Project Number Date
test_Tails_ISO_21565-flatpak-safe 43 22 Sep 2026, 03:20

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 7:15.403 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.
19.445
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 6.212
And I prepare Tails for memory erasure tests 0.298
When I start a process allocating 128 MiB of memory with a known pattern 2.193
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.906

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

When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 7.659

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.892
After features/support/hooks.rb:108 0.000
19.802
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 6.152
And I prepare Tails for memory erasure tests 0.279
And I find very few patterns in the guest's memory 2.725

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.390
Then patterns cover at least 99% of the test FS size in the guest's memory 3.099

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

When I umount "/mnt" 0.370
Then I find very few patterns in the guest's memory after 3 seconds 5.784

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 0.982
After features/support/hooks.rb:108 0.000
35.957
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 6.208
And I prepare Tails for memory erasure tests 0.268
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.228
Then I find very few patterns in the guest's memory 2.659

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

# write cache
When I fill the USB drive with a known pattern 2.723
Then patterns cover at least 75% of the test FS size in the guest's memory 2.875

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

When I umount the USB drive 0.631
Then I find very few patterns in the guest's memory after 3 seconds 5.772

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

# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.556
Then patterns cover at least 99% of the test FS size in the guest's memory 2.739

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

When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 5.689

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

After features/support/hooks.rb:339 0.800
After features/support/hooks.rb:108 0.000
59.659
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 6.222
And I prepare Tails for memory erasure tests 0.282
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.221
Then I find very few patterns in the guest's memory 2.608

Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.138
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829

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

When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 5.423

Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)

# read cache
When I mount the USB drive again 3.559
And I read the content of the test FS 0.321
Then patterns cover at least 99% of the test FS size in the guest's memory 2.629

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

When I umount the USB drive 0.436
Then I find very few patterns in the guest's memory after 3 seconds 5.498

Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)

After features/support/hooks.rb:339 0.651
After features/support/hooks.rb:108 0.000
43.688
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 6.269
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the root filesystem 12.600
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.556
Then patterns cover at least 128 MiB in the guest's memory 2.191

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 20.754

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

After features/support/hooks.rb:339 3.855
After features/support/hooks.rb:108 0.000
4:16.851
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.278
And I prepare Tails for memory erasure tests 0.261
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.205
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.100

Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)

After features/support/hooks.rb:339 3.735
After features/support/hooks.rb:108 0.009