Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 44 26 May 2026, 18:29

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 7:26.560 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.
18.261
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 6.634
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 2.230
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.101

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

When I kill the allocating process 0.212
Then I find very few patterns in the guest's memory after 5 seconds 6.698

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:335 0.986
After features/support/hooks.rb:104 0.000
17.425
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 6.658
And I prepare Tails for memory erasure tests 0.354
And I find very few patterns in the guest's memory 1.813

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.703
Then patterns cover at least 99% of the test FS size in the guest's memory 1.853

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

When I umount "/mnt" 0.339
Then I find very few patterns in the guest's memory after 3 seconds 4.701

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

After features/support/hooks.rb:335 0.813
After features/support/hooks.rb:104 0.000
32.298
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 6.605
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.712
Then I find very few patterns in the guest's memory 1.909

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.508
Then patterns cover at least 75% of the test FS size in the guest's memory 1.941

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

When I umount the USB drive 0.682
Then I find very few patterns in the guest's memory after 3 seconds 4.775

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.436
Then patterns cover at least 99% of the test FS size in the guest's memory 1.961

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

When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 4.822

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:335 0.992
After features/support/hooks.rb:104 0.000
59.565
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 6.610
And I prepare Tails for memory erasure tests 0.303
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.646
Then I find very few patterns in the guest's memory 1.850

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.348
Then patterns cover at least 99% of the test FS size in the guest's memory 1.805

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

When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 4.663

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

# read cache
When I mount the USB drive again 4.374
And I read the content of the test FS 0.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938

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

When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 4.755

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

After features/support/hooks.rb:335 0.773
After features/support/hooks.rb:104 0.000
51.891
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 6.605
And I prepare Tails for memory erasure tests 0.342
When I fill a 128 MiB file with a known pattern on the root filesystem 20.794
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.897
Then patterns cover at least 128 MiB in the guest's memory 1.760

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 20.485

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:335 3.709
After features/support/hooks.rb:104 0.000
4:27.119
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 3:47.239
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.576
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.914

Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)

After features/support/hooks.rb:335 3.674
After features/support/hooks.rb:104 0.016