Project Number Date
test_Tails_ISO_stable 6193 10 Mar 2026, 14:46

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 7:12.504 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
18.983
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.062
And I prepare Tails for memory erasure tests 0.417
When I start a process allocating 128 MiB of memory with a known pattern 2.214
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.999 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.199
Then I find very few patterns in the guest's memory after 5 seconds 7.090 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.207
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.732
And I prepare Tails for memory erasure tests 0.321
And I find very few patterns in the guest's memory 1.750 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.988
Then patterns cover at least 99% of the test FS size in the guest's memory 2.728 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.814
Then I find very few patterns in the guest's memory after 3 seconds 4.871 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.085
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.875
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.802
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.221
Then I find very few patterns in the guest's memory 1.890 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.055
Then patterns cover at least 75% of the test FS size in the guest's memory 2.116 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.105
Then I find very few patterns in the guest's memory after 3 seconds 4.740 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.146
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 1.924 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.227
Then I find very few patterns in the guest's memory after 3 seconds 4.852 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.882
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.674
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.971
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.650
Then I find very few patterns in the guest's memory 1.723 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.229
Then patterns cover at least 99% of the test FS size in the guest's memory 1.991 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.778
Then I find very few patterns in the guest's memory after 3 seconds 4.886 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 4.061
And I read the content of the test FS 0.267
Then patterns cover at least 99% of the test FS size in the guest's memory 1.767 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 4.573 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.687
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.127
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.641
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the root filesystem 13.062
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.681
Then patterns cover at least 128 MiB in the guest's memory 1.709 
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 20.617 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.453
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:19.634
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:47.970
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.262
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.047 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 3.685
After features/support/hooks.rb:100 0.010