Project Number Date
test_Tails_ISO_stable 4664 13 Feb 2024, 23:32

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 14:28.897 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.
17.392
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.533
And I prepare Tails for memory erasure tests 0.528
When I start a process allocating 128 MiB of memory with a known pattern 1.275
Then patterns cover at least 128 MiB in the guest's memory 3.610

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

When I kill the allocating process 0.362
Then I find very few patterns in the guest's memory 4.082

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 0.821
After features/support/hooks.rb:75 0.000
57.069
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.553
And I prepare Tails for memory erasure tests 0.467
And I find very few patterns in the guest's memory 3.899

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.694
Then patterns cover at least 99% of the test FS size in the guest's memory 3.401

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

When I umount "/mnt" 0.230
Then I find very few patterns in the guest's memory 3.822

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

After features/support/hooks.rb:291 0.710
After features/support/hooks.rb:75 0.000
3:32.582
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.620
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.778
Then I find very few patterns in the guest's memory 3.600

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

# write cache
When I fill the USB drive with a known pattern 2:58.358
Then patterns cover at least 86% of the test FS size in the guest's memory 3.154

Pattern coverage: 96.287% (119 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory 3.671

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

# read cache
When I mount the USB drive again 0.281
And I read the content of the test FS 0.646
Then patterns cover at least 99% of the test FS size in the guest's memory 3.024

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

When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory 4.082

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

After features/support/hooks.rb:291 1.254
After features/support/hooks.rb:75 0.000
2:57.541
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.428
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.698
Then I find very few patterns in the guest's memory 3.177

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:3.353
Then patterns cover at least 99% of the test FS size in the guest's memory 2.639

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

When I umount the USB drive 1.204
Then I find very few patterns in the guest's memory 3.215

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

# read cache
When I mount the USB drive again 3.304
And I read the content of the test FS 0.608
Then patterns cover at least 99% of the test FS size in the guest's memory 2.544

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory 3.457

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

After features/support/hooks.rb:291 0.834
After features/support/hooks.rb:75 0.000
47.615
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.802
And I prepare Tails for memory erasure tests 0.490
When I fill a 128 MiB file with a known pattern on the root filesystem 12.446
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.298
Then patterns cover at least 128 MiB in the guest's memory 2.814

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

When I trigger shutdown 0.608
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.138

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

After features/support/hooks.rb:291 3.445
After features/support/hooks.rb:75 0.000
5:56.696
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:13.639
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.140
When I trigger shutdown 0.286
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.155

Pattern coverage: 0.000% (0 MiB out of 1183 MiB reference memory)

After features/support/hooks.rb:291 3.457
After features/support/hooks.rb:75 0.011