Project Number Date
test_Tails_ISO_21706-dont-use-efficient-cores 5 11 Aug 2026, 21:11

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 7:19.387 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
19.239
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 6.224
And I prepare Tails for memory erasure tests 0.313
When I start a process allocating 128 MiB of memory with a known pattern 2.199
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.787 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 7.540 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 1.024
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.387
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 6.243
And I prepare Tails for memory erasure tests 0.288
And I find very few patterns in the guest's memory 2.581 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.346
Then patterns cover at least 99% of the test FS size in the guest's memory 2.876 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.356
Then I find very few patterns in the guest's memory after 3 seconds 5.695 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.863
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.321
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 6.233
And I prepare Tails for memory erasure tests 0.261
When I plug and mount a 128 MiB USB drive with a vfat filesystem 4.974
Then I find very few patterns in the guest's memory 2.863 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.711
Then patterns cover at least 75% of the test FS size in the guest's memory 2.945 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.620
Then I find very few patterns in the guest's memory after 3 seconds 5.843 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# read cache
When I mount the USB drive again 0.174
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 3.010 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.812 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 0.920
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.627
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 6.363
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.161
Then I find very few patterns in the guest's memory 2.561 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.035
Then patterns cover at least 99% of the test FS size in the guest's memory 2.526 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 5.533 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 3.850
And I read the content of the test FS 0.355
Then patterns cover at least 99% of the test FS size in the guest's memory 2.636 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.366 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.634
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.888
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 6.279
And I prepare Tails for memory erasure tests 0.260
When I fill a 128 MiB file with a known pattern on the root filesystem 12.847
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.700
Then patterns cover at least 128 MiB in the guest's memory 2.085 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.709 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 3.636
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:20.921
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 3:48.741
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.739
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.037 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 3.681
After features/support/hooks.rb:108 0.039