Project Number Date
test_Tails_ISO_stable 6710 30 Sep 2026, 14:11

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 7:56.473 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
21.326
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 6.535
And I prepare Tails for memory erasure tests 0.356
When I start a process allocating 128 MiB of memory with a known pattern 2.223
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.963 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.789
Then I find very few patterns in the guest's memory after 5 seconds 8.457 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.995
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.899
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.858
And I prepare Tails for memory erasure tests 0.384
And I find very few patterns in the guest's memory 2.906 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.073
Then patterns cover at least 99% of the test FS size in the guest's memory 3.274 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.512
Then I find very few patterns in the guest's memory after 3 seconds 5.890 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
After features/support/hooks.rb:339 0.862
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
41.641
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 6.424
And I prepare Tails for memory erasure tests 0.330
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.492
Then I find very few patterns in the guest's memory 3.016 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.959
Then patterns cover at least 75% of the test FS size in the guest's memory 3.081 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.755
Then I find very few patterns in the guest's memory after 3 seconds 7.013 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 0.199
And I read the content of the test FS 0.658
Then patterns cover at least 99% of the test FS size in the guest's memory 3.078 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 6.187 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 1.398
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.973
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 7.054
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.402
Then I find very few patterns in the guest's memory 2.484 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.412
Then patterns cover at least 99% of the test FS size in the guest's memory 2.738 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 5.633 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# read cache
When I mount the USB drive again 4.151
And I read the content of the test FS 0.364
Then patterns cover at least 99% of the test FS size in the guest's memory 2.729 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 5.679 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
After features/support/hooks.rb:339 0.775
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
46.593
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 7.016
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the root filesystem 13.538
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.934
Then patterns cover at least 128 MiB in the guest's memory 2.576 
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 21.091 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 3.516
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:41.038
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 4:9.764
And I prepare Tails for memory erasure tests 0.249
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.770
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.249 
Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)
After features/support/hooks.rb:339 3.726
After features/support/hooks.rb:108 0.017