Project Number Date
test_Tails_ISO_stable 6747 13 Oct 2026, 22:07

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 7:33.850 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
20.758
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 6.611
And I prepare Tails for memory erasure tests 0.259
When I start a process allocating 128 MiB of memory with a known pattern 2.214
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.009 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.756
Then I find very few patterns in the guest's memory after 5 seconds 7.907 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 1.001
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.865
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 6.449
And I prepare Tails for memory erasure tests 0.313
And I find very few patterns in the guest's memory 2.802 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.643
Then patterns cover at least 99% of the test FS size in the guest's memory 3.072 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.460
Then I find very few patterns in the guest's memory after 3 seconds 6.123 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
After features/support/hooks.rb:339 0.995
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.420
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 6.501
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.435
Then I find very few patterns in the guest's memory 3.088 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.939
Then patterns cover at least 75% of the test FS size in the guest's memory 3.394 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.718
Then I find very few patterns in the guest's memory after 3 seconds 5.894 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.577
Then patterns cover at least 99% of the test FS size in the guest's memory 2.986 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 5.852 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 1.027
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.321
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.424
And I prepare Tails for memory erasure tests 0.330
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.182
Then I find very few patterns in the guest's memory 2.751 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.302
Then patterns cover at least 99% of the test FS size in the guest's memory 2.716 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 5.572 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
# read cache
When I mount the USB drive again 4.176
And I read the content of the test FS 0.496
Then patterns cover at least 99% of the test FS size in the guest's memory 3.354 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.574
Then I find very few patterns in the guest's memory after 3 seconds 5.942 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 0.960
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.011
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 6.269
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the root filesystem 12.453
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.614
Then patterns cover at least 128 MiB in the guest's memory 2.415 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.865 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 3.759
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:27.472
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 3:56.010
And I prepare Tails for memory erasure tests 0.300
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.690
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.465 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
After features/support/hooks.rb:339 3.822
After features/support/hooks.rb:108 0.010