Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 57 10 Jun 2026, 14:27

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 7:20.125 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.
19.244
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.007
Given I have started Tails from DVD without network and logged in 6.849
And I prepare Tails for memory erasure tests 0.336
When I start a process allocating 128 MiB of memory with a known pattern 2.339
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.905

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

When I kill the allocating process 0.897
Then I find very few patterns in the guest's memory after 5 seconds 6.916

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:335 1.101
After features/support/hooks.rb:104 0.000
18.070
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 6.918
And I prepare Tails for memory erasure tests 0.335
And I find very few patterns in the guest's memory 1.807

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.792
Then patterns cover at least 99% of the test FS size in the guest's memory 1.908

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

When I umount "/mnt" 0.402
Then I find very few patterns in the guest's memory after 3 seconds 4.905

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

After features/support/hooks.rb:335 0.762
After features/support/hooks.rb:104 0.000
31.811
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 6.794
And I prepare Tails for memory erasure tests 0.334
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.137
Then I find very few patterns in the guest's memory 1.658

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

# write cache
When I fill the USB drive with a known pattern 2.661
Then patterns cover at least 75% of the test FS size in the guest's memory 2.044

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

When I umount the USB drive 0.761
Then I find very few patterns in the guest's memory after 3 seconds 4.800

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

# read cache
When I mount the USB drive again 0.139
And I read the content of the test FS 0.418
Then patterns cover at least 99% of the test FS size in the guest's memory 1.892

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

When I umount the USB drive 0.483
Then I find very few patterns in the guest's memory after 3 seconds 4.685

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

After features/support/hooks.rb:335 0.998
After features/support/hooks.rb:104 0.000
58.916
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.514
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" 30.507
Then I find very few patterns in the guest's memory 1.650

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

# write cache
When I fill the USB drive with a known pattern 1.448
Then patterns cover at least 99% of the test FS size in the guest's memory 1.759

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

When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 4.597

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

# read cache
When I mount the USB drive again 4.453
And I read the content of the test FS 0.258
Then patterns cover at least 99% of the test FS size in the guest's memory 1.876

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

When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.586

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

After features/support/hooks.rb:335 0.874
After features/support/hooks.rb:104 0.000
53.932
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 6.494
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the root filesystem 23.215
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.920
Then patterns cover at least 128 MiB in the guest's memory 1.469

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 20.509

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:335 3.622
After features/support/hooks.rb:104 0.000
4:18.150
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 3:41.155
And I prepare Tails for memory erasure tests 0.321
When I fill a 128 MiB file with a known pattern on the persistent filesystem 15.801
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.862

Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)

After features/support/hooks.rb:335 3.643
After features/support/hooks.rb:104 0.008