Project Number Date
test_Tails_ISO_stable 5144 05 Oct 2024, 08:43

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 11:28.104 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.
23.161
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.270
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 2.361
Then patterns cover at least 128 MiB in the guest's memory 4.496

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

When I kill the allocating process 1.642
Then I find very few patterns in the guest's memory after 3 seconds 5.979

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

After features/support/hooks.rb:326 0.789
After features/support/hooks.rb:100 0.000
27.201
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.548
And I prepare Tails for memory erasure tests 0.395
And I find very few patterns in the guest's memory 2.853

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.693
Then patterns cover at least 99% of the test FS size in the guest's memory 5.219

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

When I umount "/mnt" 0.846
Then I find very few patterns in the guest's memory after 3 seconds 6.644

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

After features/support/hooks.rb:326 0.769
After features/support/hooks.rb:100 0.000
57.378
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.193
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.221
Then I find very few patterns in the guest's memory 3.348

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

# write cache
When I fill the USB drive with a known pattern 7.270
Then patterns cover at least 75% of the test FS size in the guest's memory 6.000

Pattern coverage: 86.270% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.755
Then I find very few patterns in the guest's memory after 3 seconds 7.221

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

# read cache
When I mount the USB drive again 0.285
And I read the content of the test FS 0.825
Then patterns cover at least 99% of the test FS size in the guest's memory 4.214

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

When I umount the USB drive 1.116
Then I find very few patterns in the guest's memory after 3 seconds 7.492

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

After features/support/hooks.rb:326 1.473
After features/support/hooks.rb:100 0.001
1:20.634
Before features/support/hooks.rb:269 0.011
Given I have started Tails from DVD without network and logged in 10.622
And I prepare Tails for memory erasure tests 0.394
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.322
Then I find very few patterns in the guest's memory 2.705

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

# write cache
When I fill the USB drive with a known pattern 2.080
Then patterns cover at least 99% of the test FS size in the guest's memory 2.853

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

When I umount the USB drive 1.047
Then I find very few patterns in the guest's memory after 3 seconds 5.502

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

# read cache
When I mount the USB drive again 4.823
And I read the content of the test FS 0.479
Then patterns cover at least 99% of the test FS size in the guest's memory 3.489

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

When I umount the USB drive 1.369
Then I find very few patterns in the guest's memory after 3 seconds 5.944

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

After features/support/hooks.rb:326 0.768
After features/support/hooks.rb:100 0.000
52.928
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.017
And I prepare Tails for memory erasure tests 0.460
When I fill a 128 MiB file with a known pattern on the root filesystem 19.251
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.894
Then patterns cover at least 128 MiB in the guest's memory 2.601

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.689

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

After features/support/hooks.rb:326 3.503
After features/support/hooks.rb:100 0.000
7:26.800
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 6:40.809
And I prepare Tails for memory erasure tests 0.459
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.351
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.167

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 3.531
After features/support/hooks.rb:100 0.012