Project Number Date
test_Tails_ISO_devel 3423 10 Jun 2024, 12:43

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 12:34.007 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.
28.439
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.630
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 5.238
Then patterns cover at least 128 MiB in the guest's memory 4.988

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

When I kill the allocating process 3.993
Then I find very few patterns in the guest's memory 5.183

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

After features/support/hooks.rb:315 1.226
After features/support/hooks.rb:100 0.000
32.352
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 9.939
And I prepare Tails for memory erasure tests 0.486
And I find very few patterns in the guest's memory 4.872

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.296
Then patterns cover at least 99% of the test FS size in the guest's memory 6.762

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

When I umount "/mnt" 1.656
Then I find very few patterns in the guest's memory 5.338

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

After features/support/hooks.rb:315 3.306
After features/support/hooks.rb:100 0.000
57.483
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.226
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.339
Then I find very few patterns in the guest's memory 5.194

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.413
Then patterns cover at least 86% of the test FS size in the guest's memory 4.488

Pattern coverage: 88.566% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 4.139
Then I find very few patterns in the guest's memory 4.751

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# read cache
When I mount the USB drive again 1.031
And I read the content of the test FS 1.221
Then patterns cover at least 99% of the test FS size in the guest's memory 8.790

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

When I umount the USB drive 0.518
Then I find very few patterns in the guest's memory 4.930

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:315 1.145
After features/support/hooks.rb:100 0.000
1:17.499
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.489
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.766
Then I find very few patterns in the guest's memory 5.211

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

# write cache
When I fill the USB drive with a known pattern 2.001
Then patterns cover at least 99% of the test FS size in the guest's memory 3.364

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

When I umount the USB drive 1.326
Then I find very few patterns in the guest's memory 3.822

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

# read cache
When I mount the USB drive again 6.489
And I read the content of the test FS 0.581
Then patterns cover at least 99% of the test FS size in the guest's memory 3.254

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

When I umount the USB drive 2.674
Then I find very few patterns in the guest's memory 4.094

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

After features/support/hooks.rb:315 0.886
After features/support/hooks.rb:100 0.000
53.639
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.337
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the root filesystem 18.393
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.874
Then patterns cover at least 128 MiB in the guest's memory 2.866

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

When I trigger shutdown 0.018
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.703

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:315 3.494
After features/support/hooks.rb:100 0.000
8:24.593
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:40.035
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.801
When I trigger shutdown 0.012
And I wait 20 seconds 20.003

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.317

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

After features/support/hooks.rb:315 3.517
After features/support/hooks.rb:100 0.014