Project Number Date
test_Tails_ISO_21742-tor-browser-15.0.21 4 01 Sep 2026, 20:27

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 7:50.160 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
20.121
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 6.500
And I prepare Tails for memory erasure tests 0.368
When I start a process allocating 128 MiB of memory with a known pattern 2.306
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.108 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.263
Then I find very few patterns in the guest's memory after 5 seconds 7.573 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.682
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.146
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 6.572
And I prepare Tails for memory erasure tests 0.343
And I find very few patterns in the guest's memory 2.909 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.816
Then patterns cover at least 99% of the test FS size in the guest's memory 3.116 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.459
Then I find very few patterns in the guest's memory after 3 seconds 5.927 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.559
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.304
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 6.755
And I prepare Tails for memory erasure tests 0.352
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.292
Then I find very few patterns in the guest's memory 2.584 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.863
Then patterns cover at least 75% of the test FS size in the guest's memory 3.114 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.892
Then I find very few patterns in the guest's memory after 3 seconds 5.991 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 0.690
Then patterns cover at least 99% 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 0.442
Then I find very few patterns in the guest's memory after 3 seconds 5.914 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.905
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.433
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 6.455
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.951
Then I find very few patterns in the guest's memory 2.885 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.291
Then patterns cover at least 99% of the test FS size in the guest's memory 2.924 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory after 3 seconds 5.917 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 3.602
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 2.742 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.821 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.860
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.648
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.542
And I prepare Tails for memory erasure tests 0.339
When I fill a 128 MiB file with a known pattern on the root filesystem 12.909
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.643
Then patterns cover at least 128 MiB in the guest's memory 2.455 
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 20.747 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 3.389
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.505
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:8.874
And I prepare Tails for memory erasure tests 0.360
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.067
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.197 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:339 3.719
After features/support/hooks.rb:108 0.008