Project Number Date
test_Tails_ISO_stable 4868 03 Jun 2024, 18:15

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 11:43.045 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.
20.462
Before features/support/hooks.rb:265 0.004
Given I have started Tails from DVD without network and logged in 9.102
And I prepare Tails for memory erasure tests 0.518
When I start a process allocating 128 MiB of memory with a known pattern 1.197
Then patterns cover at least 128 MiB in the guest's memory 3.866

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

When I kill the allocating process 1.471
Then I find very few patterns in the guest's memory 4.306

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:311 0.941
After features/support/hooks.rb:100 0.000
24.032
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.273
And I prepare Tails for memory erasure tests 0.441
And I find very few patterns in the guest's memory 4.205

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.129
Then patterns cover at least 99% of the test FS size in the guest's memory 3.776

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

When I umount "/mnt" 0.831
Then I find very few patterns in the guest's memory 4.375

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:311 1.331
After features/support/hooks.rb:100 0.000
46.839
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 8.232
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.110
Then I find very few patterns in the guest's memory 4.328

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.467
Then patterns cover at least 86% of the test FS size in the guest's memory 3.598

Pattern coverage: 91.453% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.600
Then I find very few patterns in the guest's memory 5.043

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.908
And I read the content of the test FS 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 3.613

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.834
Then I find very few patterns in the guest's memory 4.106

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:311 1.566
After features/support/hooks.rb:100 0.000
1:18.494
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.561
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.288
Then I find very few patterns in the guest's memory 3.821

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.221
Then patterns cover at least 99% of the test FS size in the guest's memory 3.191

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

When I umount the USB drive 7.639
Then I find very few patterns in the guest's memory 3.896

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

# read cache
When I mount the USB drive again 5.613
And I read the content of the test FS 0.396
Then patterns cover at least 99% of the test FS size in the guest's memory 3.038

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.266
Then I find very few patterns in the guest's memory 4.110

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:311 0.755
After features/support/hooks.rb:100 0.000
53.825
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 8.177
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 18.292
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.140
Then patterns cover at least 128 MiB in the guest's memory 2.898

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.873

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:311 3.500
After features/support/hooks.rb:100 0.000
7:59.392
Before features/support/hooks.rb:265 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:14.604
And I prepare Tails for memory erasure tests 0.495
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.060
When I trigger shutdown 0.010
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.203

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:311 3.594
After features/support/hooks.rb:100 0.012