Project Number Date
test_Tails_ISO_stable 4605 08 Jan 2024, 16:15

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 14:7.458 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.
16.879
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.712
And I prepare Tails for memory erasure tests 0.779
When I start a process allocating 128 MiB of memory with a known pattern 1.247
Then patterns cover at least 128 MiB in the guest's memory 3.019

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

When I kill the allocating process 0.398
Then I find very few patterns in the guest's memory 3.720

Pattern coverage: 0.000% (0 MiB out of 1206 MiB reference memory)

After features/support/hooks.rb:291 1.014
After features/support/hooks.rb:75 0.000
59.451
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.529
And I prepare Tails for memory erasure tests 0.769
And I find very few patterns in the guest's memory 3.847

Pattern coverage: 0.000% (0 MiB out of 1206 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.586
Then patterns cover at least 99% of the test FS size in the guest's memory 3.085

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

When I umount "/mnt" 0.944
Then I find very few patterns in the guest's memory 3.689

Pattern coverage: 0.000% (0 MiB out of 1206 MiB reference memory)

After features/support/hooks.rb:291 0.784
After features/support/hooks.rb:75 0.000
3:26.631
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.264
And I prepare Tails for memory erasure tests 0.451
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.947
Then I find very few patterns in the guest's memory 3.845

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:51.531
Then patterns cover at least 86% of the test FS size in the guest's memory 3.194

Pattern coverage: 96.406% (120 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.598
Then I find very few patterns in the guest's memory 3.578

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# read cache
When I mount the USB drive again 0.248
And I read the content of the test FS 0.558
Then patterns cover at least 99% of the test FS size in the guest's memory 2.919

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

When I umount the USB drive 0.734
Then I find very few patterns in the guest's memory 3.757

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

After features/support/hooks.rb:291 0.761
After features/support/hooks.rb:75 0.000
2:35.540
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.761
And I prepare Tails for memory erasure tests 0.642
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.865
Then I find very few patterns in the guest's memory 3.488

Pattern coverage: 0.000% (0 MiB out of 1179 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:36.105
Then patterns cover at least 99% of the test FS size in the guest's memory 3.348

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

When I umount the USB drive 0.622
Then I find very few patterns in the guest's memory 3.907

Pattern coverage: 0.000% (0 MiB out of 1179 MiB reference memory)

# read cache
When I mount the USB drive again 6.606
And I read the content of the test FS 0.541
Then patterns cover at least 99% of the test FS size in the guest's memory 3.323

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

When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory 3.903

Pattern coverage: 0.000% (0 MiB out of 1179 MiB reference memory)

After features/support/hooks.rb:291 0.756
After features/support/hooks.rb:75 0.000
47.924
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.808
And I prepare Tails for memory erasure tests 0.687
When I fill a 128 MiB file with a known pattern on the root filesystem 11.552
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.524
Then patterns cover at least 128 MiB in the guest's memory 3.004

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

When I trigger shutdown 1.470
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.856

Pattern coverage: 0.000% (0 MiB out of 1208 MiB reference memory)

After features/support/hooks.rb:291 3.458
After features/support/hooks.rb:75 0.000
6:1.031
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 5:18.616
And I prepare Tails for memory erasure tests 0.471
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.307
When I trigger shutdown 0.407
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.209

Pattern coverage: 0.000% (0 MiB out of 1175 MiB reference memory)

After features/support/hooks.rb:291 3.516
After features/support/hooks.rb:75 0.010