Project Number Date
test_Tails_ISO_stable 6573 11 Aug 2026, 11:57

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 7:33.679 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
19.904
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 6.366
And I prepare Tails for memory erasure tests 0.311
When I start a process allocating 128 MiB of memory with a known pattern 2.190
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.848 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 7.996 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.848
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.955
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 6.325
And I prepare Tails for memory erasure tests 0.340
And I find very few patterns in the guest's memory 2.609 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.547
Then patterns cover at least 99% of the test FS size in the guest's memory 2.976 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.739 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.783
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.505
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.416
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.097
Then I find very few patterns in the guest's memory 2.726 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.863
Then patterns cover at least 75% of the test FS size in the guest's memory 3.040 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.765
Then I find very few patterns in the guest's memory after 3 seconds 5.679 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.660
Then patterns cover at least 99% of the test FS size in the guest's memory 2.746 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 5.540 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.708
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.559
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 6.628
And I prepare Tails for memory erasure tests 0.302
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.881
Then I find very few patterns in the guest's memory 2.710 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.205
Then patterns cover at least 99% of the test FS size in the guest's memory 2.940 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 5.544 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 3.918
And I read the content of the test FS 0.293
Then patterns cover at least 99% of the test FS size in the guest's memory 2.730 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.455 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.653
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.202
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 6.303
And I prepare Tails for memory erasure tests 0.327
When I fill a 128 MiB file with a known pattern on the root filesystem 12.995
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.634
Then patterns cover at least 128 MiB in the guest's memory 2.212 
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 20.723 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 3.879
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.551
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 3:59.676
And I prepare Tails for memory erasure tests 0.319
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.356
When I trigger shutdown 0.034
Then I find very few patterns in the guest's memory after 20 seconds 21.165 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:339 3.597
After features/support/hooks.rb:108 0.041