Project Number Date
test_Tails_ISO_stable 6599 20 Aug 2026, 11:37

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 7:34.535 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
20.058
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.740
And I prepare Tails for memory erasure tests 0.281
When I start a process allocating 128 MiB of memory with a known pattern 2.196
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.914 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.202
Then I find very few patterns in the guest's memory after 5 seconds 7.723 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.771
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.200
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.571
And I prepare Tails for memory erasure tests 0.375
And I find very few patterns in the guest's memory 2.739 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.568
Then patterns cover at least 99% of the test FS size in the guest's memory 2.785 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.354
Then I find very few patterns in the guest's memory after 3 seconds 5.803 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 1.042
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.637
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 6.390
And I prepare Tails for memory erasure tests 0.383
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.326
Then I find very few patterns in the guest's memory 2.818 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.319
Then patterns cover at least 75% of the test FS size in the guest's memory 3.255 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory after 3 seconds 5.793 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.572
Then patterns cover at least 99% of the test FS size in the guest's memory 2.869 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.365
Then I find very few patterns in the guest's memory after 3 seconds 5.687 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.552
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.142
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 6.521
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.325
Then I find very few patterns in the guest's memory 3.047 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.106
Then patterns cover at least 99% of the test FS size in the guest's memory 3.011 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory after 3 seconds 5.780 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
# read cache
When I mount the USB drive again 4.337
And I read the content of the test FS 0.382
Then patterns cover at least 99% of the test FS size in the guest's memory 2.613 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.683 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:339 0.606
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.067
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 6.483
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 12.885
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.572
Then patterns cover at least 128 MiB in the guest's memory 1.987 
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 20.761 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.704
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.429
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 4:0.233
And I prepare Tails for memory erasure tests 0.298
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.631
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.259 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 3.831
After features/support/hooks.rb:108 0.012