Project Number Date
test_Tails_ISO_stable 4720 15 Mar 2024, 12:15

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 10:4.385 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.
20.432
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.446
And I prepare Tails for memory erasure tests 0.491
When I start a process allocating 128 MiB of memory with a known pattern 1.201
Then patterns cover at least 128 MiB in the guest's memory 4.560

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

When I kill the allocating process 0.783
Then I find very few patterns in the guest's memory 4.948

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

After features/support/hooks.rb:291 0.751
After features/support/hooks.rb:75 0.000
22.716
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.198
And I prepare Tails for memory erasure tests 0.463
And I find very few patterns in the guest's memory 3.967

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.824
Then patterns cover at least 99% of the test FS size in the guest's memory 3.096

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

When I umount "/mnt" 0.386
Then I find very few patterns in the guest's memory 4.779

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

After features/support/hooks.rb:291 1.003
After features/support/hooks.rb:75 0.000
45.102
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.255
And I prepare Tails for memory erasure tests 0.521
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.922
Then I find very few patterns in the guest's memory 4.925

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.521
Then patterns cover at least 86% of the test FS size in the guest's memory 5.796

Pattern coverage: 99.048% (126 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.980
Then I find very few patterns in the guest's memory 4.585

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

# read cache
When I mount the USB drive again 0.219
And I read the content of the test FS 0.612
Then patterns cover at least 99% of the test FS size in the guest's memory 3.929

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

When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory 4.398

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

After features/support/hooks.rb:291 0.787
After features/support/hooks.rb:75 0.000
1:5.838
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.610
And I prepare Tails for memory erasure tests 0.523
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.369
Then I find very few patterns in the guest's memory 4.210

Pattern coverage: 0.000% (0 MiB out of 926 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.824
Then patterns cover at least 99% of the test FS size in the guest's memory 3.489

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

When I umount the USB drive 1.186
Then I find very few patterns in the guest's memory 3.793

Pattern coverage: 0.000% (0 MiB out of 926 MiB reference memory)

# read cache
When I mount the USB drive again 4.193
And I read the content of the test FS 0.505
Then patterns cover at least 99% of the test FS size in the guest's memory 3.447

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory 4.032

Pattern coverage: 0.000% (0 MiB out of 926 MiB reference memory)

After features/support/hooks.rb:291 0.807
After features/support/hooks.rb:75 0.000
49.358
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.087
And I prepare Tails for memory erasure tests 0.441
When I fill a 128 MiB file with a known pattern on the root filesystem 13.310
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.385
Then patterns cover at least 128 MiB in the guest's memory 3.150

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

When I trigger shutdown 0.023
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.940

Pattern coverage: 0.000% (0 MiB out of 933 MiB reference memory)

After features/support/hooks.rb:291 3.538
After features/support/hooks.rb:75 0.000
6:40.937
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:58.244
And I prepare Tails for memory erasure tests 0.393
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.913
When I trigger shutdown 0.009
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.356

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

After features/support/hooks.rb:291 3.525
After features/support/hooks.rb:75 0.014