Project Number Date
test_Tails_ISO_20979-pdfarranger 5 31 May 2025, 02:44

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 11:28.686 Passed
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.
24.604
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 8.217
And I prepare Tails for memory erasure tests 0.473
When I start a process allocating 128 MiB of memory with a known pattern 2.283
Then patterns cover at least 128 MiB in the guest's memory 4.026

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.687
Then I find very few patterns in the guest's memory after 5 seconds 8.916

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:330 0.912
After features/support/hooks.rb:100 0.000
25.789
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 8.224
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 3.720

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.965
Then patterns cover at least 99% of the test FS size in the guest's memory 4.100

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.627
Then I find very few patterns in the guest's memory after 3 seconds 6.747

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:330 0.734
After features/support/hooks.rb:100 0.000
49.776
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 8.209
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.119
Then I find very few patterns in the guest's memory 3.789

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.829
Then patterns cover at least 75% of the test FS size in the guest's memory 4.278

Pattern coverage: 88.480% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.996
Then I find very few patterns in the guest's memory after 3 seconds 6.716

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.644
Then patterns cover at least 99% of the test FS size in the guest's memory 4.324

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.604
Then I find very few patterns in the guest's memory after 3 seconds 6.590

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:330 0.745
After features/support/hooks.rb:100 0.000
1:21.903
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 8.259
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 42.671
Then I find very few patterns in the guest's memory 2.769

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.380
Then patterns cover at least 99% of the test FS size in the guest's memory 3.059

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.001
Then I find very few patterns in the guest's memory after 3 seconds 6.020

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 4.516
And I read the content of the test FS 0.601
Then patterns cover at least 99% of the test FS size in the guest's memory 3.468

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.533
Then I find very few patterns in the guest's memory after 3 seconds 6.217

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:330 1.175
After features/support/hooks.rb:100 0.000
51.889
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 8.501
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the root filesystem 16.247
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.527
Then patterns cover at least 128 MiB in the guest's memory 3.222

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.894

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

After features/support/hooks.rb:330 3.534
After features/support/hooks.rb:100 0.000
7:34.723
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 6:48.094
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.897
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.306

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:330 3.482
After features/support/hooks.rb:100 0.010