Project Number Date
test_Tails_ISO_stable 6493 09 Jul 2026, 07:38

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 7:53.080 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
17.572
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 6.675
And I prepare Tails for memory erasure tests 0.367
When I start a process allocating 128 MiB of memory with a known pattern 1.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.919 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.178
Then I find very few patterns in the guest's memory after 5 seconds 7.248 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:339 0.719
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.745
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 6.697
And I prepare Tails for memory erasure tests 0.506
And I find very few patterns in the guest's memory 1.729 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.529
Then patterns cover at least 99% of the test FS size in the guest's memory 2.022 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.296
Then I find very few patterns in the guest's memory after 3 seconds 4.962 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 1.015
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.800
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 6.836
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.305
Then I find very few patterns in the guest's memory 1.995 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.453
Then patterns cover at least 75% of the test FS size in the guest's memory 2.242 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.724
Then I find very few patterns in the guest's memory after 3 seconds 4.808 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.536
Then patterns cover at least 99% of the test FS size in the guest's memory 2.034 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.373
Then I find very few patterns in the guest's memory after 3 seconds 4.874 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 1.006
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.162
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 6.664
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.139
Then I find very few patterns in the guest's memory 1.718 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.180
Then patterns cover at least 99% of the test FS size in the guest's memory 1.780 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 4.694 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 3.764
And I read the content of the test FS 0.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.984 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory after 3 seconds 4.635 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 0.790
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.564
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 6.612
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the root filesystem 31.279
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.103
Then patterns cover at least 128 MiB in the guest's memory 1.612 
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 20.553 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 3.482
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:47.236
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 3:59.388
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.282
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.184 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 3.546
After features/support/hooks.rb:108 0.011