Project Number Date
test_Tails_ISO_stable 6695 27 Sep 2026, 12:17

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 7:26.941 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
19.610
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 6.227
And I prepare Tails for memory erasure tests 0.359
When I start a process allocating 128 MiB of memory with a known pattern 2.181
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.895 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 7.737 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 0.545
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.780
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.370
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 2.844 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.365
Then patterns cover at least 99% of the test FS size in the guest's memory 3.450 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 6.020 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.903
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.098
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 6.327
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.281
Then I find very few patterns in the guest's memory 2.799 
Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.629
Then patterns cover at least 75% of the test FS size in the guest's memory 3.189 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.637
Then I find very few patterns in the guest's memory after 3 seconds 5.664 
Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)
# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.623
Then patterns cover at least 99% of the test FS size in the guest's memory 3.043 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.894 
Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)
After features/support/hooks.rb:339 0.656
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.796
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 6.328
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.502
Then I find very few patterns in the guest's memory 3.154 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.189
Then patterns cover at least 99% of the test FS size in the guest's memory 3.482 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 6.066 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# read cache
When I mount the USB drive again 4.645
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 3.265 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.497 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
After features/support/hooks.rb:339 0.959
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.608
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 6.328
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the root filesystem 14.416
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.439
Then patterns cover at least 128 MiB in the guest's memory 2.204 
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 20.783 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
After features/support/hooks.rb:339 3.433
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:17.046
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.718
And I prepare Tails for memory erasure tests 0.284
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.774
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.265 
Pattern coverage: 0.000% (0 MiB out of 1439 MiB reference memory)
After features/support/hooks.rb:339 3.653
After features/support/hooks.rb:108 0.010