Project Number Date
test_Tails_ISO_stable 6314 21 Apr 2026, 11:41

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 7:51.757 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
17.933
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 6.890
And I prepare Tails for memory erasure tests 0.438
When I start a process allocating 128 MiB of memory with a known pattern 1.127
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.219 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.365
Then I find very few patterns in the guest's memory after 5 seconds 6.892 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 0.914
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.389
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 6.968
And I prepare Tails for memory erasure tests 0.422
And I find very few patterns in the guest's memory 1.720 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.524
Then patterns cover at least 99% of the test FS size in the guest's memory 2.503 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.447
Then I find very few patterns in the guest's memory after 3 seconds 4.803 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.014
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.190
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 6.814
And I prepare Tails for memory erasure tests 0.357
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.608
Then I find very few patterns in the guest's memory 1.970 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.328
Then patterns cover at least 75% of the test FS size in the guest's memory 2.281 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.047
Then I find very few patterns in the guest's memory after 3 seconds 4.725 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# read cache
When I mount the USB drive again 0.193
And I read the content of the test FS 0.416
Then patterns cover at least 99% of the test FS size in the guest's memory 1.993 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 5.038 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.355
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.508
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 7.007
And I prepare Tails for memory erasure tests 0.437
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.369
Then I find very few patterns in the guest's memory 1.714 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.410
Then patterns cover at least 99% of the test FS size in the guest's memory 1.867 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.657
Then I find very few patterns in the guest's memory after 3 seconds 4.641 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 11.885
And I read the content of the test FS 0.337
Then patterns cover at least 99% of the test FS size in the guest's memory 1.836 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 4.741 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.836
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.663
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 6.934
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the root filesystem 12.935
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.276
Then patterns cover at least 128 MiB in the guest's memory 1.603 
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 20.521 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 3.526
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:40.071
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 4:6.897
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.600
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.230 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.770
After features/support/hooks.rb:100 0.009