Project Number Date
test_Tails_ISO_21691-gitlab-triage-use-trusted-image 1 23 Jul 2026, 16:38

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 8:1.783 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.
19.476
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.737
And I prepare Tails for memory erasure tests 0.470
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.679

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

When I kill the allocating process 0.265
Then I find very few patterns in the guest's memory after 5 seconds 7.086

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

After features/support/hooks.rb:339 1.071
After features/support/hooks.rb:108 0.000
18.329
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.702
And I prepare Tails for memory erasure tests 0.376
And I find very few patterns in the guest's memory 1.683

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.986
Then patterns cover at least 99% of the test FS size in the guest's memory 2.164

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

When I umount "/mnt" 0.472
Then I find very few patterns in the guest's memory after 3 seconds 4.943

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

After features/support/hooks.rb:339 1.055
After features/support/hooks.rb:108 0.000
34.701
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.706
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.029
Then I find very few patterns in the guest's memory 1.981

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

# write cache
When I fill the USB drive with a known pattern 2.577
Then patterns cover at least 75% of the test FS size in the guest's memory 2.157

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

When I umount the USB drive 0.756
Then I find very few patterns in the guest's memory after 3 seconds 4.827

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

# read cache
When I mount the USB drive again 0.215
And I read the content of the test FS 0.601
Then patterns cover at least 99% of the test FS size in the guest's memory 1.989

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

When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.047

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

After features/support/hooks.rb:339 1.155
After features/support/hooks.rb:108 0.000
1:3.257
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.790
And I prepare Tails for memory erasure tests 0.349
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.901
Then I find very few patterns in the guest's memory 1.955

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

# write cache
When I fill the USB drive with a known pattern 1.311
Then patterns cover at least 99% of the test FS size in the guest's memory 1.958

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

When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 4.758

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

# read cache
When I mount the USB drive again 4.973
And I read the content of the test FS 0.354
Then patterns cover at least 99% of the test FS size in the guest's memory 2.019

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

When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 4.887

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

After features/support/hooks.rb:339 1.110
After features/support/hooks.rb:108 0.000
53.595
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.698
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the root filesystem 22.231
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.047
Then patterns cover at least 128 MiB in the guest's memory 1.696

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.561

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

After features/support/hooks.rb:339 3.483
After features/support/hooks.rb:108 0.000
4:52.423
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:5.759
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.248
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.070

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

After features/support/hooks.rb:339 3.457
After features/support/hooks.rb:108 0.013