Project Number Date
test_Tails_ISO_21523-21524-unsafe-browser-onionshare-no-dbus-access 1 20 Apr 2026, 20:50

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 8:3.285 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
19.887
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 7.148
And I prepare Tails for memory erasure tests 0.459
When I start a process allocating 128 MiB of memory with a known pattern 2.292
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.014 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.574
Then I find very few patterns in the guest's memory after 5 seconds 7.398 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.994
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.981
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 7.001
And I prepare Tails for memory erasure tests 0.449
And I find very few patterns in the guest's memory 1.791 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.523
Then patterns cover at least 99% of the test FS size in the guest's memory 2.292 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.466 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.894
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.522
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 6.972
And I prepare Tails for memory erasure tests 0.611
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.666
Then I find very few patterns in the guest's memory 2.083 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.585
Then patterns cover at least 75% of the test FS size in the guest's memory 2.737 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.124
Then I find very few patterns in the guest's memory after 3 seconds 5.410 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.464
Then patterns cover at least 99% of the test FS size in the guest's memory 2.208 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 4.979 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.212
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.543
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 7.426
And I prepare Tails for memory erasure tests 0.748
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.063
Then I find very few patterns in the guest's memory 2.011 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.535
Then patterns cover at least 99% of the test FS size in the guest's memory 1.910 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.671
Then I find very few patterns in the guest's memory after 3 seconds 4.672 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.595
And I read the content of the test FS 0.354
Then patterns cover at least 99% of the test FS size in the guest's memory 1.943 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.591
Then I find very few patterns in the guest's memory after 3 seconds 5.018 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.172
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.690
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 7.197
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the root filesystem 13.707
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.234
Then patterns cover at least 128 MiB in the guest's memory 1.605 
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 20.504 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.452
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:55.660
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 4:22.018
And I prepare Tails for memory erasure tests 0.615
When I fill a 128 MiB file with a known pattern on the persistent filesystem 12.022
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.997 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.690
After features/support/hooks.rb:100 0.013