Project Number Date
test_Tails_ISO_stable 6515 21 Jul 2026, 11:48

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 7:37.533 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
18.523
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.388
And I prepare Tails for memory erasure tests 0.346
When I start a process allocating 128 MiB of memory with a known pattern 2.145
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.994 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.891
Then I find very few patterns in the guest's memory after 5 seconds 6.756 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 0.720
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.227
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.458
And I prepare Tails for memory erasure tests 0.346
And I find very few patterns in the guest's memory 1.704 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.548
Then patterns cover at least 99% of the test FS size in the guest's memory 2.119 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.402
Then I find very few patterns in the guest's memory after 3 seconds 4.647 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 1.065
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.085
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.528
And I prepare Tails for memory erasure tests 0.309
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.110
Then I find very few patterns in the guest's memory 1.906 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.449
Then patterns cover at least 75% of the test FS size in the guest's memory 1.940 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.863
Then I find very few patterns in the guest's memory after 3 seconds 4.618 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.145
And I read the content of the test FS 0.411
Then patterns cover at least 99% of the test FS size in the guest's memory 1.798 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.606 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.677
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.403
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.715
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.119
Then I find very few patterns in the guest's memory 1.738 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.202
Then patterns cover at least 99% of the test FS size in the guest's memory 1.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.555
Then I find very few patterns in the guest's memory after 3 seconds 4.562 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.298
And I read the content of the test FS 0.266
Then patterns cover at least 99% of the test FS size in the guest's memory 1.842 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.343
Then I find very few patterns in the guest's memory after 3 seconds 4.636 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.912
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.209
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.531
And I prepare Tails for memory erasure tests 0.348
When I fill a 128 MiB file with a known pattern on the root filesystem 32.904
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.461
Then patterns cover at least 128 MiB in the guest's memory 1.390 
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 20.565 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 3.370
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.084
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:43.987
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.650
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.021 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:339 3.686
After features/support/hooks.rb:108 0.014