Project Number Date
test_Tails_ISO_devel 3619 22 Dec 2024, 12:39

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 11:56.678 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.
21.733
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.505
And I prepare Tails for memory erasure tests 0.451
When I start a process allocating 128 MiB of memory with a known pattern 2.495
Then patterns cover at least 128 MiB in the guest's memory 3.226

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

When I kill the allocating process 1.444
Then I find very few patterns in the guest's memory after 3 seconds 5.610

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 1.770
After features/support/hooks.rb:100 0.000
24.117
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.143
And I prepare Tails for memory erasure tests 0.547
And I find very few patterns in the guest's memory 2.883

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.949
Then patterns cover at least 99% of the test FS size in the guest's memory 3.548

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

When I umount "/mnt" 0.716
Then I find very few patterns in the guest's memory after 3 seconds 6.329

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 0.996
After features/support/hooks.rb:100 0.000
52.292
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.159
And I prepare Tails for memory erasure tests 0.568
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.281
Then I find very few patterns in the guest's memory 3.940

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.443
Then patterns cover at least 75% of the test FS size in the guest's memory 4.253

Pattern coverage: 89.190% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.662
Then I find very few patterns in the guest's memory after 3 seconds 6.820

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 0.439
And I read the content of the test FS 0.511
Then patterns cover at least 99% of the test FS size in the guest's memory 4.016

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

When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 6.594

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 0.817
After features/support/hooks.rb:100 0.000
1:12.152
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.406
And I prepare Tails for memory erasure tests 0.562
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.466
Then I find very few patterns in the guest's memory 2.402

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

# write cache
When I fill the USB drive with a known pattern 1.939
Then patterns cover at least 99% of the test FS size in the guest's memory 3.084

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

When I umount the USB drive 0.997
Then I find very few patterns in the guest's memory after 3 seconds 5.609

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

# read cache
When I mount the USB drive again 4.488
And I read the content of the test FS 0.550
Then patterns cover at least 99% of the test FS size in the guest's memory 2.842

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.822
Then I find very few patterns in the guest's memory after 3 seconds 5.979

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

After features/support/hooks.rb:326 0.933
After features/support/hooks.rb:100 0.000
51.330
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.500
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the root filesystem 16.094
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.755
Then patterns cover at least 128 MiB in the guest's memory 2.750

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.734

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

After features/support/hooks.rb:326 3.556
After features/support/hooks.rb:100 0.000
8:15.053
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 7:30.570
And I prepare Tails for memory erasure tests 0.494
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.681
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.294

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 3.752
After features/support/hooks.rb:100 0.013