Project Number Date
test_Tails_ISO_devel 4352 20 Apr 2026, 11:20

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 7:44.966 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
19.540
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 6.530
And I prepare Tails for memory erasure tests 0.617
When I start a process allocating 128 MiB of memory with a known pattern 2.812
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.965 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.857
Then I find very few patterns in the guest's memory after 5 seconds 6.757 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.042
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.746
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 6.529
And I prepare Tails for memory erasure tests 0.558
And I find very few patterns in the guest's memory 1.688 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.606
Then patterns cover at least 99% of the test FS size in the guest's memory 2.115 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.466
Then I find very few patterns in the guest's memory after 3 seconds 4.780 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.118
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.584
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 6.547
And I prepare Tails for memory erasure tests 0.349
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.230
Then I find very few patterns in the guest's memory 1.905 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.257
Then patterns cover at least 75% of the test FS size in the guest's memory 2.022 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.812
Then I find very few patterns in the guest's memory after 3 seconds 4.680 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.199
And I read the content of the test FS 0.438
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.459
Then I find very few patterns in the guest's memory after 3 seconds 4.820 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.814
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:26.708
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 6.685
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.744
Then I find very few patterns in the guest's memory 1.686 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.413
Then patterns cover at least 99% of the test FS size in the guest's memory 1.696 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.866
Then I find very few patterns in the guest's memory after 3 seconds 4.604 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 22.111
And I read the content of the test FS 0.296
Then patterns cover at least 99% of the test FS size in the guest's memory 1.818 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.752
Then I find very few patterns in the guest's memory after 3 seconds 4.596 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.060
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.949
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 6.535
And I prepare Tails for memory erasure tests 0.705
When I fill a 128 MiB file with a known pattern on the root filesystem 12.272
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 15.383
Then patterns cover at least 128 MiB in the guest's memory 1.532 
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 20.510 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.696
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:10.436
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:38.197
And I prepare Tails for memory erasure tests 0.336
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.918
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.979 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 3.813
After features/support/hooks.rb:100 0.040