Project Number Date
test_Tails_ISO_21565-flatpak-safe 82 09 Oct 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 7:36.458 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.
20.076
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 6.193
And I prepare Tails for memory erasure tests 0.365
When I start a process allocating 128 MiB of memory with a known pattern 2.216
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.313

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

When I kill the allocating process 0.218
Then I find very few patterns in the guest's memory after 5 seconds 7.768

Pattern coverage: 0.000% (0 MiB out of 1374 MiB reference memory)

After features/support/hooks.rb:339 0.686
After features/support/hooks.rb:108 0.000
20.246
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 6.150
And I prepare Tails for memory erasure tests 0.337
And I find very few patterns in the guest's memory 2.863

Pattern coverage: 0.000% (0 MiB out of 1370 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.822
Then patterns cover at least 99% of the test FS size in the guest's memory 2.903

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

When I umount "/mnt" 0.484
Then I find very few patterns in the guest's memory after 3 seconds 5.684

Pattern coverage: 0.000% (0 MiB out of 1370 MiB reference memory)

After features/support/hooks.rb:339 0.948
After features/support/hooks.rb:108 0.000
37.475
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 6.155
And I prepare Tails for memory erasure tests 0.319
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.651
Then I find very few patterns in the guest's memory 2.803

Pattern coverage: 0.000% (0 MiB out of 1373 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.616
Then patterns cover at least 75% of the test FS size in the guest's memory 3.322

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

When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 5.669

Pattern coverage: 0.000% (0 MiB out of 1373 MiB reference memory)

# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.597
Then patterns cover at least 99% of the test FS size in the guest's memory 3.320

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

When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 5.751

Pattern coverage: 0.000% (0 MiB out of 1373 MiB reference memory)

After features/support/hooks.rb:339 0.715
After features/support/hooks.rb:108 0.000
1:1.098
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 6.169
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.422
Then I find very few patterns in the guest's memory 2.647

Pattern coverage: 0.000% (0 MiB out of 1381 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.284
Then patterns cover at least 99% of the test FS size in the guest's memory 2.711

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

When I umount the USB drive 0.578
Then I find very few patterns in the guest's memory after 3 seconds 5.638

Pattern coverage: 0.000% (0 MiB out of 1381 MiB reference memory)

# read cache
When I mount the USB drive again 4.064
And I read the content of the test FS 0.487
Then patterns cover at least 99% of the test FS size in the guest's memory 2.851

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

When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.460

Pattern coverage: 0.000% (0 MiB out of 1381 MiB reference memory)

After features/support/hooks.rb:339 0.640
After features/support/hooks.rb:108 0.000
44.822
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 6.360
And I prepare Tails for memory erasure tests 0.359
When I fill a 128 MiB file with a known pattern on the root filesystem 13.261
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.629
Then patterns cover at least 128 MiB in the guest's memory 2.251

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 20.952

Pattern coverage: 0.000% (0 MiB out of 1382 MiB reference memory)

After features/support/hooks.rb:339 3.763
After features/support/hooks.rb:108 0.000
4:32.739
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.042
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.254
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.147

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:339 3.550
After features/support/hooks.rb:108 0.010