Project Number Date
test_Tails_ISO_devel 4442 11 Jun 2026, 11:15

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 8:1.012 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
17.614
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.651
And I prepare Tails for memory erasure tests 0.348
When I start a process allocating 128 MiB of memory with a known pattern 1.274
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.243 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.216
Then I find very few patterns in the guest's memory after 5 seconds 6.879 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:335 0.743
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.470
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.771
And I prepare Tails for memory erasure tests 0.485
And I find very few patterns in the guest's memory 1.992 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.634
Then patterns cover at least 99% of the test FS size in the guest's memory 2.307 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.361
Then I find very few patterns in the guest's memory after 3 seconds 4.917 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:335 0.838
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.704
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.009
Given I have started Tails from DVD without network and logged in 7.052
And I prepare Tails for memory erasure tests 0.465
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.354
Then I find very few patterns in the guest's memory 1.976 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.702
Then patterns cover at least 75% of the test FS size in the guest's memory 2.202 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.864
Then I find very few patterns in the guest's memory after 3 seconds 4.925 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 0.182
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 2.086 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 5.089 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 1.199
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.020
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 7.082
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.689
Then I find very few patterns in the guest's memory 2.008 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.629
Then patterns cover at least 99% of the test FS size in the guest's memory 1.983 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.650
Then I find very few patterns in the guest's memory after 3 seconds 4.841 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 3.623
And I read the content of the test FS 0.355
Then patterns cover at least 99% of the test FS size in the guest's memory 1.982 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 5.130 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:335 0.858
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.460
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.756
And I prepare Tails for memory erasure tests 0.493
When I fill a 128 MiB file with a known pattern on the root filesystem 26.318
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.446
Then patterns cover at least 128 MiB in the guest's memory 1.757 
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 20.681 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 3.644
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:53.742
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:15.244
And I prepare Tails for memory erasure tests 0.546
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.003
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.935 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:335 3.475
After features/support/hooks.rb:104 0.011