Project Number Date
test_Tails_ISO_devel 4261 02 Mar 2026, 07:52

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 7:36.488 Passed
Tags: @product @slow @not_release_blocker
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.
Tags: @product @slow @not_release_blocker
18.618
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.761
And I prepare Tails for memory erasure tests 0.308
When I start a process allocating 128 MiB of memory with a known pattern 2.235
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.162 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 6.977 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.841
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.153
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.657
And I prepare Tails for memory erasure tests 0.395
And I find very few patterns in the guest's memory 1.864 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.171
Then patterns cover at least 99% of the test FS size in the guest's memory 2.258 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.821
Then I find very few patterns in the guest's memory after 3 seconds 4.983 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.557
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.897
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.562
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.301
Then I find very few patterns in the guest's memory 1.858 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.820
Then patterns cover at least 75% of the test FS size in the guest's memory 2.139 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.083
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.149
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 1.979 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.315
Then I find very few patterns in the guest's memory after 3 seconds 5.235 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.938
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.437
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.876
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.301
Then I find very few patterns in the guest's memory 1.762 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.216
Then patterns cover at least 99% of the test FS size in the guest's memory 2.019 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.487
Then I find very few patterns in the guest's memory after 3 seconds 4.815 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 3.458
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 1.739 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.360
Then I find very few patterns in the guest's memory after 3 seconds 4.726 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.925
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.275
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 7.037
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 12.965
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.782
Then patterns cover at least 128 MiB in the guest's memory 1.623 
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 20.507 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.841
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:45.107
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:13.803
And I prepare Tails for memory erasure tests 0.330
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.087
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.881 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.707
After features/support/hooks.rb:100 0.038