Project Number Date
test_Tails_ISO_21565-flatpak-safe 103 27 Oct 2026, 03:23

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 7:16.595 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 6.201
And I prepare Tails for memory erasure tests 0.282
When I start a process allocating 128 MiB of memory with a known pattern 2.232
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.776

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

When I kill the allocating process 0.187
Then I find very few patterns in the guest's memory after 5 seconds 7.657

Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)

After features/support/hooks.rb:339 0.832
After features/support/hooks.rb:108 0.000
20.031
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 6.154
And I prepare Tails for memory erasure tests 0.371
And I find very few patterns in the guest's memory 2.610

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.465
Then patterns cover at least 99% of the test FS size in the guest's memory 3.293

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

When I umount "/mnt" 0.376
Then I find very few patterns in the guest's memory after 3 seconds 5.759

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

After features/support/hooks.rb:339 0.724
After features/support/hooks.rb:108 0.000
36.175
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 6.225
And I prepare Tails for memory erasure tests 0.321
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.342
Then I find very few patterns in the guest's memory 2.680

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.486
Then patterns cover at least 75% of the test FS size in the guest's memory 3.011

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

When I umount the USB drive 0.702
Then I find very few patterns in the guest's memory after 3 seconds 5.573

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# read cache
When I mount the USB drive again 0.174
And I read the content of the test FS 0.519
Then patterns cover at least 99% of the test FS size in the guest's memory 2.969

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

When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 5.711

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 1.010
After features/support/hooks.rb:108 0.000
1:0.708
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 0.352
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.513
Then I find very few patterns in the guest's memory 2.541

Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.198
Then patterns cover at least 99% of the test FS size in the guest's memory 2.606

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

When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 5.530

Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)

# read cache
When I mount the USB drive again 3.730
And I read the content of the test FS 0.354
Then patterns cover at least 99% of the test FS size in the guest's memory 3.261

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

When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.443

Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)

After features/support/hooks.rb:339 1.005
After features/support/hooks.rb:108 0.000
43.842
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 6.188
And I prepare Tails for memory erasure tests 0.287
When I fill a 128 MiB file with a known pattern on the root filesystem 12.796
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.689
Then patterns cover at least 128 MiB in the guest's memory 2.143

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 20.728

Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)

After features/support/hooks.rb:339 3.688
After features/support/hooks.rb:108 0.000
4:16.498
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.939
And I prepare Tails for memory erasure tests 0.225
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.236
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.092

Pattern coverage: 0.000% (0 MiB out of 1435 MiB reference memory)

After features/support/hooks.rb:339 3.645
After features/support/hooks.rb:108 0.020