Project Number Date
test_Tails_ISO_21565-flatpak-safe 86 12 Oct 2026, 12:10

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 7:36.904 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.
20.590
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 6.385
And I prepare Tails for memory erasure tests 0.306
When I start a process allocating 128 MiB of memory with a known pattern 2.318
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.986

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

When I kill the allocating process 0.773
Then I find very few patterns in the guest's memory after 5 seconds 7.819

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

After features/support/hooks.rb:339 0.725
After features/support/hooks.rb:108 0.000
20.527
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.593
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 2.646

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.802
Then patterns cover at least 99% of the test FS size in the guest's memory 3.008

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

When I umount "/mnt" 0.485
Then I find very few patterns in the guest's memory after 3 seconds 5.650

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 0.895
After features/support/hooks.rb:108 0.000
39.401
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 6.501
And I prepare Tails for memory erasure tests 0.487
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.897
Then I find very few patterns in the guest's memory 2.684

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.743
Then patterns cover at least 75% of the test FS size in the guest's memory 3.168

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

When I umount the USB drive 1.030
Then I find very few patterns in the guest's memory after 3 seconds 5.816

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.640
Then patterns cover at least 99% of the test FS size in the guest's memory 3.159

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 5.675

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

After features/support/hooks.rb:339 0.893
After features/support/hooks.rb:108 0.000
1:4.935
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 6.466
And I prepare Tails for memory erasure tests 0.342
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.928
Then I find very few patterns in the guest's memory 2.790

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

# write cache
When I fill the USB drive with a known pattern 1.035
Then patterns cover at least 99% of the test FS size in the guest's memory 3.380

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

When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory after 3 seconds 5.627

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

# read cache
When I mount the USB drive again 3.892
And I read the content of the test FS 0.302
Then patterns cover at least 99% of the test FS size in the guest's memory 2.696

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

When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 6.517

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

After features/support/hooks.rb:339 1.197
After features/support/hooks.rb:108 0.005
44.255
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.627
And I prepare Tails for memory erasure tests 0.345
When I fill a 128 MiB file with a known pattern on the root filesystem 12.370
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.824
Then patterns cover at least 128 MiB in the guest's memory 2.281

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 20.800

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

After features/support/hooks.rb:339 3.776
After features/support/hooks.rb:108 0.000
4:27.193
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 3:55.470
And I prepare Tails for memory erasure tests 0.287
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.322
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.106

Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)

After features/support/hooks.rb:339 3.500
After features/support/hooks.rb:108 0.032