Project Number Date
test_Tails_ISO_devel 4668 09 Oct 2026, 11:24

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 7:53.847 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
20.632
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 6.384
And I prepare Tails for memory erasure tests 0.356
When I start a process allocating 128 MiB of memory with a known pattern 2.250
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.990 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.830
Then I find very few patterns in the guest's memory after 5 seconds 7.819 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
After features/support/hooks.rb:339 0.665
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
22.505
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 6.743
And I prepare Tails for memory erasure tests 0.343
And I find very few patterns in the guest's memory 2.821 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.665
Then patterns cover at least 99% of the test FS size in the guest's memory 4.351 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 6.207 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 0.780
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
39.992
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 6.390
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.598
Then I find very few patterns in the guest's memory 2.854 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.854
Then patterns cover at least 75% of the test FS size in the guest's memory 3.058 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.624
Then I find very few patterns in the guest's memory after 3 seconds 5.730 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.597
Then patterns cover at least 99% of the test FS size in the guest's memory 4.387 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 5.876 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.798
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:7.110
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 6.339
And I prepare Tails for memory erasure tests 0.306
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.129
Then I find very few patterns in the guest's memory 2.702 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.422
Then patterns cover at least 99% of the test FS size in the guest's memory 2.664 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.554
Then I find very few patterns in the guest's memory after 3 seconds 5.763 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
# read cache
When I mount the USB drive again 4.960
And I read the content of the test FS 0.387
Then patterns cover at least 99% of the test FS size in the guest's memory 2.884 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 5.583 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 0.651
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.196
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 6.386
And I prepare Tails for memory erasure tests 0.407
When I fill a 128 MiB file with a known pattern on the root filesystem 12.231
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.505
Then patterns cover at least 128 MiB in the guest's memory 3.607 
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 21.047 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 3.901
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:38.410
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 4:6.495
And I prepare Tails for memory erasure tests 0.268
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.990
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.650 
Pattern coverage: 0.000% (0 MiB out of 1444 MiB reference memory)
After features/support/hooks.rb:339 3.835
After features/support/hooks.rb:108 0.012