Project Number Date
test_Tails_ISO_stable 6245 29 Mar 2026, 10:56

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 7:2.338 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
17.406
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 6.676
And I prepare Tails for memory erasure tests 0.424
When I start a process allocating 128 MiB of memory with a known pattern 1.166
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.119 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 6.815 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.185
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 6.629
And I prepare Tails for memory erasure tests 0.409
And I find very few patterns in the guest's memory 1.738 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.397
Then patterns cover at least 99% of the test FS size in the guest's memory 1.970 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.281
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 0.994
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.703
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 6.471
And I prepare Tails for memory erasure tests 0.426
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.199
Then I find very few patterns in the guest's memory 1.747 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.045
Then patterns cover at least 75% of the test FS size in the guest's memory 1.924 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.603
Then I find very few patterns in the guest's memory after 3 seconds 4.756 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# read cache
When I mount the USB drive again 0.153
And I read the content of the test FS 0.392
Then patterns cover at least 99% of the test FS size in the guest's memory 1.967 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.312
Then I find very few patterns in the guest's memory after 3 seconds 4.701 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.868
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 6.402
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.600
Then I find very few patterns in the guest's memory 1.743 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.134
Then patterns cover at least 99% of the test FS size in the guest's memory 1.705 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 4.542 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 3.813
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.726 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 4.646 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 0.942
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.063
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 6.464
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the root filesystem 11.709
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.613
Then patterns cover at least 128 MiB in the guest's memory 1.417 
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 20.480 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 3.509
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.110
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 3:45.693
And I prepare Tails for memory erasure tests 0.316
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.272
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.821 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 3.589
After features/support/hooks.rb:100 0.008