Project Number Date
test_Tails_ISO_devel 3464 15 Jul 2024, 15:11

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 12:18.516 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.
26.387
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.884
And I prepare Tails for memory erasure tests 0.489
When I start a process allocating 128 MiB of memory with a known pattern 4.614
Then patterns cover at least 128 MiB in the guest's memory 4.213

Pattern coverage: 100.003% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 1.696
Then I find very few patterns in the guest's memory 6.489

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

After features/support/hooks.rb:326 1.551
After features/support/hooks.rb:100 0.000
28.715
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.631
And I prepare Tails for memory erasure tests 0.423
And I find very few patterns in the guest's memory 5.188

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.959
Then patterns cover at least 99% of the test FS size in the guest's memory 7.146

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

When I umount "/mnt" 0.631
Then I find very few patterns in the guest's memory 4.733

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

After features/support/hooks.rb:326 0.985
After features/support/hooks.rb:100 0.000
53.155
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.390
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.559
Then I find very few patterns in the guest's memory 4.835

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

# write cache
When I fill the USB drive with a known pattern 4.131
Then patterns cover at least 86% of the test FS size in the guest's memory 4.609

Pattern coverage: 88.964% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 4.722
Then I find very few patterns in the guest's memory 4.750

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

# read cache
When I mount the USB drive again 0.548
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 4.162

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

When I umount the USB drive 0.970
Then I find very few patterns in the guest's memory 4.357

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

After features/support/hooks.rb:326 2.559
After features/support/hooks.rb:100 0.000
1:14.702
Before features/support/hooks.rb:269 0.006
Given I have started Tails from DVD without network and logged in 8.340
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.026
Then I find very few patterns in the guest's memory 3.626

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

# write cache
When I fill the USB drive with a known pattern 2.828
Then patterns cover at least 99% of the test FS size in the guest's memory 3.647

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

When I umount the USB drive 1.788
Then I find very few patterns in the guest's memory 3.850

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

# read cache
When I mount the USB drive again 5.094
And I read the content of the test FS 0.686
Then patterns cover at least 99% of the test FS size in the guest's memory 3.487

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

When I umount the USB drive 0.829
Then I find very few patterns in the guest's memory 4.055

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

After features/support/hooks.rb:326 0.857
After features/support/hooks.rb:100 0.000
54.657
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.058
And I prepare Tails for memory erasure tests 0.574
When I fill a 128 MiB file with a known pattern on the root filesystem 17.087
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.135
Then patterns cover at least 128 MiB in the guest's memory 2.996

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

When I trigger shutdown 0.021
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.763

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 3.547
After features/support/hooks.rb:100 0.000
8:20.898
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 7:33.837
And I prepare Tails for memory erasure tests 0.456
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.251
When I trigger shutdown 0.013
And I wait 20 seconds 20.013

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.325

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

After features/support/hooks.rb:326 3.533
After features/support/hooks.rb:100 0.014