Project Number Date
test_Tails_ISO_stable 6394 21 May 2026, 07:31

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 7:0.140 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
16.748
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 6.454
And I prepare Tails for memory erasure tests 0.373
When I start a process allocating 128 MiB of memory with a known pattern 1.151
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.920 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.166
Then I find very few patterns in the guest's memory after 5 seconds 6.682 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 0.962
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
16.994
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 6.398
And I prepare Tails for memory erasure tests 0.355
And I find very few patterns in the guest's memory 1.738 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.526
Then patterns cover at least 99% of the test FS size in the guest's memory 1.894 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.331
Then I find very few patterns in the guest's memory after 3 seconds 4.750 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 0.753
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.166
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 6.394
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.276
Then I find very few patterns in the guest's memory 1.748 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.546
Then patterns cover at least 75% of the test FS size in the guest's memory 1.981 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.607
Then I find very few patterns in the guest's memory after 3 seconds 4.706 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.383
Then patterns cover at least 99% of the test FS size in the guest's memory 1.906 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.325
Then I find very few patterns in the guest's memory after 3 seconds 4.798 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 0.585
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
53.197
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 6.441
And I prepare Tails for memory erasure tests 0.330
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.154
Then I find very few patterns in the guest's memory 1.584 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.315
Then patterns cover at least 99% of the test FS size in the guest's memory 1.957 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.590 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 3.519
And I read the content of the test FS 0.269
Then patterns cover at least 99% of the test FS size in the guest's memory 1.644 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.558 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 1.063
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.312
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 6.449
And I prepare Tails for memory erasure tests 0.300
When I fill a 128 MiB file with a known pattern on the root filesystem 24.019
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.616
Then patterns cover at least 128 MiB in the guest's memory 1.448 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.471 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 3.776
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:7.720
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 3:28.803
And I prepare Tails for memory erasure tests 0.280
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.685
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.944 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:335 3.539
After features/support/hooks.rb:104 0.008