Project Number Date
test_Tails_ISO_stable 6436 09 Jun 2026, 11:34

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 7:10.395 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
17.168
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 6.453
And I prepare Tails for memory erasure tests 0.297
When I start a process allocating 128 MiB of memory with a known pattern 1.139
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.139 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.211
Then I find very few patterns in the guest's memory after 5 seconds 6.927 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 0.581
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.055
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 6.465
And I prepare Tails for memory erasure tests 0.345
And I find very few patterns in the guest's memory 1.690 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.484
Then patterns cover at least 99% of the test FS size in the guest's memory 1.918 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.291
Then I find very few patterns in the guest's memory after 3 seconds 4.858 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:335 0.736
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.205
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 6.454
And I prepare Tails for memory erasure tests 0.317
When I plug and mount a 128 MiB USB drive with a vfat filesystem 4.976
Then I find very few patterns in the guest's memory 1.853 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.404
Then patterns cover at least 75% of the test FS size in the guest's memory 2.032 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.764
Then I find very few patterns in the guest's memory after 3 seconds 4.673 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.574
Then patterns cover at least 99% of the test FS size in the guest's memory 1.871 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.309
Then I find very few patterns in the guest's memory after 3 seconds 4.778 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:335 1.023
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.611
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 6.707
And I prepare Tails for memory erasure tests 0.312
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.774
Then I find very few patterns in the guest's memory 1.687 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.406
Then patterns cover at least 99% of the test FS size in the guest's memory 1.677 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory after 3 seconds 4.765 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 3.585
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.805 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 4.617 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:335 0.669
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
48.929
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 6.380
And I prepare Tails for memory erasure tests 0.341
When I fill a 128 MiB file with a known pattern on the root filesystem 18.106
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.081
Then patterns cover at least 128 MiB in the guest's memory 1.451 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.561 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:335 3.631
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:21.424
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 3:40.521
And I prepare Tails for memory erasure tests 0.303
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.673
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.920 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:335 3.831
After features/support/hooks.rb:104 0.008