Project Number Date
test_Tails_ISO_stable 4910 23 Jun 2024, 12:19

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 11:45.977 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.
22.613
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.546
And I prepare Tails for memory erasure tests 0.592
When I start a process allocating 128 MiB of memory with a known pattern 4.123
Then patterns cover at least 128 MiB in the guest's memory 3.585

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

When I kill the allocating process 1.744
Then I find very few patterns in the guest's memory 4.021

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

After features/support/hooks.rb:326 1.052
After features/support/hooks.rb:100 0.000
26.933
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.337
And I prepare Tails for memory erasure tests 0.430
And I find very few patterns in the guest's memory 3.542

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.587
Then patterns cover at least 99% of the test FS size in the guest's memory 4.594

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

When I umount "/mnt" 2.144
Then I find very few patterns in the guest's memory 5.297

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.903
After features/support/hooks.rb:100 0.000
47.700
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.537
And I prepare Tails for memory erasure tests 0.419
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.260
Then I find very few patterns in the guest's memory 4.184

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

# write cache
When I fill the USB drive with a known pattern 3.529
Then patterns cover at least 86% of the test FS size in the guest's memory 3.350

Pattern coverage: 93.066% (118 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.739
Then I find very few patterns in the guest's memory 3.822

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

# read cache
When I mount the USB drive again 0.986
And I read the content of the test FS 0.520
Then patterns cover at least 99% of the test FS size in the guest's memory 4.086

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

When I umount the USB drive 1.478
Then I find very few patterns in the guest's memory 4.782

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

After features/support/hooks.rb:326 0.828
After features/support/hooks.rb:100 0.000
1:21.899
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.170
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.123
Then I find very few patterns in the guest's memory 3.784

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

# write cache
When I fill the USB drive with a known pattern 2.670
Then patterns cover at least 99% of the test FS size in the guest's memory 3.175

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

When I umount the USB drive 1.916
Then I find very few patterns in the guest's memory 3.653

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

# read cache
When I mount the USB drive again 6.894
And I read the content of the test FS 0.621
Then patterns cover at least 99% of the test FS size in the guest's memory 3.530

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

When I umount the USB drive 0.802
Then I find very few patterns in the guest's memory 4.121

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

After features/support/hooks.rb:326 0.930
After features/support/hooks.rb:100 0.000
54.262
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.493
And I prepare Tails for memory erasure tests 0.445
When I fill a 128 MiB file with a known pattern on the root filesystem 18.404
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.869
Then patterns cover at least 128 MiB in the guest's memory 3.118

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.897

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 3.512
After features/support/hooks.rb:100 0.000
7:52.568
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 7:9.474
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.548
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 2.126

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

After features/support/hooks.rb:326 3.468
After features/support/hooks.rb:100 0.010