Project Number Date
test_Tails_ISO_stable 4692 01 Mar 2024, 16:36

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 10:5.183 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.
22.911
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.513
And I prepare Tails for memory erasure tests 0.396
When I start a process allocating 128 MiB of memory with a known pattern 1.204
Then patterns cover at least 128 MiB in the guest's memory 7.260

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

When I kill the allocating process 0.813
Then I find very few patterns in the guest's memory 4.722

Pattern coverage: 0.000% (0 MiB out of 920 MiB reference memory)

After features/support/hooks.rb:291 0.846
After features/support/hooks.rb:75 0.000
24.016
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.949
And I prepare Tails for memory erasure tests 0.422
And I find very few patterns in the guest's memory 4.382

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.047
Then patterns cover at least 99% of the test FS size in the guest's memory 4.311

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

When I umount "/mnt" 0.575
Then I find very few patterns in the guest's memory 4.327

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:291 0.666
After features/support/hooks.rb:75 0.000
52.535
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 21.024
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.814
Then I find very few patterns in the guest's memory 4.793

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.334
Then patterns cover at least 86% of the test FS size in the guest's memory 3.257

Pattern coverage: 98.127% (125 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.967
Then I find very few patterns in the guest's memory 3.565

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

# read cache
When I mount the USB drive again 0.176
And I read the content of the test FS 0.577
Then patterns cover at least 99% of the test FS size in the guest's memory 3.735

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

When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory 4.412

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

After features/support/hooks.rb:291 0.695
After features/support/hooks.rb:75 0.000
1:2.496
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.826
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.705
Then I find very few patterns in the guest's memory 3.492

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.313
Then patterns cover at least 99% of the test FS size in the guest's memory 2.579

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

When I umount the USB drive 0.764
Then I find very few patterns in the guest's memory 3.254

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

# read cache
When I mount the USB drive again 4.416
And I read the content of the test FS 0.388
Then patterns cover at least 99% of the test FS size in the guest's memory 2.623

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

When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory 3.299

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

After features/support/hooks.rb:291 0.833
After features/support/hooks.rb:75 0.000
49.122
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.882
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the root filesystem 14.918
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.324
Then patterns cover at least 128 MiB in the guest's memory 2.745

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.830

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:291 3.494
After features/support/hooks.rb:75 0.000
6:34.101
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:51.360
And I prepare Tails for memory erasure tests 0.336
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.114
When I trigger shutdown 0.010
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.264

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

After features/support/hooks.rb:291 3.495
After features/support/hooks.rb:75 0.011