Project Number Date
test_Tails_ISO_21565-flatpak-safe 28 07 Sep 2026, 03:18

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 7:25.215 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.
30.894
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 17.788
And I prepare Tails for memory erasure tests 0.338
When I start a process allocating 128 MiB of memory with a known pattern 2.173
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.840

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

When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 7.580

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

After features/support/hooks.rb:339 0.830
After features/support/hooks.rb:108 0.000
20.232
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 6.263
And I prepare Tails for memory erasure tests 0.343
And I find very few patterns in the guest's memory 2.639

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.498
Then patterns cover at least 99% of the test FS size in the guest's memory 3.283

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

When I umount "/mnt" 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.803

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

After features/support/hooks.rb:339 1.011
After features/support/hooks.rb:108 0.000
36.844
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 6.238
And I prepare Tails for memory erasure tests 0.302
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.273
Then I find very few patterns in the guest's memory 2.843

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.586
Then patterns cover at least 75% of the test FS size in the guest's memory 3.120

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

When I umount the USB drive 0.657
Then I find very few patterns in the guest's memory after 3 seconds 5.853

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.559
Then patterns cover at least 99% of the test FS size in the guest's memory 2.926

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

When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 5.907

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.885
After features/support/hooks.rb:108 0.000
1:2.006
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 6.179
And I prepare Tails for memory erasure tests 0.423
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.581
Then I find very few patterns in the guest's memory 2.565

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.148
Then patterns cover at least 99% of the test FS size in the guest's memory 2.830

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

When I umount the USB drive 0.533
Then I find very few patterns in the guest's memory after 3 seconds 5.591

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

# read cache
When I mount the USB drive again 4.119
And I read the content of the test FS 0.308
Then patterns cover at least 99% of the test FS size in the guest's memory 2.854

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

When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.460

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

After features/support/hooks.rb:339 0.746
After features/support/hooks.rb:108 0.000
43.199
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 6.200
And I prepare Tails for memory erasure tests 0.284
When I fill a 128 MiB file with a known pattern on the root filesystem 12.340
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.485
Then patterns cover at least 128 MiB in the guest's memory 2.161

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 20.722

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

After features/support/hooks.rb:339 3.919
After features/support/hooks.rb:108 0.000
4:12.038
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 3:40.643
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 9.922
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.198

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

After features/support/hooks.rb:339 3.601
After features/support/hooks.rb:108 0.009