Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 59 12 Jun 2026, 12:53

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 7:50.133 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.
19.151
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 7.284
And I prepare Tails for memory erasure tests 0.335
When I start a process allocating 128 MiB of memory with a known pattern 2.207
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.133

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

When I kill the allocating process 0.201
Then I find very few patterns in the guest's memory after 5 seconds 6.989

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

After features/support/hooks.rb:339 0.722
After features/support/hooks.rb:108 0.000
17.986
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 7.055
And I prepare Tails for memory erasure tests 0.319
And I find very few patterns in the guest's memory 1.641

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.744
Then patterns cover at least 99% of the test FS size in the guest's memory 1.983

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

When I umount "/mnt" 0.424
Then I find very few patterns in the guest's memory after 3 seconds 4.817

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

After features/support/hooks.rb:339 0.855
After features/support/hooks.rb:108 0.000
32.861
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 6.998
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.179
Then I find very few patterns in the guest's memory 1.915

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

# write cache
When I fill the USB drive with a known pattern 2.787
Then patterns cover at least 75% of the test FS size in the guest's memory 2.202

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

When I umount the USB drive 0.742
Then I find very few patterns in the guest's memory after 3 seconds 4.904

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

# read cache
When I mount the USB drive again 0.195
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 1.909

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

When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 4.869

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

After features/support/hooks.rb:339 0.963
After features/support/hooks.rb:108 0.000
59.138
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 7.602
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" 28.587
Then I find very few patterns in the guest's memory 1.829

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

# write cache
When I fill the USB drive with a known pattern 1.338
Then patterns cover at least 99% of the test FS size in the guest's memory 2.016

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

When I umount the USB drive 0.603
Then I find very few patterns in the guest's memory after 3 seconds 5.046

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

# read cache
When I mount the USB drive again 4.244
And I read the content of the test FS 0.309
Then patterns cover at least 99% of the test FS size in the guest's memory 1.944

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

When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory after 3 seconds 4.837

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

After features/support/hooks.rb:339 0.668
After features/support/hooks.rb:108 0.000
59.926
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 7.304
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the root filesystem 28.321
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.497
Then patterns cover at least 128 MiB in the guest's memory 1.793

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 20.581

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

After features/support/hooks.rb:339 3.726
After features/support/hooks.rb:108 0.000
4:41.068
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.497
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.076
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.099

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

After features/support/hooks.rb:339 3.662
After features/support/hooks.rb:108 0.036