Project Number Date
test_Tails_ISO_21565-flatpak-safe 92 18 Oct 2026, 03:22

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 7:25.779 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.
19.896
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 6.140
And I prepare Tails for memory erasure tests 0.322
When I start a process allocating 128 MiB of memory with a known pattern 2.170
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.929

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

When I kill the allocating process 0.752
Then I find very few patterns in the guest's memory after 5 seconds 7.580

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.826
After features/support/hooks.rb:108 0.000
23.976
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 6.136
And I prepare Tails for memory erasure tests 0.297
And I find very few patterns in the guest's memory 3.294

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.783
Then patterns cover at least 99% of the test FS size in the guest's memory 5.022

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

When I umount "/mnt" 0.445
Then I find very few patterns in the guest's memory after 3 seconds 6.996

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 0.755
After features/support/hooks.rb:108 0.000
37.386
Before features/support/hooks.rb:274 0.003
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.282
And I prepare Tails for memory erasure tests 0.277
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.288
Then I find very few patterns in the guest's memory 3.360

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

# write cache
When I fill the USB drive with a known pattern 2.764
Then patterns cover at least 75% of the test FS size in the guest's memory 3.179

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

When I umount the USB drive 0.774
Then I find very few patterns in the guest's memory after 3 seconds 5.664

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

# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.574
Then patterns cover at least 99% of the test FS size in the guest's memory 2.846

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

When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.749

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

After features/support/hooks.rb:339 0.805
After features/support/hooks.rb:108 0.000
1:3.431
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 6.220
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.659
Then I find very few patterns in the guest's memory 2.458

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.266
Then patterns cover at least 99% of the test FS size in the guest's memory 2.860

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

When I umount the USB drive 0.543
Then I find very few patterns in the guest's memory after 3 seconds 5.377

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# read cache
When I mount the USB drive again 4.205
And I read the content of the test FS 0.306
Then patterns cover at least 99% of the test FS size in the guest's memory 2.408

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

When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 5.403

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 0.835
After features/support/hooks.rb:108 0.000
43.320
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 6.394
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the root filesystem 11.957
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.407
Then patterns cover at least 128 MiB in the guest's memory 2.480

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

When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.728

Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)

After features/support/hooks.rb:339 3.827
After features/support/hooks.rb:108 0.000
4:17.768
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 3:45.462
And I prepare Tails for memory erasure tests 0.223
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.869
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.206

Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)

After features/support/hooks.rb:339 3.372
After features/support/hooks.rb:108 0.009