Project Number Date
test_Tails_ISO_stable 6284 09 Apr 2026, 14:22

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 7:47.293 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
20.186
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 7.398
And I prepare Tails for memory erasure tests 0.371
When I start a process allocating 128 MiB of memory with a known pattern 2.392
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.151 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.772
Then I find very few patterns in the guest's memory after 5 seconds 7.100 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.118
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.462
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 7.009
And I prepare Tails for memory erasure tests 0.423
And I find very few patterns in the guest's memory 2.048 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.510
Then patterns cover at least 99% of the test FS size in the guest's memory 2.122 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.234
Then I find very few patterns in the guest's memory after 3 seconds 5.113 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.810
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.024
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 7.101
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.398
Then I find very few patterns in the guest's memory 2.099 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.399
Then patterns cover at least 75% of the test FS size in the guest's memory 2.484 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.427
Then I find very few patterns in the guest's memory after 3 seconds 5.136 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.530
Then patterns cover at least 99% of the test FS size in the guest's memory 2.327 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.471
Then I find very few patterns in the guest's memory after 3 seconds 4.931 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.784
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:8.289
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 6.918
And I prepare Tails for memory erasure tests 0.633
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.131
Then I find very few patterns in the guest's memory 2.513 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.742
Then patterns cover at least 99% of the test FS size in the guest's memory 2.290 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory after 3 seconds 4.870 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 5.030
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 2.260 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.790
Then I find very few patterns in the guest's memory after 3 seconds 5.066 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.225
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.854
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 7.283
And I prepare Tails for memory erasure tests 0.488
When I fill a 128 MiB file with a known pattern on the root filesystem 13.789
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.861
Then patterns cover at least 128 MiB in the guest's memory 1.844 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.578 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.782
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:33.476
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 4:0.917
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.062
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.086 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.803
After features/support/hooks.rb:100 0.016