Project Number Date
test_Tails_ISO_stable 5415 24 Jan 2025, 02:16

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 12:12.327 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.
27.629
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.478
And I prepare Tails for memory erasure tests 0.453
When I start a process allocating 128 MiB of memory with a known pattern 5.269
Then patterns cover at least 128 MiB in the guest's memory 4.670

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

When I kill the allocating process 0.259
Then I find very few patterns in the guest's memory after 5 seconds 8.497

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

After features/support/hooks.rb:326 1.354
After features/support/hooks.rb:100 0.000
26.994
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.274
And I prepare Tails for memory erasure tests 0.465
And I find very few patterns in the guest's memory 3.724

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.380
Then patterns cover at least 99% of the test FS size in the guest's memory 4.135

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

When I umount "/mnt" 1.088
Then I find very few patterns in the guest's memory after 3 seconds 6.926

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

After features/support/hooks.rb:326 1.333
After features/support/hooks.rb:100 0.000
56.450
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.343
And I prepare Tails for memory erasure tests 0.865
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.230
Then I find very few patterns in the guest's memory 3.761

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.552
Then patterns cover at least 75% of the test FS size in the guest's memory 4.536

Pattern coverage: 88.520% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.061
Then I find very few patterns in the guest's memory after 3 seconds 6.970

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.417
And I read the content of the test FS 2.292
Then patterns cover at least 99% of the test FS size in the guest's memory 4.040

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

When I umount the USB drive 0.810
Then I find very few patterns in the guest's memory after 3 seconds 6.568

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 1.270
After features/support/hooks.rb:100 0.000
1:24.102
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.217
And I prepare Tails for memory erasure tests 0.481
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.683
Then I find very few patterns in the guest's memory 3.062

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

# write cache
When I fill the USB drive with a known pattern 2.257
Then patterns cover at least 99% of the test FS size in the guest's memory 3.433

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

When I umount the USB drive 1.113
Then I find very few patterns in the guest's memory after 3 seconds 6.130

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

# read cache
When I mount the USB drive again 6.987
And I read the content of the test FS 0.456
Then patterns cover at least 99% of the test FS size in the guest's memory 3.571

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

When I umount the USB drive 8.159
Then I find very few patterns in the guest's memory after 3 seconds 6.545

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

After features/support/hooks.rb:326 0.887
After features/support/hooks.rb:100 0.000
49.398
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.078
And I prepare Tails for memory erasure tests 0.514
When I fill a 128 MiB file with a known pattern on the root filesystem 15.553
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.551
Then patterns cover at least 128 MiB in the guest's memory 2.900

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

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.783

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 3.527
After features/support/hooks.rb:100 0.000
8:7.752
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 7:22.205
And I prepare Tails for memory erasure tests 1.053
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.255
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.226

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

After features/support/hooks.rb:326 3.718
After features/support/hooks.rb:100 0.014