Project Number Date
test_Tails_ISO_stable 6048 08 Jan 2026, 20:47

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 12:31.995 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
53.018
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 7.884
And I prepare Tails for memory erasure tests 0.454
When I start a process allocating 128 MiB of memory with a known pattern 1.140
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.163 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.237
Then I find very few patterns in the guest's memory after 5 seconds 28.138 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.225
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 7.359
And I prepare Tails for memory erasure tests 0.400
And I find very few patterns in the guest's memory 13.507 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.570
Then patterns cover at least 99% of the test FS size in the guest's memory 15.865 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.081
Then I find very few patterns in the guest's memory after 3 seconds 18.441 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.625
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:45.959
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 7.413
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.519
Then I find very few patterns in the guest's memory 14.857 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.021
Then patterns cover at least 75% of the test FS size in the guest's memory 20.922 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.259
Then I find very few patterns in the guest's memory after 3 seconds 17.050 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 15.039 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.156
Then I find very few patterns in the guest's memory after 3 seconds 20.697 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 1.027
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:58.908
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 7.516
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.224
Then I find very few patterns in the guest's memory 12.876 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.269
Then patterns cover at least 99% of the test FS size in the guest's memory 17.113 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 2.982
Then I find very few patterns in the guest's memory after 3 seconds 18.637 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 2.533
And I read the content of the test FS 0.422
Then patterns cover at least 99% of the test FS size in the guest's memory 13.476 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.349
Then I find very few patterns in the guest's memory after 3 seconds 17.142 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.028
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.970
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 7.452
And I prepare Tails for memory erasure tests 0.429
When I fill a 128 MiB file with a known pattern on the root filesystem 9.213
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.279
Then patterns cover at least 128 MiB in the guest's memory 17.783 
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 22.799 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.719
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:59.912
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:28.010
And I prepare Tails for memory erasure tests 0.348
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.457
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.085 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.730
After features/support/hooks.rb:100 0.015