Project Number Date
test_Tails_ISO_add-team-sprint-template 2 21 May 2026, 17:26

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 7:40.269 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.
18.089
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 6.650
And I prepare Tails for memory erasure tests 0.371
When I start a process allocating 128 MiB of memory with a known pattern 1.216
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.693

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

When I kill the allocating process 0.226
Then I find very few patterns in the guest's memory after 5 seconds 6.930

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

After features/support/hooks.rb:335 0.707
After features/support/hooks.rb:104 0.000
18.348
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 6.711
And I prepare Tails for memory erasure tests 0.417
And I find very few patterns in the guest's memory 1.825

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.760
Then patterns cover at least 99% of the test FS size in the guest's memory 2.384

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

When I umount "/mnt" 0.337
Then I find very few patterns in the guest's memory after 3 seconds 4.911

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

After features/support/hooks.rb:335 0.984
After features/support/hooks.rb:104 0.000
34.721
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 6.808
And I prepare Tails for memory erasure tests 0.481
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.453
Then I find very few patterns in the guest's memory 2.000

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

# write cache
When I fill the USB drive with a known pattern 2.704
Then patterns cover at least 75% of the test FS size in the guest's memory 2.243

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

When I umount the USB drive 0.753
Then I find very few patterns in the guest's memory after 3 seconds 4.834

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

# read cache
When I mount the USB drive again 0.269
And I read the content of the test FS 0.551
Then patterns cover at least 99% of the test FS size in the guest's memory 2.223

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

When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 5.015

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

After features/support/hooks.rb:335 1.102
After features/support/hooks.rb:104 0.000
57.354
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.005
Given I have started Tails from DVD without network and logged in 6.921
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.892
Then I find very few patterns in the guest's memory 1.941

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.592
Then patterns cover at least 99% of the test FS size in the guest's memory 2.011

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

When I umount the USB drive 0.562
Then I find very few patterns in the guest's memory after 3 seconds 4.720

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

# read cache
When I mount the USB drive again 3.463
And I read the content of the test FS 0.369
Then patterns cover at least 99% of the test FS size in the guest's memory 1.998

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

When I umount the USB drive 0.480
Then I find very few patterns in the guest's memory after 3 seconds 4.998

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

After features/support/hooks.rb:335 1.094
After features/support/hooks.rb:104 0.000
53.066
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 6.981
And I prepare Tails for memory erasure tests 0.329
When I fill a 128 MiB file with a known pattern on the root filesystem 21.262
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.199
Then patterns cover at least 128 MiB in the guest's memory 1.601

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.677

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

After features/support/hooks.rb:335 3.584
After features/support/hooks.rb:104 0.000
4:38.689
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.010
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.197
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.176
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.925

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

After features/support/hooks.rb:335 3.621
After features/support/hooks.rb:104 0.024