Project Number Date
test_Tails_ISO_devel 3245 21 Jan 2024, 12:42

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 13:56.926 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.
19.644
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.266
And I prepare Tails for memory erasure tests 0.691
When I start a process allocating 128 MiB of memory with a known pattern 2.399
Then patterns cover at least 128 MiB in the guest's memory 3.714

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.427
Then I find very few patterns in the guest's memory 4.143

Pattern coverage: 0.000% (0 MiB out of 1201 MiB reference memory)

After features/support/hooks.rb:291 1.075
After features/support/hooks.rb:75 0.000
1:3.220
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.862
And I prepare Tails for memory erasure tests 0.564
And I find very few patterns in the guest's memory 4.014

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 41.670
Then patterns cover at least 99% of the test FS size in the guest's memory 4.021

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

When I umount "/mnt" 0.604
Then I find very few patterns in the guest's memory 4.481

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

After features/support/hooks.rb:291 1.962
After features/support/hooks.rb:75 0.000
3:3.325
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.586
And I prepare Tails for memory erasure tests 0.678
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.823
Then I find very few patterns in the guest's memory 4.555

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:25.018
Then patterns cover at least 86% of the test FS size in the guest's memory 3.029

Pattern coverage: 95.723% (119 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory 3.912

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

# read cache
When I mount the USB drive again 0.250
And I read the content of the test FS 0.692
Then patterns cover at least 99% of the test FS size in the guest's memory 3.239

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory 4.427

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

After features/support/hooks.rb:291 0.884
After features/support/hooks.rb:75 0.000
2:27.603
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.284
And I prepare Tails for memory erasure tests 0.662
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.515
Then I find very few patterns in the guest's memory 4.045

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:31.243
Then patterns cover at least 99% of the test FS size in the guest's memory 3.205

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 1.230
Then I find very few patterns in the guest's memory 3.764

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

# read cache
When I mount the USB drive again 3.769
And I read the content of the test FS 0.386
Then patterns cover at least 99% of the test FS size in the guest's memory 3.179

Pattern coverage: 108.663% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory 3.875

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

After features/support/hooks.rb:291 0.824
After features/support/hooks.rb:75 0.000
52.577
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.768
And I prepare Tails for memory erasure tests 0.468
When I fill a 128 MiB file with a known pattern on the root filesystem 16.217
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.406
Then patterns cover at least 128 MiB in the guest's memory 3.217

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

When I trigger shutdown 0.548
And I wait 20 seconds 20.007

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.943

Pattern coverage: 0.000% (0 MiB out of 1184 MiB reference memory)

After features/support/hooks.rb:291 3.443
After features/support/hooks.rb:75 0.000
6:10.555
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 5:21.869
And I prepare Tails for memory erasure tests 0.556
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.421
When I trigger shutdown 0.354
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.337

Pattern coverage: 0.000% (0 MiB out of 1197 MiB reference memory)

After features/support/hooks.rb:291 3.481
After features/support/hooks.rb:75 0.013