Project Number Date
test_Tails_ISO_stable 6512 20 Jul 2026, 17:16

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 7:55.696 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
18.018
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 6.449
And I prepare Tails for memory erasure tests 0.294
When I start a process allocating 128 MiB of memory with a known pattern 2.243
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.951 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.180
Then I find very few patterns in the guest's memory after 5 seconds 6.898 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.762
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.360
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 6.504
And I prepare Tails for memory erasure tests 0.355
And I find very few patterns in the guest's memory 1.762 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.751
Then patterns cover at least 99% of the test FS size in the guest's memory 1.896 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.448
Then I find very few patterns in the guest's memory after 3 seconds 4.640 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 0.879
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.663
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 6.469
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.118
Then I find very few patterns in the guest's memory 1.720 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.745
Then patterns cover at least 75% of the test FS size in the guest's memory 1.904 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.880
Then I find very few patterns in the guest's memory after 3 seconds 4.691 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.963 
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 4.887 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 0.609
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.374
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 6.603
And I prepare Tails for memory erasure tests 0.349
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.295
Then I find very few patterns in the guest's memory 1.717 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.356
Then patterns cover at least 99% of the test FS size in the guest's memory 1.777 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.512 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.193
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.732 
Pattern coverage: 106.115% (97 MiB out of 91 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 4.614 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.990
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.586
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 6.603
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the root filesystem 34.772
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.730
Then patterns cover at least 128 MiB in the guest's memory 1.652 
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 20.514 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 3.513
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:44.694
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 3:57.430
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.063
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.899 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:339 3.568
After features/support/hooks.rb:108 0.014