Project Number Date
test_Tails_ISO_devel 4676 15 Oct 2026, 11:05

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 7:8.647 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
19.268
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 6.154
And I prepare Tails for memory erasure tests 0.280
When I start a process allocating 128 MiB of memory with a known pattern 2.202
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.836 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.166
Then I find very few patterns in the guest's memory after 5 seconds 7.627 
Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)
After features/support/hooks.rb:339 0.907
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.591
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 6.180
And I prepare Tails for memory erasure tests 0.274
And I find very few patterns in the guest's memory 2.585 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.295
Then patterns cover at least 99% of the test FS size in the guest's memory 3.074 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.408
Then I find very few patterns in the guest's memory after 3 seconds 5.772 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.664
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.304
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 6.108
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.135
Then I find very few patterns in the guest's memory 3.328 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.492
Then patterns cover at least 75% of the test FS size in the guest's memory 3.002 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.641
Then I find very few patterns in the guest's memory after 3 seconds 5.622 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.538
Then patterns cover at least 99% of the test FS size in the guest's memory 2.822 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.735 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 0.946
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.341
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 6.324
And I prepare Tails for memory erasure tests 0.320
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.771
Then I find very few patterns in the guest's memory 2.804 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.028
Then patterns cover at least 99% of the test FS size in the guest's memory 2.659 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 5.613 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# read cache
When I mount the USB drive again 3.577
And I read the content of the test FS 0.356
Then patterns cover at least 99% of the test FS size in the guest's memory 2.598 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.353
Then I find very few patterns in the guest's memory after 3 seconds 5.480 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.907
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.854
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 6.106
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the root filesystem 13.319
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.326
Then patterns cover at least 128 MiB in the guest's memory 2.076 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.725 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
After features/support/hooks.rb:339 3.673
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:10.287
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:39.214
And I prepare Tails for memory erasure tests 0.299
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.545
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.223 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
After features/support/hooks.rb:339 3.475
After features/support/hooks.rb:108 0.012