Project Number Date
test_Tails_ISO_stable 6553 03 Aug 2026, 11:44

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 7:36.630 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
17.815
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 6.495
And I prepare Tails for memory erasure tests 0.290
When I start a process allocating 128 MiB of memory with a known pattern 2.201
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.842 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.212
Then I find very few patterns in the guest's memory after 5 seconds 6.773 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.934
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.137
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 6.432
And I prepare Tails for memory erasure tests 0.322
And I find very few patterns in the guest's memory 1.546 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.703
Then patterns cover at least 99% of the test FS size in the guest's memory 1.931 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.459
Then I find very few patterns in the guest's memory after 3 seconds 4.740 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.607
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.448
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 0.340
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.217
Then I find very few patterns in the guest's memory 1.819 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.710
Then patterns cover at least 75% of the test FS size in the guest's memory 2.016 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.775
Then I find very few patterns in the guest's memory after 3 seconds 4.644 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.395
Then patterns cover at least 99% of the test FS size in the guest's memory 1.840 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.642 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 0.916
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.002
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.661
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.078
Then I find very few patterns in the guest's memory 1.803 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.157
Then patterns cover at least 99% of the test FS size in the guest's memory 1.660 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.561
Then I find very few patterns in the guest's memory after 3 seconds 4.521 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# read cache
When I mount the USB drive again 4.249
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 1.746 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.378
Then I find very few patterns in the guest's memory after 3 seconds 4.555 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 0.762
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.647
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 6.667
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the root filesystem 29.003
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.723
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 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.486 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 3.463
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:30.578
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 3:42.084
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.254
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.954 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 3.686
After features/support/hooks.rb:108 0.035