Project Number Date
test_Tails_ISO_stable 4630 23 Jan 2024, 13:36

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 14:23.662 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.
18.082
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.825
And I prepare Tails for memory erasure tests 0.471
When I start a process allocating 128 MiB of memory with a known pattern 2.381
Then patterns cover at least 128 MiB in the guest's memory 3.519

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

When I kill the allocating process 0.249
Then I find very few patterns in the guest's memory 3.635

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

After features/support/hooks.rb:291 1.082
After features/support/hooks.rb:75 0.000
59.744
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.830
And I prepare Tails for memory erasure tests 0.547
And I find very few patterns in the guest's memory 4.217

Pattern coverage: 0.000% (0 MiB out of 1193 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.089
Then patterns cover at least 99% of the test FS size in the guest's memory 3.843

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

When I umount "/mnt" 0.245
Then I find very few patterns in the guest's memory 4.971

Pattern coverage: 0.000% (0 MiB out of 1193 MiB reference memory)

After features/support/hooks.rb:291 0.724
After features/support/hooks.rb:75 0.000
3:10.870
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.568
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.913
Then I find very few patterns in the guest's memory 4.714

Pattern coverage: 0.000% (0 MiB out of 1178 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:30.523
Then patterns cover at least 86% of the test FS size in the guest's memory 3.872

Pattern coverage: 94.447% (117 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.637
Then I find very few patterns in the guest's memory 4.393

Pattern coverage: 0.000% (0 MiB out of 1178 MiB reference memory)

# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.782
Then patterns cover at least 99% of the test FS size in the guest's memory 3.747

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

When I umount the USB drive 0.546
Then I find very few patterns in the guest's memory 4.508

Pattern coverage: 0.000% (0 MiB out of 1178 MiB reference memory)

After features/support/hooks.rb:291 0.730
After features/support/hooks.rb:75 0.000
2:55.534
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.775
And I prepare Tails for memory erasure tests 0.522
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.204
Then I find very few patterns in the guest's memory 3.968

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:1.072
Then patterns cover at least 99% of the test FS size in the guest's memory 2.784

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

When I umount the USB drive 0.583
Then I find very few patterns in the guest's memory 3.051

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

# read cache
When I mount the USB drive again 5.212
And I read the content of the test FS 0.406
Then patterns cover at least 99% of the test FS size in the guest's memory 2.659

Pattern coverage: 108.661% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory 3.822

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

After features/support/hooks.rb:291 0.751
After features/support/hooks.rb:75 0.001
51.726
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.848
And I prepare Tails for memory erasure tests 0.544
When I fill a 128 MiB file with a known pattern on the root filesystem 16.249
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.577
Then patterns cover at least 128 MiB in the guest's memory 2.972

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

When I trigger shutdown 0.635
And I wait 20 seconds 20.002

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.895

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

After features/support/hooks.rb:291 3.697
After features/support/hooks.rb:75 0.000
6:7.703
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 5:21.313
And I prepare Tails for memory erasure tests 0.473
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.160
When I trigger shutdown 0.366
And I wait 20 seconds 20.000

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.388

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

After features/support/hooks.rb:291 3.503
After features/support/hooks.rb:75 0.019