Project Number Date
test_Tails_ISO_devel 4074 15 Nov 2025, 10:00

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 15:46.286 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
47.755
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 8.897
And I prepare Tails for memory erasure tests 0.456
When I start a process allocating 128 MiB of memory with a known pattern 2.339
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.537 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.886
Then I find very few patterns in the guest's memory after 5 seconds 19.637 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 1.025
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.566
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 0.399
And I find very few patterns in the guest's memory 14.878 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.597
Then patterns cover at least 99% of the test FS size in the guest's memory 15.436 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.437
Then I find very few patterns in the guest's memory after 3 seconds 19.238 
Pattern coverage: 0.000% (0 MiB out of 1523 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
3:1.538
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 8.512
And I prepare Tails for memory erasure tests 0.672
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.367
Then I find very few patterns in the guest's memory 16.056 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.673
Then patterns cover at least 75% of the test FS size in the guest's memory 37.302 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.088
Then I find very few patterns in the guest's memory after 3 seconds 36.460 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
# read cache
When I mount the USB drive again 0.309
And I read the content of the test FS 1.525
Then patterns cover at least 99% of the test FS size in the guest's memory 34.650 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory after 3 seconds 34.435 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 0.606
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:21.298
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 8.773
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.990
Then I find very few patterns in the guest's memory 18.362 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.732
Then patterns cover at least 99% of the test FS size in the guest's memory 15.487 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.753
Then I find very few patterns in the guest's memory after 3 seconds 16.537 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# read cache
When I mount the USB drive again 4.663
And I read the content of the test FS 0.500
Then patterns cover at least 99% of the test FS size in the guest's memory 15.153 
Pattern coverage: 106.115% (97 MiB out of 91 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 21.826 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 3.295
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.862
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 12.716
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the root filesystem 10.903
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.385
Then patterns cover at least 128 MiB in the guest's memory 12.737 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 24.662 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:331 4.301
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:30.265
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 6:57.202
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.131
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.556 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 3.610
After features/support/hooks.rb:100 0.027