Project Number Date
test_Tails_ISO_stable 4993 02 Aug 2024, 08:40

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 11:33.519 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.
20.821
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.317
And I prepare Tails for memory erasure tests 0.655
When I start a process allocating 128 MiB of memory with a known pattern 2.352
Then patterns cover at least 128 MiB in the guest's memory 3.826

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

When I kill the allocating process 1.903
Then I find very few patterns in the guest's memory 3.765

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 2.965
After features/support/hooks.rb:100 0.000
25.738
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.489
And I prepare Tails for memory erasure tests 1.481
And I find very few patterns in the guest's memory 4.147

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.055
Then patterns cover at least 99% of the test FS size in the guest's memory 3.713

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

When I umount "/mnt" 1.130
Then I find very few patterns in the guest's memory 4.720

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 2.099
After features/support/hooks.rb:100 0.000
50.696
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.859
And I prepare Tails for memory erasure tests 0.751
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.318
Then I find very few patterns in the guest's memory 4.705

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.446
Then patterns cover at least 86% of the test FS size in the guest's memory 4.370

Pattern coverage: 88.398% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.748
Then I find very few patterns in the guest's memory 4.761

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# read cache
When I mount the USB drive again 0.294
And I read the content of the test FS 0.879
Then patterns cover at least 99% of the test FS size in the guest's memory 4.152

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

When I umount the USB drive 2.844
Then I find very few patterns in the guest's memory 4.564

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 1.364
After features/support/hooks.rb:100 0.000
1:16.528
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.517
And I prepare Tails for memory erasure tests 0.623
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.814
Then I find very few patterns in the guest's memory 3.501

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.057
Then patterns cover at least 99% of the test FS size in the guest's memory 2.901

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

When I umount the USB drive 0.970
Then I find very few patterns in the guest's memory 3.296

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 6.878
And I read the content of the test FS 0.526
Then patterns cover at least 99% of the test FS size in the guest's memory 3.287

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

When I umount the USB drive 1.115
Then I find very few patterns in the guest's memory 4.037

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 1.014
After features/support/hooks.rb:100 0.000
52.675
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.364
And I prepare Tails for memory erasure tests 0.473
When I fill a 128 MiB file with a known pattern on the root filesystem 13.826
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.882
Then patterns cover at least 128 MiB in the guest's memory 3.217

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.888

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 3.537
After features/support/hooks.rb:100 0.000
7:47.058
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:1.205
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.944
When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.465

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.602
After features/support/hooks.rb:100 0.013