Project Number Date
test_Tails_ISO_20860-unsafe-browser-desktop-portals 4 09 May 2025, 20:47

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 11:18.266 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.
24.625
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 8.655
And I prepare Tails for memory erasure tests 0.415
When I start a process allocating 128 MiB of memory with a known pattern 2.295
Then patterns cover at least 128 MiB in the guest's memory 3.604

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

When I kill the allocating process 0.797
Then I find very few patterns in the guest's memory after 5 seconds 8.857

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:330 0.765
After features/support/hooks.rb:100 0.000
25.734
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 8.119
And I prepare Tails for memory erasure tests 0.453
And I find very few patterns in the guest's memory 3.907

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.825
Then patterns cover at least 99% of the test FS size in the guest's memory 4.108

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

When I umount "/mnt" 0.558
Then I find very few patterns in the guest's memory after 3 seconds 6.760

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:330 0.778
After features/support/hooks.rb:100 0.000
49.468
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 8.540
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.959
Then I find very few patterns in the guest's memory 3.215

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.554
Then patterns cover at least 75% of the test FS size in the guest's memory 4.196

Pattern coverage: 86.766% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.019
Then I find very few patterns in the guest's memory after 3 seconds 6.497

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# read cache
When I mount the USB drive again 0.248
And I read the content of the test FS 0.958
Then patterns cover at least 99% of the test FS size in the guest's memory 4.341

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

When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 7.090

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:330 0.831
After features/support/hooks.rb:100 0.000
1:22.668
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 8.269
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.422
Then I find very few patterns in the guest's memory 2.827

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

# write cache
When I fill the USB drive with a known pattern 2.849
Then patterns cover at least 99% of the test FS size in the guest's memory 3.043

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

When I umount the USB drive 0.882
Then I find very few patterns in the guest's memory after 3 seconds 6.034

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

# read cache
When I mount the USB drive again 5.746
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 3.564

Pattern coverage: 106.116% (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 6.186

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

After features/support/hooks.rb:330 1.306
After features/support/hooks.rb:100 0.000
48.996
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 8.116
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the root filesystem 14.835
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.918
Then patterns cover at least 128 MiB in the guest's memory 2.956

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

When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.741

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:330 3.513
After features/support/hooks.rb:100 0.000
7:26.773
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 6:44.264
And I prepare Tails for memory erasure tests 0.527
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.840
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.127

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:330 3.487
After features/support/hooks.rb:100 0.010