Project Number Date
test_Tails_ISO_stable 6371 12 May 2026, 13:27

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 8:5.328 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
18.253
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.121
And I prepare Tails for memory erasure tests 0.383
When I start a process allocating 128 MiB of memory with a known pattern 1.174
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.309 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.209
Then I find very few patterns in the guest's memory after 5 seconds 7.054 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:335 1.175
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
19.088
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.493
And I prepare Tails for memory erasure tests 0.419
And I find very few patterns in the guest's memory 1.998 
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 1.808
Then patterns cover at least 99% of the test FS size in the guest's memory 2.085 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.304
Then I find very few patterns in the guest's memory after 3 seconds 4.978 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:335 0.733
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
37.637
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.784
And I prepare Tails for memory erasure tests 0.588
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.567
Then I find very few patterns in the guest's memory 2.754 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.865
Then patterns cover at least 75% of the test FS size in the guest's memory 2.701 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.834
Then I find very few patterns in the guest's memory after 3 seconds 4.909 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.524
Then patterns cover at least 99% of the test FS size in the guest's memory 2.737 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.460
Then I find very few patterns in the guest's memory after 3 seconds 5.725 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:335 1.029
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:3.926
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.048
And I prepare Tails for memory erasure tests 0.589
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.545
Then I find very few patterns in the guest's memory 1.825 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.613
Then patterns cover at least 99% of the test FS size in the guest's memory 2.260 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.675
Then I find very few patterns in the guest's memory after 3 seconds 5.199 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 3.568
And I read the content of the test FS 0.314
Then patterns cover at least 99% of the test FS size in the guest's memory 2.283 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.479
Then I find very few patterns in the guest's memory after 3 seconds 5.522 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 1.016
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.433
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 7.875
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 21.789
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.920
Then patterns cover at least 128 MiB in the guest's memory 1.678 
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 20.695 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:335 3.971
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:51.989
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:13.133
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 17.596
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.923 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 3.838
After features/support/hooks.rb:104 0.010