Project Number Date
test_Tails_ISO_stable 6331 29 Apr 2026, 07:35

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 7:32.447 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
20.892
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 6.613
And I prepare Tails for memory erasure tests 0.499
When I start a process allocating 128 MiB of memory with a known pattern 4.311
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.004 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.699
Then I find very few patterns in the guest's memory after 5 seconds 6.764 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.988
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.710
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 6.818
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 1.769 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.533
Then patterns cover at least 99% of the test FS size in the guest's memory 1.987 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.312
Then I find very few patterns in the guest's memory after 3 seconds 4.772 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.260
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
38.807
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 6.604
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.426
Then I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.098
Then patterns cover at least 75% of the test FS size in the guest's memory 2.029 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 7.327
Then I find very few patterns in the guest's memory after 3 seconds 4.900 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.619
And I read the content of the test FS 0.380
Then patterns cover at least 99% of the test FS size in the guest's memory 1.958 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 4.770 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.166
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.304
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.753
And I prepare Tails for memory erasure tests 0.319
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.358
Then I find very few patterns in the guest's memory 1.626 
Pattern coverage: 0.000% (0 MiB out of 1483 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 1.826 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.606
Then I find very few patterns in the guest's memory after 3 seconds 4.579 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.654
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.767 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.537
Then I find very few patterns in the guest's memory after 3 seconds 4.709 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.035
After features/support/hooks.rb:100 0.004
Tags: @product @slow @not_release_blocker
44.204
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.883
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the root filesystem 12.633
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.214
Then patterns cover at least 128 MiB in the guest's memory 1.495 
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 20.549 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.434
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:23.527
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 3:51.616
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.745
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.852 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 3.719
After features/support/hooks.rb:100 0.009