Project Number Date
test_Tails_ISO_stable 5917 29 Oct 2025, 14:21

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 12:3.100 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
38.022
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.695
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 2.359
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 10.163 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.977
Then I find very few patterns in the guest's memory after 5 seconds 15.420 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.228
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.775
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.634
And I prepare Tails for memory erasure tests 0.396
And I find very few patterns in the guest's memory 10.398 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.114
Then patterns cover at least 99% of the test FS size in the guest's memory 10.145 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.466
Then I find very few patterns in the guest's memory after 3 seconds 12.617 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 1.229
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:17.311
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.286
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.282
Then I find very few patterns in the guest's memory 9.116 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.735
Then patterns cover at least 75% of the test FS size in the guest's memory 10.810 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.029
Then I find very few patterns in the guest's memory after 3 seconds 13.190 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.775
Then patterns cover at least 99% of the test FS size in the guest's memory 9.992 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 11.938 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 1.241
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.614
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.751
And I prepare Tails for memory erasure tests 0.490
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.477
Then I find very few patterns in the guest's memory 8.759 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.918
Then patterns cover at least 99% of the test FS size in the guest's memory 9.693 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.697
Then I find very few patterns in the guest's memory after 3 seconds 12.397 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 5.100
And I read the content of the test FS 0.514
Then patterns cover at least 99% of the test FS size in the guest's memory 9.095 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory after 3 seconds 12.074 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.049
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.924
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.461
And I prepare Tails for memory erasure tests 0.469
When I fill a 128 MiB file with a known pattern on the root filesystem 10.268
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.670
Then patterns cover at least 128 MiB in the guest's memory 7.893 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.148 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 3.868
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:48.451
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:16.054
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.086
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.859 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.752
After features/support/hooks.rb:100 0.041