Project Number Date
test_Tails_ISO_21565-flatpak-safe 36 16 Sep 2026, 03:19

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 7:19.410 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.
19.338
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 6.144
And I prepare Tails for memory erasure tests 0.259
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.847

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

When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 7.680

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

After features/support/hooks.rb:339 0.964
After features/support/hooks.rb:108 0.000
19.466
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 6.122
And I prepare Tails for memory erasure tests 0.260
And I find very few patterns in the guest's memory 2.626

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.565
Then patterns cover at least 99% of the test FS size in the guest's memory 2.831

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

When I umount "/mnt" 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.682

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

After features/support/hooks.rb:339 0.752
After features/support/hooks.rb:108 0.000
36.344
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 6.130
And I prepare Tails for memory erasure tests 0.276
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.241
Then I find very few patterns in the guest's memory 2.657

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.570
Then patterns cover at least 75% of the test FS size in the guest's memory 3.104

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

When I umount the USB drive 0.650
Then I find very few patterns in the guest's memory after 3 seconds 5.835

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.548
Then patterns cover at least 99% of the test FS size in the guest's memory 3.000

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

When I umount the USB drive 0.448
Then I find very few patterns in the guest's memory after 3 seconds 5.709

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.866
After features/support/hooks.rb:108 0.000
1:1.061
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 6.163
And I prepare Tails for memory erasure tests 0.287
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.163
Then I find very few patterns in the guest's memory 2.532

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

# write cache
When I fill the USB drive with a known pattern 1.203
Then patterns cover at least 99% of the test FS size in the guest's memory 2.694

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

When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 5.665

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

# read cache
When I mount the USB drive again 3.636
And I read the content of the test FS 0.301
Then patterns cover at least 99% of the test FS size in the guest's memory 2.874

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

When I umount the USB drive 0.459
Then I find very few patterns in the guest's memory after 3 seconds 5.597

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

After features/support/hooks.rb:339 0.695
After features/support/hooks.rb:108 0.000
43.909
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 6.166
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the root filesystem 13.139
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.472
Then patterns cover at least 128 MiB in the guest's memory 2.100

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 20.730

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

After features/support/hooks.rb:339 3.622
After features/support/hooks.rb:108 0.000
4:19.289
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:47.271
And I prepare Tails for memory erasure tests 0.255
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.693
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.066

Pattern coverage: 0.000% (0 MiB out of 1390 MiB reference memory)

After features/support/hooks.rb:339 3.410
After features/support/hooks.rb:108 0.019