Project Number Date
test_Tails_ISO_21651-persist-gnome-software-dconf-state 6 25 Jul 2026, 03:48

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 7:51.971 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
18.071
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 6.674
And I prepare Tails for memory erasure tests 0.411
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.925 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 6.658 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.696
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.828
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 6.563
And I prepare Tails for memory erasure tests 0.375
And I find very few patterns in the guest's memory 1.737 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.781
Then patterns cover at least 99% of the test FS size in the guest's memory 2.219 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.428
Then I find very few patterns in the guest's memory after 3 seconds 4.721 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 0.936
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.597
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 6.509
And I prepare Tails for memory erasure tests 0.463
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.518
Then I find very few patterns in the guest's memory 1.955 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.813
Then patterns cover at least 75% of the test FS size in the guest's memory 1.897 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.777
Then I find very few patterns in the guest's memory after 3 seconds 4.761 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.386
Then patterns cover at least 99% of the test FS size in the guest's memory 2.069 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.491
Then I find very few patterns in the guest's memory after 3 seconds 4.772 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.704
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.281
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 6.526
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.204
Then I find very few patterns in the guest's memory 1.805 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.220
Then patterns cover at least 99% of the test FS size in the guest's memory 1.932 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 4.591 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# read cache
When I mount the USB drive again 4.499
And I read the content of the test FS 0.294
Then patterns cover at least 99% of the test FS size in the guest's memory 2.181 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 4.726 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 1.078
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.010
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 6.758
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the root filesystem 30.277
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.645
Then patterns cover at least 128 MiB in the guest's memory 1.452 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.496 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 3.577
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:42.181
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 3:55.692
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 25.327
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.857 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:339 3.606
After features/support/hooks.rb:108 0.010