Project Number Date
test_Tails_ISO_stable-flatpak 6 08 Sep 2026, 20:11

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 7:30.716 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.
19.688
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 6.430
And I prepare Tails for memory erasure tests 0.351
When I start a process allocating 128 MiB of memory with a known pattern 2.207
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.917

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

When I kill the allocating process 0.218
Then I find very few patterns in the guest's memory after 5 seconds 7.562

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 1.079
After features/support/hooks.rb:108 0.000
19.822
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 6.370
And I prepare Tails for memory erasure tests 0.297
And I find very few patterns in the guest's memory 2.466

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.581
Then patterns cover at least 99% of the test FS size in the guest's memory 2.940

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 5.783

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 0.977
After features/support/hooks.rb:108 0.000
36.698
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 6.324
And I prepare Tails for memory erasure tests 0.287
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.124
Then I find very few patterns in the guest's memory 3.056

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.486
Then patterns cover at least 75% of the test FS size in the guest's memory 3.189

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

When I umount the USB drive 0.720
Then I find very few patterns in the guest's memory after 3 seconds 5.780

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# read cache
When I mount the USB drive again 0.199
And I read the content of the test FS 0.624
Then patterns cover at least 99% of the test FS size in the guest's memory 2.843

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

When I umount the USB drive 0.450
Then I find very few patterns in the guest's memory after 3 seconds 5.610

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 1.067
After features/support/hooks.rb:108 0.000
59.860
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.014
Given I have started Tails from DVD without network and logged in 6.370
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.246
Then I find very few patterns in the guest's memory 2.576

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.332
Then patterns cover at least 99% of the test FS size in the guest's memory 2.842

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

When I umount the USB drive 0.535
Then I find very few patterns in the guest's memory after 3 seconds 5.487

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

# read cache
When I mount the USB drive again 3.340
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.738

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

When I umount the USB drive 0.396
Then I find very few patterns in the guest's memory after 3 seconds 5.278

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.911
After features/support/hooks.rb:108 0.000
44.353
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 6.381
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the root filesystem 12.943
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.690
Then patterns cover at least 128 MiB in the guest's memory 2.258

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

When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.737

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 3.660
After features/support/hooks.rb:108 0.000
4:30.293
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 3:58.821
And I prepare Tails for memory erasure tests 0.281
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.032
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.152

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

After features/support/hooks.rb:339 3.431
After features/support/hooks.rb:108 0.011