Project Number Date
test_Tails_ISO_21565-flatpak-safe 84 11 Oct 2026, 03:26

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 7:34.109 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.
20.659
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.357
And I prepare Tails for memory erasure tests 0.306
When I start a process allocating 128 MiB of memory with a known pattern 2.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.314

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

When I kill the allocating process 0.751
Then I find very few patterns in the guest's memory after 5 seconds 7.729

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

After features/support/hooks.rb:339 0.545
After features/support/hooks.rb:108 0.000
20.483
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 6.528
And I prepare Tails for memory erasure tests 0.316
And I find very few patterns in the guest's memory 3.007

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.399
Then patterns cover at least 99% of the test FS size in the guest's memory 2.991

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

When I umount "/mnt" 0.406
Then I find very few patterns in the guest's memory after 3 seconds 5.834

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

After features/support/hooks.rb:339 0.706
After features/support/hooks.rb:108 0.000
37.098
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 6.689
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.221
Then I find very few patterns in the guest's memory 2.753

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.446
Then patterns cover at least 75% of the test FS size in the guest's memory 3.439

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

When I umount the USB drive 0.689
Then I find very few patterns in the guest's memory after 3 seconds 5.525

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.603
Then patterns cover at least 99% of the test FS size in the guest's memory 2.917

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

When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 5.928

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

After features/support/hooks.rb:339 0.638
After features/support/hooks.rb:108 0.000
1:3.959
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.303
And I prepare Tails for memory erasure tests 0.308
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.584
Then I find very few patterns in the guest's memory 3.136

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

# write cache
When I fill the USB drive with a known pattern 1.054
Then patterns cover at least 99% of the test FS size in the guest's memory 3.217

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

When I umount the USB drive 0.583
Then I find very few patterns in the guest's memory after 3 seconds 6.314

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

# read cache
When I mount the USB drive again 3.897
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 3.665

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

When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 6.167

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

After features/support/hooks.rb:339 0.776
After features/support/hooks.rb:108 0.000
43.661
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.445
And I prepare Tails for memory erasure tests 0.251
When I fill a 128 MiB file with a known pattern on the root filesystem 12.142
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.638
Then patterns cover at least 128 MiB in the guest's memory 2.391

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.785

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 3.359
After features/support/hooks.rb:108 0.000
4:28.247
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 3:58.141
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.550
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.205

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 3.468
After features/support/hooks.rb:108 0.011