Project Number Date
test_Tails_ISO_20267-webtunnel 1 09 Jul 2025, 03:39

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 14:32.750 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.
33.039
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.017
Given I have started Tails from DVD without network and logged in 15.010
And I prepare Tails for memory erasure tests 0.461
When I start a process allocating 128 MiB of memory with a known pattern 1.187
Then patterns cover at least 128 MiB in the guest's memory 4.054

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

When I kill the allocating process 0.709
Then I find very few patterns in the guest's memory after 5 seconds 11.617

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:330 0.803
After features/support/hooks.rb:100 0.000
39.492
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 16.113
And I prepare Tails for memory erasure tests 0.623
And I find very few patterns in the guest's memory 3.297

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.648
Then patterns cover at least 99% of the test FS size in the guest's memory 3.402

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

When I umount "/mnt" 0.556
Then I find very few patterns in the guest's memory after 3 seconds 13.850

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:330 0.784
After features/support/hooks.rb:100 0.000
1:5.661
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 10.570
And I prepare Tails for memory erasure tests 2.780
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.731
Then I find very few patterns in the guest's memory 8.744

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.721
Then patterns cover at least 75% of the test FS size in the guest's memory 3.270

Pattern coverage: 91.793% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.894
Then I find very few patterns in the guest's memory after 3 seconds 11.304

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# read cache
When I mount the USB drive again 0.418
And I read the content of the test FS 0.714
Then patterns cover at least 99% of the test FS size in the guest's memory 4.487

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

When I umount the USB drive 0.654
Then I find very few patterns in the guest's memory after 3 seconds 6.367

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:330 1.131
After features/support/hooks.rb:100 0.000
1:50.357
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 15.854
And I prepare Tails for memory erasure tests 0.612
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 52.994
Then I find very few patterns in the guest's memory 3.009

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.843
Then patterns cover at least 99% of the test FS size in the guest's memory 2.967

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

When I umount the USB drive 1.106
Then I find very few patterns in the guest's memory after 3 seconds 11.168

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 4.094
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.597

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

When I umount the USB drive 0.816
Then I find very few patterns in the guest's memory after 3 seconds 12.859

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:330 1.823
After features/support/hooks.rb:100 0.000
59.130
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 9.294
And I prepare Tails for memory erasure tests 1.985
When I fill a 128 MiB file with a known pattern on the root filesystem 18.618
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.131
Then patterns cover at least 128 MiB in the guest's memory 4.289

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.798

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:330 3.548
After features/support/hooks.rb:100 0.000
9:25.068
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 8:39.073
And I prepare Tails for memory erasure tests 0.523
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.302
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.155

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:330 4.315
After features/support/hooks.rb:100 0.033