Project Number Date
test_Tails_ISO_21565-flatpak-safe 69 05 Oct 2026, 18:06

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 7:28.493 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.
20.477
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 6.262
And I prepare Tails for memory erasure tests 0.473
When I start a process allocating 128 MiB of memory with a known pattern 2.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.968

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

When I kill the allocating process 0.835
Then I find very few patterns in the guest's memory after 5 seconds 7.713

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.746
After features/support/hooks.rb:108 0.000
20.116
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 6.392
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 2.811

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.500
Then patterns cover at least 99% of the test FS size in the guest's memory 3.018

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

When I umount "/mnt" 0.395
Then I find very few patterns in the guest's memory after 3 seconds 5.665

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

After features/support/hooks.rb:339 0.679
After features/support/hooks.rb:108 0.000
36.934
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 6.346
And I prepare Tails for memory erasure tests 0.285
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.386
Then I find very few patterns in the guest's memory 2.704

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.564
Then patterns cover at least 75% of the test FS size in the guest's memory 2.974

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

When I umount the USB drive 0.644
Then I find very few patterns in the guest's memory after 3 seconds 5.949

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

# read cache
When I mount the USB drive again 0.236
And I read the content of the test FS 0.704
Then patterns cover at least 99% of the test FS size in the guest's memory 2.950

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 5.740

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

After features/support/hooks.rb:339 0.793
After features/support/hooks.rb:108 0.000
1:2.962
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 6.263
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.988
Then I find very few patterns in the guest's memory 2.521

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

# write cache
When I fill the USB drive with a known pattern 1.093
Then patterns cover at least 99% of the test FS size in the guest's memory 2.708

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

When I umount the USB drive 0.519
Then I find very few patterns in the guest's memory after 3 seconds 5.650

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

# read cache
When I mount the USB drive again 4.461
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 2.806

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

When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 5.739

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

After features/support/hooks.rb:339 0.775
After features/support/hooks.rb:108 0.000
45.628
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 6.348
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 13.868
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.666
Then patterns cover at least 128 MiB in the guest's memory 2.520

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.827

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 3.408
After features/support/hooks.rb:108 0.000
4:22.374
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 3:50.338
And I prepare Tails for memory erasure tests 0.256
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.606
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.168

Pattern coverage: 0.000% (0 MiB out of 1434 MiB reference memory)

After features/support/hooks.rb:339 3.835
After features/support/hooks.rb:108 0.010