Project Number Date
test_Tails_ISO_stable 6339 30 Apr 2026, 15:51

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 7:23.724 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
18.074
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 6.831
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 1.186
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.047 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.578
Then I find very few patterns in the guest's memory after 5 seconds 7.079 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:331 1.059
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.316
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 7.008
And I prepare Tails for memory erasure tests 0.394
And I find very few patterns in the guest's memory 1.810 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.486
Then patterns cover at least 99% of the test FS size in the guest's memory 2.254 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.345
Then I find very few patterns in the guest's memory after 3 seconds 5.016 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
After features/support/hooks.rb:331 0.912
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.278
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 6.759
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.332
Then I find very few patterns in the guest's memory 1.947 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.380
Then patterns cover at least 75% of the test FS size in the guest's memory 2.257 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.859
Then I find very few patterns in the guest's memory after 3 seconds 5.091 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.528
Then patterns cover at least 99% of the test FS size in the guest's memory 2.071 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 5.108 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
After features/support/hooks.rb:331 0.981
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.775
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 7.073
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.730
Then I find very few patterns in the guest's memory 2.226 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.137
Then patterns cover at least 99% of the test FS size in the guest's memory 2.119 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.555
Then I find very few patterns in the guest's memory after 3 seconds 4.959 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
# read cache
When I mount the USB drive again 3.500
And I read the content of the test FS 0.311
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.471
Then I find very few patterns in the guest's memory after 3 seconds 5.213 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
After features/support/hooks.rb:331 1.036
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.212
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 6.660
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the root filesystem 12.759
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.919
Then patterns cover at least 128 MiB in the guest's memory 1.826 
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 20.602 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:331 3.825
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.066
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 3:53.473
And I prepare Tails for memory erasure tests 0.367
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.181
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.035 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 3.745
After features/support/hooks.rb:100 0.015