Project Number Date
test_Tails_ISO_stable 4642 28 Jan 2024, 12:17

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 14:42.355 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.
16.883
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.845
And I prepare Tails for memory erasure tests 0.474
When I start a process allocating 128 MiB of memory with a known pattern 1.373
Then patterns cover at least 128 MiB in the guest's memory 3.391

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

When I kill the allocating process 0.263
Then I find very few patterns in the guest's memory 3.535

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

After features/support/hooks.rb:291 1.132
After features/support/hooks.rb:75 0.000
56.876
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.362
And I prepare Tails for memory erasure tests 0.479
And I find very few patterns in the guest's memory 3.860

Pattern coverage: 0.000% (0 MiB out of 1188 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.302
Then patterns cover at least 99% of the test FS size in the guest's memory 2.951

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

When I umount "/mnt" 0.218
Then I find very few patterns in the guest's memory 3.702

Pattern coverage: 0.000% (0 MiB out of 1188 MiB reference memory)

After features/support/hooks.rb:291 0.743
After features/support/hooks.rb:75 0.000
3:51.647
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.686
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.885
Then I find very few patterns in the guest's memory 4.383

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3:16.507
Then patterns cover at least 86% of the test FS size in the guest's memory 3.101

Pattern coverage: 97.808% (121 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory 3.554

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

# read cache
When I mount the USB drive again 0.310
And I read the content of the test FS 0.515
Then patterns cover at least 99% of the test FS size in the guest's memory 2.765

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

When I umount the USB drive 0.315
Then I find very few patterns in the guest's memory 4.636

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

After features/support/hooks.rb:291 0.795
After features/support/hooks.rb:75 0.000
3:3.463
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 0.442
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.492
Then I find very few patterns in the guest's memory 3.331

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

# write cache
When I fill the USB drive with a known pattern 2:7.276
Then patterns cover at least 99% of the test FS size in the guest's memory 2.333

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

When I umount the USB drive 0.584
Then I find very few patterns in the guest's memory 3.253

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

# read cache
When I mount the USB drive again 3.583
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 2.497

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

When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory 3.227

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

After features/support/hooks.rb:291 0.847
After features/support/hooks.rb:75 0.000
48.863
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.342
And I prepare Tails for memory erasure tests 0.455
When I fill a 128 MiB file with a known pattern on the root filesystem 14.975
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.364
Then patterns cover at least 128 MiB in the guest's memory 2.410

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

When I trigger shutdown 0.592
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.702

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

After features/support/hooks.rb:291 3.456
After features/support/hooks.rb:75 0.000
5:44.621
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 5:2.563
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.329
When I trigger shutdown 0.238
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.035

Pattern coverage: 0.000% (0 MiB out of 1176 MiB reference memory)

After features/support/hooks.rb:291 3.451
After features/support/hooks.rb:75 0.010