Project Number Date
test_Tails_ISO_stable 5213 23 Oct 2024, 12:50

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:25.494 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.
22.217
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.616
And I prepare Tails for memory erasure tests 0.507
When I start a process allocating 128 MiB of memory with a known pattern 2.365
Then patterns cover at least 128 MiB in the guest's memory 3.487

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

When I kill the allocating process 1.238
Then I find very few patterns in the guest's memory after 3 seconds 6.002

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

After features/support/hooks.rb:326 0.732
After features/support/hooks.rb:100 0.000
25.995
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.379
And I prepare Tails for memory erasure tests 0.589
And I find very few patterns in the guest's memory 3.954

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.784
Then patterns cover at least 99% of the test FS size in the guest's memory 4.208

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

When I umount "/mnt" 0.532
Then I find very few patterns in the guest's memory after 3 seconds 6.547

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

After features/support/hooks.rb:326 1.013
After features/support/hooks.rb:100 0.000
52.189
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.199
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.056
Then I find very few patterns in the guest's memory 5.796

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

# write cache
When I fill the USB drive with a known pattern 3.045
Then patterns cover at least 75% of the test FS size in the guest's memory 4.061

Pattern coverage: 86.579% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.688
Then I find very few patterns in the guest's memory after 3 seconds 6.608

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

# read cache
When I mount the USB drive again 0.408
And I read the content of the test FS 1.034
Then patterns cover at least 99% of the test FS size in the guest's memory 4.132

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

When I umount the USB drive 0.995
Then I find very few patterns in the guest's memory after 3 seconds 6.661

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

After features/support/hooks.rb:326 0.798
After features/support/hooks.rb:100 0.000
1:21.360
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.006
And I prepare Tails for memory erasure tests 0.533
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.482
Then I find very few patterns in the guest's memory 3.201

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.700
Then patterns cover at least 99% of the test FS size in the guest's memory 3.783

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

When I umount the USB drive 1.151
Then I find very few patterns in the guest's memory after 3 seconds 6.152

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 5.431
And I read the content of the test FS 0.958
Then patterns cover at least 99% of the test FS size in the guest's memory 4.859

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

When I umount the USB drive 1.337
Then I find very few patterns in the guest's memory after 3 seconds 6.759

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 2.265
After features/support/hooks.rb:100 0.000
50.947
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.113
And I prepare Tails for memory erasure tests 0.526
When I fill a 128 MiB file with a known pattern on the root filesystem 15.912
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.002
Then patterns cover at least 128 MiB in the guest's memory 3.527

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.851

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.503
After features/support/hooks.rb:100 0.000
7:32.783
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:46.878
And I prepare Tails for memory erasure tests 0.402
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.970
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.518

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:326 3.541
After features/support/hooks.rb:100 0.010