Project Number Date
test_Tails_ISO_stable 6720 04 Oct 2026, 11:36

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 8:3.632 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
31.916
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 18.048
And I prepare Tails for memory erasure tests 0.335
When I start a process allocating 128 MiB of memory with a known pattern 2.186
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.874 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.734
Then I find very few patterns in the guest's memory after 5 seconds 7.738 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.789
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.165
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.405
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 2.863 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.430
Then patterns cover at least 99% of the test FS size in the guest's memory 2.908 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.351
Then I find very few patterns in the guest's memory after 3 seconds 5.843 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 0.625
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.119
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 18.173
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.335
Then I find very few patterns in the guest's memory 2.662 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.580
Then patterns cover at least 75% of the test FS size in the guest's memory 3.082 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.642
Then I find very few patterns in the guest's memory after 3 seconds 8.181 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.633
Then patterns cover at least 99% of the test FS size in the guest's memory 6.105 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 9.827 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.594
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.764
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 6.769
And I prepare Tails for memory erasure tests 0.281
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.827
Then I find very few patterns in the guest's memory 3.114 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.283
Then patterns cover at least 99% of the test FS size in the guest's memory 3.455 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 5.680 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
# read cache
When I mount the USB drive again 3.288
And I read the content of the test FS 0.405
Then patterns cover at least 99% of the test FS size in the guest's memory 2.818 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.751
Then I find very few patterns in the guest's memory after 3 seconds 5.551 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
After features/support/hooks.rb:339 0.967
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
46.390
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 6.766
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the root filesystem 13.663
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.519
Then patterns cover at least 128 MiB in the guest's memory 3.079 
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 21.056 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 3.613
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:25.277
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 3:54.372
And I prepare Tails for memory erasure tests 0.235
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.448
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.215 
Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)
After features/support/hooks.rb:339 3.399
After features/support/hooks.rb:108 0.012