Project Number Date
test_Tails_ISO_stable 6225 23 Mar 2026, 20:11

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 7:36.341 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
19.400
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.583
And I prepare Tails for memory erasure tests 0.503
When I start a process allocating 128 MiB of memory with a known pattern 1.203
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.249 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.938
Then I find very few patterns in the guest's memory after 5 seconds 6.922 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 0.885
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.245
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 7.574
And I prepare Tails for memory erasure tests 0.435
And I find very few patterns in the guest's memory 1.930 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.370
Then patterns cover at least 99% of the test FS size in the guest's memory 2.016 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.661
Then I find very few patterns in the guest's memory after 3 seconds 5.258 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.116
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.327
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 7.433
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.519
Then I find very few patterns in the guest's memory 2.031 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.388
Then patterns cover at least 75% of the test FS size in the guest's memory 2.852 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.987
Then I find very few patterns in the guest's memory after 3 seconds 5.117 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 2.460 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 4.926 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 0.945
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.975
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.243
And I prepare Tails for memory erasure tests 0.457
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.864
Then I find very few patterns in the guest's memory 1.780 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.702
Then patterns cover at least 99% of the test FS size in the guest's memory 2.159 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 4.687 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# read cache
When I mount the USB drive again 4.336
And I read the content of the test FS 0.298
Then patterns cover at least 99% of the test FS size in the guest's memory 2.145 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.612
Then I find very few patterns in the guest's memory after 3 seconds 4.998 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.875
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.520
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 7.939
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the root filesystem 13.775
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.210
Then patterns cover at least 128 MiB in the guest's memory 1.673 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.535 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 3.665
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:27.871
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 3:54.660
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.666
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.157 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 3.398
After features/support/hooks.rb:100 0.009