Project Number Date
test_Tails_ISO_stable 5925 02 Nov 2025, 12:07

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 14:2.207 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
45.535
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 8.402
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.178 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.209
Then I find very few patterns in the guest's memory after 5 seconds 19.092 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 1.057
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.816
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 8.799
And I prepare Tails for memory erasure tests 0.673
And I find very few patterns in the guest's memory 16.761 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.668
Then patterns cover at least 99% of the test FS size in the guest's memory 17.122 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.460
Then I find very few patterns in the guest's memory after 3 seconds 17.331 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 1.031
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:47.095
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 8.507
And I prepare Tails for memory erasure tests 0.485
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.423
Then I find very few patterns in the guest's memory 21.453 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.501
Then patterns cover at least 75% of the test FS size in the guest's memory 15.898 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.889
Then I find very few patterns in the guest's memory after 3 seconds 16.983 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 0.224
And I read the content of the test FS 0.854
Then patterns cover at least 99% of the test FS size in the guest's memory 14.877 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.532
Then I find very few patterns in the guest's memory after 3 seconds 17.462 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.879
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:15.587
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 8.577
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.454
Then I find very few patterns in the guest's memory 19.249 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.887
Then patterns cover at least 99% of the test FS size in the guest's memory 18.119 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.751
Then I find very few patterns in the guest's memory after 3 seconds 17.080 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 5.059
And I read the content of the test FS 0.521
Then patterns cover at least 99% of the test FS size in the guest's memory 14.647 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.660
Then I find very few patterns in the guest's memory after 3 seconds 16.193 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 1.370
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.651
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 9.267
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the root filesystem 10.028
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.962
Then patterns cover at least 128 MiB in the guest's memory 14.985 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.984 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:9.521
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 6:34.183
And I prepare Tails for memory erasure tests 0.432
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.341
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 25.549 
Pattern coverage: 0.000% (0 MiB out of 1446 MiB reference memory)
After features/support/hooks.rb:331 3.797
After features/support/hooks.rb:100 0.014