Project Number Date
test_Tails_ISO_devel 4410 22 May 2026, 11:20

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 7:31.794 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
17.487
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.007
Given I have started Tails from DVD without network and logged in 6.515
And I prepare Tails for memory erasure tests 0.348
When I start a process allocating 128 MiB of memory with a known pattern 1.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.912 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.687
Then I find very few patterns in the guest's memory after 5 seconds 6.786 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 0.772
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.218
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.457
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 1.716 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.602
Then patterns cover at least 99% of the test FS size in the guest's memory 1.985 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.301
Then I find very few patterns in the guest's memory after 3 seconds 4.803 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 1.082
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.980
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.515
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.264
Then I find very few patterns in the guest's memory 1.823 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.786
Then patterns cover at least 75% of the test FS size in the guest's memory 2.059 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.743
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.149
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 1.915 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.391
Then I find very few patterns in the guest's memory after 3 seconds 4.749 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:335 0.810
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.879
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.811
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.203
Then I find very few patterns in the guest's memory 1.651 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.492
Then patterns cover at least 99% of the test FS size in the guest's memory 1.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.552
Then I find very few patterns in the guest's memory after 3 seconds 4.672 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.968
And I read the content of the test FS 0.284
Then patterns cover at least 99% of the test FS size in the guest's memory 1.886 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 4.684 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 0.951
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.009
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.738
And I prepare Tails for memory erasure tests 0.429
When I fill a 128 MiB file with a known pattern on the root filesystem 25.009
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.839
Then patterns cover at least 128 MiB in the guest's memory 1.484 
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 20.500 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 3.575
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:33.219
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.275
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.597
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.987 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:335 3.499
After features/support/hooks.rb:104 0.009