Project Number Date
test_Tails_ISO_stable 6354 05 May 2026, 16:10

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 7:37.124 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
17.198
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 6.580
And I prepare Tails for memory erasure tests 0.366
When I start a process allocating 128 MiB of memory with a known pattern 1.295
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.085 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 6.681 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.005
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.759
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 6.487
And I prepare Tails for memory erasure tests 0.392
And I find very few patterns in the guest's memory 2.008 
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 1.684
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002 
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 4.880 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.002
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.587
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 6.534
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.655
Then I find very few patterns in the guest's memory 1.796 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.513
Then patterns cover at least 75% of the test FS size in the guest's memory 2.093 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.802
Then I find very few patterns in the guest's memory after 3 seconds 4.779 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.439
Then patterns cover at least 99% of the test FS size in the guest's memory 2.088 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.972 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.676
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.419
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 6.763
And I prepare Tails for memory erasure tests 0.360
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.052
Then I find very few patterns in the guest's memory 1.788 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.470
Then patterns cover at least 99% of the test FS size in the guest's memory 1.815 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.558
Then I find very few patterns in the guest's memory after 3 seconds 4.738 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 3.611
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 1.791 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 4.722 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.133
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.944
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 6.776
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 25.915
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.737
Then patterns cover at least 128 MiB in the guest's memory 1.586 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.522 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.668
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:37.214
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 3:58.032
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.817
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.957 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.523
After features/support/hooks.rb:100 0.010