Project Number Date
test_Tails_ISO_remove-boum.org 2 09 Sep 2026, 20:33

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 7:48.050 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.
20.842
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.475
And I prepare Tails for memory erasure tests 0.333
When I start a process allocating 128 MiB of memory with a known pattern 2.206
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.753

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

When I kill the allocating process 0.214
Then I find very few patterns in the guest's memory after 5 seconds 8.859

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 0.909
After features/support/hooks.rb:108 0.000
26.215
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 6.493
And I prepare Tails for memory erasure tests 0.304
And I find very few patterns in the guest's memory 4.482

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.449
Then patterns cover at least 99% of the test FS size in the guest's memory 5.124

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

When I umount "/mnt" 0.434
Then I find very few patterns in the guest's memory after 3 seconds 7.927

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 1.012
After features/support/hooks.rb:108 0.000
43.990
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 6.560
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.721
Then I find very few patterns in the guest's memory 5.019

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.596
Then patterns cover at least 75% of the test FS size in the guest's memory 4.620

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

When I umount the USB drive 0.677
Then I find very few patterns in the guest's memory after 3 seconds 7.035

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 3.741

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

When I umount the USB drive 0.377
Then I find very few patterns in the guest's memory after 3 seconds 6.389

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.813
After features/support/hooks.rb:108 0.000
1:2.986
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 6.594
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.431
Then I find very few patterns in the guest's memory 2.801

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.234
Then patterns cover at least 99% of the test FS size in the guest's memory 2.832

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

When I umount the USB drive 0.553
Then I find very few patterns in the guest's memory after 3 seconds 5.776

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# read cache
When I mount the USB drive again 4.034
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 2.750

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

When I umount the USB drive 0.529
Then I find very few patterns in the guest's memory after 3 seconds 5.745

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.847
After features/support/hooks.rb:108 0.000
45.020
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 6.649
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the root filesystem 13.283
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.492
Then patterns cover at least 128 MiB in the guest's memory 2.345

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 20.862

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

After features/support/hooks.rb:339 3.527
After features/support/hooks.rb:108 0.000
4:28.994
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 3:57.590
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.969
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.134

Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)

After features/support/hooks.rb:339 3.802
After features/support/hooks.rb:108 0.040