Project Number Date
test_Tails_ISO_21565-flatpak-safe 42 21 Sep 2026, 03:21

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 7:18.768 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.
19.386
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 6.209
And I prepare Tails for memory erasure tests 0.322
When I start a process allocating 128 MiB of memory with a known pattern 2.174
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.817

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

When I kill the allocating process 0.193
Then I find very few patterns in the guest's memory after 5 seconds 7.669

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

After features/support/hooks.rb:339 0.795
After features/support/hooks.rb:108 0.000
19.508
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 6.215
And I prepare Tails for memory erasure tests 0.272
And I find very few patterns in the guest's memory 2.730

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.899

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

When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 5.650

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 0.748
After features/support/hooks.rb:108 0.000
35.932
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 6.191
And I prepare Tails for memory erasure tests 0.260
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.117
Then I find very few patterns in the guest's memory 2.677

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.422
Then patterns cover at least 75% of the test FS size in the guest's memory 3.323

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

When I umount the USB drive 0.706
Then I find very few patterns in the guest's memory after 3 seconds 5.748

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.530
Then patterns cover at least 99% of the test FS size in the guest's memory 2.765

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

When I umount the USB drive 0.419
Then I find very few patterns in the guest's memory after 3 seconds 5.586

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

After features/support/hooks.rb:339 0.856
After features/support/hooks.rb:108 0.000
1:0.900
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 6.243
And I prepare Tails for memory erasure tests 0.273
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.248
Then I find very few patterns in the guest's memory 2.562

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.260
Then patterns cover at least 99% of the test FS size in the guest's memory 3.303

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

When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 5.511

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# read cache
When I mount the USB drive again 3.841
And I read the content of the test FS 0.310
Then patterns cover at least 99% of the test FS size in the guest's memory 2.589

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

When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.778

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

After features/support/hooks.rb:339 0.922
After features/support/hooks.rb:108 0.000
43.005
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 6.242
And I prepare Tails for memory erasure tests 0.274
When I fill a 128 MiB file with a known pattern on the root filesystem 12.012
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.314
Then patterns cover at least 128 MiB in the guest's memory 2.419

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 20.736

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

After features/support/hooks.rb:339 3.537
After features/support/hooks.rb:108 0.000
4:20.034
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 3:49.108
And I prepare Tails for memory erasure tests 0.245
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.639
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.035

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:339 3.657
After features/support/hooks.rb:108 0.009