Project Number Date
test_Tails_ISO_stable 6712 30 Sep 2026, 17:29

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 8:1.303 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
20.317
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 0.374
When I start a process allocating 128 MiB of memory with a known pattern 2.259
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.010 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.241
Then I find very few patterns in the guest's memory after 5 seconds 7.896 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
After features/support/hooks.rb:339 0.892
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.876
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 6.596
And I prepare Tails for memory erasure tests 0.357
And I find very few patterns in the guest's memory 3.070 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.516
Then patterns cover at least 99% of the test FS size in the guest's memory 2.925 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.381
Then I find very few patterns in the guest's memory after 3 seconds 6.027 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.962
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
51.071
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 18.404
And I prepare Tails for memory erasure tests 0.486
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.735
Then I find very few patterns in the guest's memory 3.010 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.802
Then patterns cover at least 75% of the test FS size in the guest's memory 3.208 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.722
Then I find very few patterns in the guest's memory after 3 seconds 6.674 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.678
Then patterns cover at least 99% of the test FS size in the guest's memory 2.914 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 5.780 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 0.647
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.973
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 6.319
And I prepare Tails for memory erasure tests 0.383
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.656
Then I find very few patterns in the guest's memory 2.805 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.227
Then patterns cover at least 99% of the test FS size in the guest's memory 2.760 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.549
Then I find very few patterns in the guest's memory after 3 seconds 6.437 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# read cache
When I mount the USB drive again 4.617
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 2.935 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.452 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.755
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.954
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 6.558
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the root filesystem 12.835
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.570
Then patterns cover at least 128 MiB in the guest's memory 2.873 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.773 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.617
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:41.111
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 4:9.501
And I prepare Tails for memory erasure tests 0.279
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.125
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.199 
Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)
After features/support/hooks.rb:339 3.644
After features/support/hooks.rb:108 0.053