features/support/hooks.rb:108 0.000
4:11.387
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 3:40.207
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.786
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.111

Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)

After features/support/hooks.rb:339 3.726
After features/support/hooks.rb:108 0.010