Project Number Date
test_Tails_ISO_stable 4719 14 Mar 2024, 16:53

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 9:46.670 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.
18.703
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.137
And I prepare Tails for memory erasure tests 0.758
When I start a process allocating 128 MiB of memory with a known pattern 1.236
Then patterns cover at least 128 MiB in the guest's memory 3.972

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

When I kill the allocating process 0.654
Then I find very few patterns in the guest's memory 3.943

Pattern coverage: 0.000% (0 MiB out of 938 MiB reference memory)

After features/support/hooks.rb:291 1.050
After features/support/hooks.rb:75 0.000
20.945
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.223
And I prepare Tails for memory erasure tests 0.473
And I find very few patterns in the guest's memory 3.443

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.458
Then patterns cover at least 99% of the test FS size in the guest's memory 3.206

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

When I umount "/mnt" 0.445
Then I find very few patterns in the guest's memory 3.694

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

After features/support/hooks.rb:291 1.437
After features/support/hooks.rb:75 0.000
40.775
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.278
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.847
Then I find very few patterns in the guest's memory 4.021

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.475
Then patterns cover at least 86% of the test FS size in the guest's memory 3.138

Pattern coverage: 95.050% (121 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.023
Then I find very few patterns in the guest's memory 3.645

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

# read cache
When I mount the USB drive again 0.248
And I read the content of the test FS 0.570
Then patterns cover at least 99% of the test FS size in the guest's memory 3.276

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory 4.296

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

After features/support/hooks.rb:291 0.708
After features/support/hooks.rb:75 0.000
1:2.927
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.945
And I prepare Tails for memory erasure tests 0.702
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.492
Then I find very few patterns in the guest's memory 3.648

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.544
Then patterns cover at least 99% of the test FS size in the guest's memory 2.850

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.748
Then I find very few patterns in the guest's memory 3.740

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

# read cache
When I mount the USB drive again 4.369
And I read the content of the test FS 0.538
Then patterns cover at least 99% of the test FS size in the guest's memory 2.861

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.074
Then I find very few patterns in the guest's memory 3.412

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

After features/support/hooks.rb:291 0.801
After features/support/hooks.rb:75 0.001
47.461
Before features/support/hooks.rb:245 0.004
Given I have started Tails from DVD without network and logged in 7.958
And I prepare Tails for memory erasure tests 0.485
When I fill a 128 MiB file with a known pattern on the root filesystem 13.238
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.575
Then patterns cover at least 128 MiB in the guest's memory 2.439

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.732

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

After features/support/hooks.rb:291 3.524
After features/support/hooks.rb:75 0.000
6:35.857
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 5:53.033
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.232
When I trigger shutdown 0.010
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.152

Pattern coverage: 0.000% (0 MiB out of 944 MiB reference memory)

After features/support/hooks.rb:291 3.716
After features/support/hooks.rb:75 0.011