Project Number Date
test_Tails_ISO_21319-thunderbird-153 6 27 Oct 2026, 17:13

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 7:32.635 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
19.720
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 6.317
And I prepare Tails for memory erasure tests 0.350
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.891 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.252
Then I find very few patterns in the guest's memory after 5 seconds 7.670 
Pattern coverage: 0.000% (0 MiB out of 1381 MiB reference memory)
After features/support/hooks.rb:339 1.045
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.394
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 6.263
And I prepare Tails for memory erasure tests 0.312
And I find very few patterns in the guest's memory 3.256 
Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.559
Then patterns cover at least 99% of the test FS size in the guest's memory 2.954 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.430
Then I find very few patterns in the guest's memory after 3 seconds 5.617 
Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)
After features/support/hooks.rb:339 0.875
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.528
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 6.341
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.595
Then I find very few patterns in the guest's memory 2.802 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.854
Then patterns cover at least 75% of the test FS size in the guest's memory 2.826 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.739
Then I find very few patterns in the guest's memory after 3 seconds 5.928 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 3.077 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.483
Then I find very few patterns in the guest's memory after 3 seconds 5.685 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
After features/support/hooks.rb:339 0.702
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:7.731
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 6.267
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.200
Then I find very few patterns in the guest's memory 2.595 
Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.327
Then patterns cover at least 99% of the test FS size in the guest's memory 2.664 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.541
Then I find very few patterns in the guest's memory after 3 seconds 7.290 
Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)
# read cache
When I mount the USB drive again 4.342
And I read the content of the test FS 0.412
Then patterns cover at least 99% of the test FS size in the guest's memory 4.723 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 7.554 
Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)
After features/support/hooks.rb:339 1.031
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.575
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 6.385
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the root filesystem 13.456
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.726
Then patterns cover at least 128 MiB in the guest's memory 2.515 
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 21.032 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
After features/support/hooks.rb:339 3.558
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:21.685
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 3:50.422
And I prepare Tails for memory erasure tests 0.516
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.715
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.026 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:339 3.530
After features/support/hooks.rb:108 0.024