Project Number Date
test_Tails_ISO_update-onioncircuits-l10n-branch 2 15 Sep 2026, 15:23

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 7:47.254 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.
20.138
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 6.455
And I prepare Tails for memory erasure tests 0.314
When I start a process allocating 128 MiB of memory with a known pattern 2.242
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.171

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

When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 7.741

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

After features/support/hooks.rb:339 0.601
After features/support/hooks.rb:108 0.000
20.419
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 6.416
And I prepare Tails for memory erasure tests 0.321
And I find very few patterns in the guest's memory 3.064

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.494
Then patterns cover at least 99% of the test FS size in the guest's memory 3.102

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

When I umount "/mnt" 0.362
Then I find very few patterns in the guest's memory after 3 seconds 5.657

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

After features/support/hooks.rb:339 0.812
After features/support/hooks.rb:108 0.000
38.087
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 6.350
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.367
Then I find very few patterns in the guest's memory 2.894

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.627
Then patterns cover at least 75% of the test FS size in the guest's memory 3.531

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

When I umount the USB drive 0.689
Then I find very few patterns in the guest's memory after 3 seconds 6.001

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

# read cache
When I mount the USB drive again 0.189
And I read the content of the test FS 0.655
Then patterns cover at least 99% of the test FS size in the guest's memory 3.181

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

When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 5.818

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

After features/support/hooks.rb:339 0.636
After features/support/hooks.rb:108 0.000
1:3.018
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 6.266
And I prepare Tails for memory erasure tests 0.493
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.862
Then I find very few patterns in the guest's memory 3.128

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.223
Then patterns cover at least 99% of the test FS size in the guest's memory 2.833

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 5.618

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

# read cache
When I mount the USB drive again 3.739
And I read the content of the test FS 0.363
Then patterns cover at least 99% of the test FS size in the guest's memory 2.749

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

When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 5.804

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

After features/support/hooks.rb:339 0.712
After features/support/hooks.rb:108 0.000
44.343
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 6.701
And I prepare Tails for memory erasure tests 0.421
When I fill a 128 MiB file with a known pattern on the root filesystem 12.054
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.664
Then patterns cover at least 128 MiB in the guest's memory 2.666

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

When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.824

Pattern coverage: 0.000% (0 MiB out of 1430 MiB reference memory)

After features/support/hooks.rb:339 3.770
After features/support/hooks.rb:108 0.000
4:41.246
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:9.247
And I prepare Tails for memory erasure tests 0.234
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.535
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.212

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 3.545
After features/support/hooks.rb:108 0.038