Project Number Date
test_Tails_ISO_stable 6485 01 Jul 2026, 11:38

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 7:39.960 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
16.953
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 6.568
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 1.142
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.984 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.175
Then I find very few patterns in the guest's memory after 5 seconds 6.763 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.820
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.676
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 6.430
And I prepare Tails for memory erasure tests 0.315
And I find very few patterns in the guest's memory 1.661 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.429
Then patterns cover at least 99% of the test FS size in the guest's memory 1.890 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.297
Then I find very few patterns in the guest's memory after 3 seconds 4.650 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.721
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.108
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 6.520
And I prepare Tails for memory erasure tests 0.346
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.058
Then I find very few patterns in the guest's memory 1.691 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.479
Then patterns cover at least 75% of the test FS size in the guest's memory 2.040 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 4.720 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
And I read the content of the test FS 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 1.933 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.272
Then I find very few patterns in the guest's memory after 3 seconds 4.652 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 0.620
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.006
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 6.401
And I prepare Tails for memory erasure tests 0.325
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.785
Then I find very few patterns in the guest's memory 1.579 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.070
Then patterns cover at least 99% of the test FS size in the guest's memory 1.737 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.616 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 4.001
And I read the content of the test FS 0.252
Then patterns cover at least 99% of the test FS size in the guest's memory 1.761 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 4.595 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.732
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.071
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 6.402
And I prepare Tails for memory erasure tests 0.315
When I fill a 128 MiB file with a known pattern on the root filesystem 31.395
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.070
Then patterns cover at least 128 MiB in the guest's memory 1.399 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.481 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 3.480
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:37.145
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 3:48.691
And I prepare Tails for memory erasure tests 0.303
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.310
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.834 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 3.573
After features/support/hooks.rb:108 0.009