Project Number Date
test_Tails_ISO_stable 6406 27 May 2026, 11:43

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 7:45.975 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
17.710
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.059
And I prepare Tails for memory erasure tests 0.365
When I start a process allocating 128 MiB of memory with a known pattern 1.164
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.068 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.234
Then I find very few patterns in the guest's memory after 5 seconds 6.818 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:335 1.075
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.936
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.713
And I prepare Tails for memory erasure tests 0.389
And I find very few patterns in the guest's memory 1.879 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.678
Then patterns cover at least 99% of the test FS size in the guest's memory 2.132 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.308
Then I find very few patterns in the guest's memory after 3 seconds 4.834 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
After features/support/hooks.rb:335 0.890
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.700
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 6.946
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.691
Then I find very few patterns in the guest's memory 1.888 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.722
Then patterns cover at least 75% of the test FS size in the guest's memory 2.170 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.758
Then I find very few patterns in the guest's memory after 3 seconds 4.864 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# read cache
When I mount the USB drive again 0.254
And I read the content of the test FS 0.519
Then patterns cover at least 99% of the test FS size in the guest's memory 2.173 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 4.911 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:335 1.100
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:0.076
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 6.623
And I prepare Tails for memory erasure tests 0.437
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.524
Then I find very few patterns in the guest's memory 1.972 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.380
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.596
Then I find very few patterns in the guest's memory after 3 seconds 4.799 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# read cache
When I mount the USB drive again 4.434
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 1.990 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 4.656 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
After features/support/hooks.rb:335 0.695
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.872
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 6.576
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the root filesystem 26.324
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.266
Then patterns cover at least 128 MiB in the guest's memory 1.718 
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 20.575 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
After features/support/hooks.rb:335 3.712
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:38.679
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:57.215
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.131
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.999 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:335 3.589
After features/support/hooks.rb:104 0.014