Project Number Date
test_Tails_ISO_21523-21524-unsafe-browser-onionshare-no-dbus-access 2 20 Apr 2026, 22:16

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 7:44.193 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
19.175
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 6.836
And I prepare Tails for memory erasure tests 0.376
When I start a process allocating 128 MiB of memory with a known pattern 2.387
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.211 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.180
Then I find very few patterns in the guest's memory after 5 seconds 7.182 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.609
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.360
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 20.534
And I prepare Tails for memory erasure tests 0.497
And I find very few patterns in the guest's memory 2.140 
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 1.601
Then patterns cover at least 99% of the test FS size in the guest's memory 2.009 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.357
Then I find very few patterns in the guest's memory after 3 seconds 5.219 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.125
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.980
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 7.449
And I prepare Tails for memory erasure tests 0.357
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.563
Then I find very few patterns in the guest's memory 1.870 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.398
Then patterns cover at least 75% of the test FS size in the guest's memory 2.192 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.649
Then I find very few patterns in the guest's memory after 3 seconds 4.958 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.195
And I read the content of the test FS 0.526
Then patterns cover at least 99% of the test FS size in the guest's memory 2.412 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 5.007 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.131
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.706
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.274
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.336
Then I find very few patterns in the guest's memory 1.817 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.751
Then patterns cover at least 99% of the test FS size in the guest's memory 2.155 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.694
Then I find very few patterns in the guest's memory after 3 seconds 5.038 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 3.459
And I read the content of the test FS 0.335
Then patterns cover at least 99% of the test FS size in the guest's memory 2.112 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.548
Then I find very few patterns in the guest's memory after 3 seconds 4.739 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.990
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.098
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.126
And I prepare Tails for memory erasure tests 0.517
When I fill a 128 MiB file with a known pattern on the root filesystem 13.374
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.306
Then patterns cover at least 128 MiB in the guest's memory 1.963 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.798 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.791
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:30.872
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:58.139
And I prepare Tails for memory erasure tests 0.477
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.298
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.950 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.386
After features/support/hooks.rb:100 0.011