Project Number Date
test_Tails_ISO_21721-less-verbose-release-process 3 30 Aug 2026, 10:54

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 7:29.700 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.
20.221
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 6.498
And I prepare Tails for memory erasure tests 0.320
When I start a process allocating 128 MiB of memory with a known pattern 2.239
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.192

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

When I kill the allocating process 0.227
Then I find very few patterns in the guest's memory after 5 seconds 7.742

Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)

After features/support/hooks.rb:339 0.997
After features/support/hooks.rb:108 0.000
19.851
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 6.211
And I prepare Tails for memory erasure tests 0.326
And I find very few patterns in the guest's memory 2.701

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.434
Then patterns cover at least 99% of the test FS size in the guest's memory 2.990

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

When I umount "/mnt" 0.382
Then I find very few patterns in the guest's memory after 3 seconds 5.804

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

After features/support/hooks.rb:339 0.892
After features/support/hooks.rb:108 0.000
37.201
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.204
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.300
Then I find very few patterns in the guest's memory 2.647

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.797
Then patterns cover at least 75% of the test FS size in the guest's memory 3.179

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

When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 6.026

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# read cache
When I mount the USB drive again 0.182
And I read the content of the test FS 0.681
Then patterns cover at least 99% of the test FS size in the guest's memory 2.968

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

When I umount the USB drive 0.390
Then I find very few patterns in the guest's memory after 3 seconds 5.727

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:339 0.979
After features/support/hooks.rb:108 0.002
1:4.211
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 6.293
And I prepare Tails for memory erasure tests 0.295
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.887
Then I find very few patterns in the guest's memory 2.599

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

# write cache
When I fill the USB drive with a known pattern 1.267
Then patterns cover at least 99% of the test FS size in the guest's memory 2.781

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

When I umount the USB drive 0.549
Then I find very few patterns in the guest's memory after 3 seconds 5.577

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

# read cache
When I mount the USB drive again 4.724
And I read the content of the test FS 0.305
Then patterns cover at least 99% of the test FS size in the guest's memory 2.815

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

When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 5.665

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

After features/support/hooks.rb:339 1.033
After features/support/hooks.rb:108 0.000
44.213
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 6.257
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the root filesystem 13.067
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.422
Then patterns cover at least 128 MiB in the guest's memory 2.329

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.737

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

After features/support/hooks.rb:339 3.844
After features/support/hooks.rb:108 0.000
4:24.002
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 3:52.697
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.009
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.994

Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)

After features/support/hooks.rb:339 3.669
After features/support/hooks.rb:108 0.009