Project Number Date
test_Tails_ISO_devel 3404 29 May 2024, 13:26

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 12:19.217 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.
21.034
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.095
And I prepare Tails for memory erasure tests 0.850
When I start a process allocating 128 MiB of memory with a known pattern 2.389
Then patterns cover at least 128 MiB in the guest's memory 4.102

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

When I kill the allocating process 0.248
Then I find very few patterns in the guest's memory 4.347

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

After features/support/hooks.rb:305 0.710
After features/support/hooks.rb:89 0.000
25.325
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.321
And I prepare Tails for memory erasure tests 0.626
And I find very few patterns in the guest's memory 4.563

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.360
Then patterns cover at least 99% of the test FS size in the guest's memory 4.223

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

When I umount "/mnt" 0.481
Then I find very few patterns in the guest's memory 4.750

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:305 1.491
After features/support/hooks.rb:89 0.000
55.063
Before features/support/hooks.rb:259 0.005
Given I have started Tails from DVD without network and logged in 8.440
And I prepare Tails for memory erasure tests 0.902
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.302
Then I find very few patterns in the guest's memory 5.551

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.158
Then patterns cover at least 86% of the test FS size in the guest's memory 4.817

Pattern coverage: 86.475% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.965
Then I find very few patterns in the guest's memory 5.510

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 0.360
And I read the content of the test FS 2.419
Then patterns cover at least 99% of the test FS size in the guest's memory 4.318

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

When I umount the USB drive 0.634
Then I find very few patterns in the guest's memory 6.682

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:305 0.819
After features/support/hooks.rb:89 0.000
1:32.930
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.777
And I prepare Tails for memory erasure tests 0.578
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.020
Then I find very few patterns in the guest's memory 6.939

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

# write cache
When I fill the USB drive with a known pattern 6.719
Then patterns cover at least 99% of the test FS size in the guest's memory 4.787

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

When I umount the USB drive 1.007
Then I find very few patterns in the guest's memory 4.791

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

# read cache
When I mount the USB drive again 10.223
And I read the content of the test FS 0.515
Then patterns cover at least 99% of the test FS size in the guest's memory 5.053

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

When I umount the USB drive 1.550
Then I find very few patterns in the guest's memory 4.964

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

After features/support/hooks.rb:305 1.180
After features/support/hooks.rb:89 0.000
59.290
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 10.785
And I prepare Tails for memory erasure tests 0.728
When I fill a 128 MiB file with a known pattern on the root filesystem 20.231
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.914
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 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.395

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:305 3.536
After features/support/hooks.rb:89 0.000
8:5.572
Before features/support/hooks.rb:259 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:21.569
And I prepare Tails for memory erasure tests 0.441
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.056
When I trigger shutdown 0.012
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.477

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

After features/support/hooks.rb:305 3.492
After features/support/hooks.rb:89 0.010