Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 76 28 Jun 2026, 14:30

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 7:59.757 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.
18.118
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 6.531
And I prepare Tails for memory erasure tests 0.387
When I start a process allocating 128 MiB of memory with a known pattern 2.241
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.112

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

When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 6.633

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.612
After features/support/hooks.rb:108 0.000
17.648
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 6.485
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 2.207

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.503
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860

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

When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 4.827

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

After features/support/hooks.rb:339 0.565
After features/support/hooks.rb:108 0.000
31.990
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 6.445
And I prepare Tails for memory erasure tests 0.321
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.505
Then I find very few patterns in the guest's memory 1.766

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.603
Then patterns cover at least 75% of the test FS size in the guest's memory 2.101

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

When I umount the USB drive 0.800
Then I find very few patterns in the guest's memory after 3 seconds 4.682

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 1.928

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

When I umount the USB drive 0.380
Then I find very few patterns in the guest's memory after 3 seconds 4.854

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:339 0.803
After features/support/hooks.rb:108 0.000
59.552
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 6.705
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.236
Then I find very few patterns in the guest's memory 1.746

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

# write cache
When I fill the USB drive with a known pattern 1.215
Then patterns cover at least 99% of the test FS size in the guest's memory 2.035

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

When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory after 3 seconds 4.602

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

# read cache
When I mount the USB drive again 4.036
And I read the content of the test FS 0.291
Then patterns cover at least 99% of the test FS size in the guest's memory 1.798

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

When I umount the USB drive 0.384
Then I find very few patterns in the guest's memory after 3 seconds 4.619

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

After features/support/hooks.rb:339 0.743
After features/support/hooks.rb:108 0.000
1:2.025
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 6.612
And I prepare Tails for memory erasure tests 0.304
When I fill a 128 MiB file with a known pattern on the root filesystem 31.551
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.529
Then patterns cover at least 128 MiB in the guest's memory 1.524

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.497

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 3.564
After features/support/hooks.rb:108 0.000
4:50.421
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 4:2.487
And I prepare Tails for memory erasure tests 0.306
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.563
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.059

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:339 3.432
After features/support/hooks.rb:108 0.013