Project Number Date
test_Tails_ISO_stable 4728 19 Mar 2024, 18:05

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 10:7.993 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.
21.757
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 9.570
And I prepare Tails for memory erasure tests 0.721
When I start a process allocating 128 MiB of memory with a known pattern 1.290
Then patterns cover at least 128 MiB in the guest's memory 4.353

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

When I kill the allocating process 0.829
Then I find very few patterns in the guest's memory 4.991

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:291 1.523
After features/support/hooks.rb:75 0.000
24.901
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.280
And I prepare Tails for memory erasure tests 0.701
And I find very few patterns in the guest's memory 4.752

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.840
Then patterns cover at least 99% of the test FS size in the guest's memory 3.991

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

When I umount "/mnt" 0.850
Then I find very few patterns in the guest's memory 4.484

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:291 0.734
After features/support/hooks.rb:75 0.000
47.393
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.235
And I prepare Tails for memory erasure tests 0.653
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.936
Then I find very few patterns in the guest's memory 4.758

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.886
Then patterns cover at least 86% of the test FS size in the guest's memory 4.605

Pattern coverage: 89.950% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.729
Then I find very few patterns in the guest's memory 4.663

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.793
Then patterns cover at least 99% of the test FS size in the guest's memory 4.035

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

When I umount the USB drive 0.480
Then I find very few patterns in the guest's memory 4.407

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:291 1.702
After features/support/hooks.rb:75 0.000
1:13.002
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.371
And I prepare Tails for memory erasure tests 0.726
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.001
Then I find very few patterns in the guest's memory 4.009

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.803
Then patterns cover at least 99% of the test FS size in the guest's memory 3.153

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

When I umount the USB drive 2.250
Then I find very few patterns in the guest's memory 4.093

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 8.101
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 3.539

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 3.195
Then I find very few patterns in the guest's memory 4.371

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:291 1.036
After features/support/hooks.rb:75 0.000
53.135
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.218
And I prepare Tails for memory erasure tests 0.630
When I fill a 128 MiB file with a known pattern on the root filesystem 16.975
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.973
Then patterns cover at least 128 MiB in the guest's memory 3.402

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

When I trigger shutdown 0.018
And I wait 20 seconds 20.008

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.907

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:291 3.568
After features/support/hooks.rb:75 0.000
6:27.803
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:42.192
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.809
When I trigger shutdown 0.015
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.265

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

After features/support/hooks.rb:291 3.550
After features/support/hooks.rb:75 0.010