Project Number Date
test_Tails_ISO_21565-flatpak-safe 132 09 Nov 2026, 03:28

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 7:17.495 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.
19.692
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 6.220
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 2.159
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.811

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

When I kill the allocating process 0.203
Then I find very few patterns in the guest's memory after 5 seconds 7.892

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

After features/support/hooks.rb:339 1.037
After features/support/hooks.rb:108 0.000
20.456
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 6.182
And I prepare Tails for memory erasure tests 0.354
And I find very few patterns in the guest's memory 3.328

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.592
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829

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

When I umount "/mnt" 0.414
Then I find very few patterns in the guest's memory after 3 seconds 5.754

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

After features/support/hooks.rb:339 0.744
After features/support/hooks.rb:108 0.000
36.113
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.014
Given I have started Tails from DVD without network and logged in 6.236
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.146
Then I find very few patterns in the guest's memory 2.424

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

# write cache
When I fill the USB drive with a known pattern 2.673
Then patterns cover at least 75% of the test FS size in the guest's memory 2.946

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

When I umount the USB drive 0.693
Then I find very few patterns in the guest's memory after 3 seconds 5.825

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

# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.564
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829

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

When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 5.856

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

After features/support/hooks.rb:339 0.612
After features/support/hooks.rb:108 0.000
1:0.383
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 6.343
And I prepare Tails for memory erasure tests 0.311
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.426
Then I find very few patterns in the guest's memory 2.750

Pattern coverage: 0.000% (0 MiB out of 1389 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 3.296

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

When I umount the USB drive 0.541
Then I find very few patterns in the guest's memory after 3 seconds 5.445

Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)

# read cache
When I mount the USB drive again 3.914
And I read the content of the test FS 0.325
Then patterns cover at least 99% of the test FS size in the guest's memory 2.563

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

When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 5.721

Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)

After features/support/hooks.rb:339 0.900
After features/support/hooks.rb:108 0.000
44.510
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 6.172
And I prepare Tails for memory erasure tests 0.285
When I fill a 128 MiB file with a known pattern on the root filesystem 13.422
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.586
Then patterns cover at least 128 MiB in the guest's memory 2.240

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 20.796

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

After features/support/hooks.rb:339 3.515
After features/support/hooks.rb:108 0.000
4:16.337
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 3:44.747
And I prepare Tails for memory erasure tests 0.211
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.271
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.103

Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)

After features/support/hooks.rb:339 3.849
After features/support/hooks.rb:108 0.009