Project Number Date
test_Tails_ISO_devel 4566 23 Aug 2026, 11:15

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 7:44.937 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
22.258
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 6.275
And I prepare Tails for memory erasure tests 0.315
When I start a process allocating 128 MiB of memory with a known pattern 2.211
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.929 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.209
Then I find very few patterns in the guest's memory after 5 seconds 9.317 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.950
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
23.143
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 6.329
And I prepare Tails for memory erasure tests 0.317
And I find very few patterns in the guest's memory 3.593 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.500
Then patterns cover at least 99% of the test FS size in the guest's memory 4.185 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.320
Then I find very few patterns in the guest's memory after 3 seconds 6.896 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 0.600
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.936
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 6.398
And I prepare Tails for memory erasure tests 1.370
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.273
Then I find very few patterns in the guest's memory 3.540 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.389
Then patterns cover at least 75% of the test FS size in the guest's memory 3.963 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.617
Then I find very few patterns in the guest's memory after 3 seconds 7.828 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.926
Then patterns cover at least 99% of the test FS size in the guest's memory 3.494 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 8.430 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.876
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:8.633
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 6.673
And I prepare Tails for memory erasure tests 0.288
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.361
Then I find very few patterns in the guest's memory 3.339 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.246
Then patterns cover at least 99% of the test FS size in the guest's memory 3.468 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 6.250 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 3.843
And I read the content of the test FS 0.333
Then patterns cover at least 99% of the test FS size in the guest's memory 3.464 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.396
Then I find very few patterns in the guest's memory after 3 seconds 6.499 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.546
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
42.954
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 6.239
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 11.654
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.483
Then patterns cover at least 128 MiB in the guest's memory 2.478 
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 20.755 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 3.580
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:23.010
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 3:51.417
And I prepare Tails for memory erasure tests 0.236
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.291
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.060 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:339 3.793
After features/support/hooks.rb:108 0.009