Project Number Date
test_Tails_ISO_devel 4542 11 Aug 2026, 12:08

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 7:14.612 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
19.620
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 6.266
And I prepare Tails for memory erasure tests 0.273
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.843 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.294
Then I find very few patterns in the guest's memory after 5 seconds 7.730 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.588
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.009
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 6.340
And I prepare Tails for memory erasure tests 0.339
And I find very few patterns in the guest's memory 2.622 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.654
Then patterns cover at least 99% of the test FS size in the guest's memory 2.799 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.484
Then I find very few patterns in the guest's memory after 3 seconds 5.768 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
After features/support/hooks.rb:339 0.742
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.759
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 6.460
And I prepare Tails for memory erasure tests 0.321
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.311
Then I find very few patterns in the guest's memory 2.698 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.655
Then patterns cover at least 75% of the test FS size in the guest's memory 3.010 
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 5.718 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.584
Then patterns cover at least 99% of the test FS size in the guest's memory 2.826 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 5.856 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.997
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.747
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 6.380
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.251
Then I find very few patterns in the guest's memory 2.649 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.170
Then patterns cover at least 99% of the test FS size in the guest's memory 2.693 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.455 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# read cache
When I mount the USB drive again 3.924
And I read the content of the test FS 0.344
Then patterns cover at least 99% of the test FS size in the guest's memory 2.870 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 5.732 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 0.980
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.084
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 6.309
And I prepare Tails for memory erasure tests 0.310
When I fill a 128 MiB file with a known pattern on the root filesystem 12.002
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.529
Then patterns cover at least 128 MiB in the guest's memory 2.138 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.784 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 3.446
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:13.390
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 3:41.633
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.312
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.142 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.769
After features/support/hooks.rb:108 0.014