Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 34 19 May 2026, 19:42

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 7:45.781 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.
18.393
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 6.693
And I prepare Tails for memory erasure tests 0.376
When I start a process allocating 128 MiB of memory with a known pattern 2.215
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.003

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

When I kill the allocating process 0.268
Then I find very few patterns in the guest's memory after 5 seconds 6.835

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

After features/support/hooks.rb:335 0.904
After features/support/hooks.rb:104 0.000
18.050
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 6.550
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 1.758

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.636
Then patterns cover at least 99% of the test FS size in the guest's memory 2.485

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

When I umount "/mnt" 0.446
Then I find very few patterns in the guest's memory after 3 seconds 4.736

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:335 0.758
After features/support/hooks.rb:104 0.000
34.410
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 6.900
And I prepare Tails for memory erasure tests 0.371
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.662
Then I find very few patterns in the guest's memory 1.947

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.863
Then patterns cover at least 75% of the test FS size in the guest's memory 2.250

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

When I umount the USB drive 0.848
Then I find very few patterns in the guest's memory after 3 seconds 4.688

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.028

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

When I umount the USB drive 0.573
Then I find very few patterns in the guest's memory after 3 seconds 5.685

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:335 1.075
After features/support/hooks.rb:104 0.000
1:1.139
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 7.253
And I prepare Tails for memory erasure tests 0.362
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.252
Then I find very few patterns in the guest's memory 1.885

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.507
Then patterns cover at least 99% of the test FS size in the guest's memory 1.947

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

When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 4.560

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# read cache
When I mount the USB drive again 4.138
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 1.909

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

When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory after 3 seconds 5.012

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:335 0.784
After features/support/hooks.rb:104 0.001
58.733
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.010
Given I have started Tails from DVD without network and logged in 6.795
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the root filesystem 27.341
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.938
Then patterns cover at least 128 MiB in the guest's memory 1.666

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 20.600

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

After features/support/hooks.rb:335 3.914
After features/support/hooks.rb:104 0.000
4:35.054
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.769
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.799
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.108

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

After features/support/hooks.rb:335 3.728
After features/support/hooks.rb:104 0.009