Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 33 19 May 2026, 19:25

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 7:31.595 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.
19.025
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.878
And I prepare Tails for memory erasure tests 0.368
When I start a process allocating 128 MiB of memory with a known pattern 2.199
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.953

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

When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 7.434

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:335 0.801
After features/support/hooks.rb:104 0.000
17.805
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.768
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 1.703

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.618
Then patterns cover at least 99% of the test FS size in the guest's memory 1.961

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

When I umount "/mnt" 0.380
Then I find very few patterns in the guest's memory after 3 seconds 4.965

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:335 1.029
After features/support/hooks.rb:104 0.000
33.439
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.897
And I prepare Tails for memory erasure tests 0.380
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.357
Then I find very few patterns in the guest's memory 1.941

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.690
Then patterns cover at least 75% of the test FS size in the guest's memory 2.294

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

When I umount the USB drive 0.819
Then I find very few patterns in the guest's memory after 3 seconds 4.983

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# read cache
When I mount the USB drive again 0.224
And I read the content of the test FS 0.494
Then patterns cover at least 99% of the test FS size in the guest's memory 2.086

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

When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 4.790

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:335 0.885
After features/support/hooks.rb:104 0.000
59.913
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.787
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.131
Then I find very few patterns in the guest's memory 1.820

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.246
Then patterns cover at least 99% of the test FS size in the guest's memory 1.870

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

When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 4.748

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

# read cache
When I mount the USB drive again 4.984
And I read the content of the test FS 0.327
Then patterns cover at least 99% of the test FS size in the guest's memory 1.991

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

When I umount the USB drive 0.364
Then I find very few patterns in the guest's memory after 3 seconds 4.677

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:335 0.919
After features/support/hooks.rb:104 0.000
55.067
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.843
And I prepare Tails for memory erasure tests 0.460
When I fill a 128 MiB file with a known pattern on the root filesystem 23.304
# 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 2.082

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.545

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

After features/support/hooks.rb:335 3.514
After features/support/hooks.rb:104 0.000
4:26.344
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:46.481
And I prepare Tails for memory erasure tests 0.317
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.328
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.209

Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)

After features/support/hooks.rb:335 3.456
After features/support/hooks.rb:104 0.011