Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 14 08 May 2026, 14:24

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 7:38.137 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.
18.593
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.081
And I prepare Tails for memory erasure tests 0.342
When I start a process allocating 128 MiB of memory with a known pattern 2.235
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.011

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

When I kill the allocating process 0.202
Then I find very few patterns in the guest's memory after 5 seconds 6.719

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

After features/support/hooks.rb:331 0.667
After features/support/hooks.rb:100 0.000
17.839
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.659
And I prepare Tails for memory erasure tests 0.449
And I find very few patterns in the guest's memory 1.829

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.745
Then patterns cover at least 99% of the test FS size in the guest's memory 2.029

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

When I umount "/mnt" 0.391
Then I find very few patterns in the guest's memory after 3 seconds 4.733

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

After features/support/hooks.rb:331 0.938
After features/support/hooks.rb:100 0.000
32.522
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.595
And I prepare Tails for memory erasure tests 0.528
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.607
Then I find very few patterns in the guest's memory 1.989

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.644
Then patterns cover at least 75% of the test FS size in the guest's memory 1.946

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

When I umount the USB drive 0.703
Then I find very few patterns in the guest's memory after 3 seconds 4.759

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 1.944

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

When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 4.783

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

After features/support/hooks.rb:331 0.740
After features/support/hooks.rb:100 0.000
58.930
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.597
And I prepare Tails for memory erasure tests 0.346
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.961
Then I find very few patterns in the guest's memory 1.761

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

# write cache
When I fill the USB drive with a known pattern 1.412
Then patterns cover at least 99% of the test FS size in the guest's memory 1.873

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

When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 4.604

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

# read cache
When I mount the USB drive again 4.379
And I read the content of the test FS 0.291
Then patterns cover at least 99% of the test FS size in the guest's memory 2.094

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

When I umount the USB drive 0.419
Then I find very few patterns in the guest's memory after 3 seconds 4.645

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

After features/support/hooks.rb:331 0.892
After features/support/hooks.rb:100 0.000
55.855
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.655
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the root filesystem 24.707
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.858
Then patterns cover at least 128 MiB in the guest's memory 1.646

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 20.634

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

After features/support/hooks.rb:331 3.949
After features/support/hooks.rb:100 0.000
4:34.395
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:54.641
And I prepare Tails for memory erasure tests 0.441
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.158
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.148

Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)

After features/support/hooks.rb:331 3.873
After features/support/hooks.rb:100 0.031