Project Number Date
test_Tails_ISO_add-relevant-binary-packages-script 4 11 Oct 2026, 01:45

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 7:28.813 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.
19.278
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 6.126
And I prepare Tails for memory erasure tests 0.323
When I start a process allocating 128 MiB of memory with a known pattern 2.193
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.883

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

When I kill the allocating process 0.185
Then I find very few patterns in the guest's memory after 5 seconds 7.566

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.888
After features/support/hooks.rb:108 0.000
20.422
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 6.218
And I prepare Tails for memory erasure tests 0.330
And I find very few patterns in the guest's memory 2.780

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.537
Then patterns cover at least 99% of the test FS size in the guest's memory 3.046

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

When I umount "/mnt" 0.443
Then I find very few patterns in the guest's memory after 3 seconds 6.066

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.735
After features/support/hooks.rb:108 0.000
48.179
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 6.209
And I prepare Tails for memory erasure tests 0.314
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.320
Then I find very few patterns in the guest's memory 5.763

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

# write cache
When I fill the USB drive with a known pattern 2.623
Then patterns cover at least 75% of the test FS size in the guest's memory 6.897

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

When I umount the USB drive 0.668
Then I find very few patterns in the guest's memory after 3 seconds 7.738

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

# read cache
When I mount the USB drive again 0.188
And I read the content of the test FS 0.541
Then patterns cover at least 99% of the test FS size in the guest's memory 4.448

Pattern coverage: 100.000% (127 MiB out of 127 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 7.020

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

After features/support/hooks.rb:339 0.565
After features/support/hooks.rb:108 0.000
1:2.661
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 6.194
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.735
Then I find very few patterns in the guest's memory 3.364

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.076
Then patterns cover at least 99% of the test FS size in the guest's memory 2.916

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

When I umount the USB drive 0.516
Then I find very few patterns in the guest's memory after 3 seconds 5.464

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# read cache
When I mount the USB drive again 4.088
And I read the content of the test FS 0.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.737

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

When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory after 3 seconds 5.456

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.570
After features/support/hooks.rb:108 0.000
43.483
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 6.142
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the root filesystem 12.677
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.399
Then patterns cover at least 128 MiB in the guest's memory 2.144

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 20.807

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

After features/support/hooks.rb:339 3.522
After features/support/hooks.rb:108 0.000
4:14.787
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 3:44.375
And I prepare Tails for memory erasure tests 0.257
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.045
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.103

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 3.353
After features/support/hooks.rb:108 0.010