Project Number Date
test_Tails_ISO_stable 5215 23 Oct 2024, 22:29

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 11:46.281 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.
22.664
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.157
And I prepare Tails for memory erasure tests 0.458
When I start a process allocating 128 MiB of memory with a known pattern 2.397
Then patterns cover at least 128 MiB in the guest's memory 3.551

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

When I kill the allocating process 2.228
Then I find very few patterns in the guest's memory after 3 seconds 5.870

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 1.584
After features/support/hooks.rb:100 0.000
25.108
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.171
And I prepare Tails for memory erasure tests 0.442
And I find very few patterns in the guest's memory 2.844

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.066
Then patterns cover at least 99% of the test FS size in the guest's memory 3.515

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

When I umount "/mnt" 1.879
Then I find very few patterns in the guest's memory after 3 seconds 6.186

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 0.883
After features/support/hooks.rb:100 0.000
49.433
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.924
And I prepare Tails for memory erasure tests 0.568
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.279
Then I find very few patterns in the guest's memory 3.260

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.745
Then patterns cover at least 75% of the test FS size in the guest's memory 3.426

Pattern coverage: 85.422% (108 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.277
Then I find very few patterns in the guest's memory after 3 seconds 6.635

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 0.615
And I read the content of the test FS 0.670
Then patterns cover at least 99% of the test FS size in the guest's memory 4.089

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

When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 6.465

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.798
After features/support/hooks.rb:100 0.000
1:26.070
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.044
And I prepare Tails for memory erasure tests 0.420
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.937
Then I find very few patterns in the guest's memory 2.785

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

# write cache
When I fill the USB drive with a known pattern 2.615
Then patterns cover at least 99% of the test FS size in the guest's memory 3.183

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

When I umount the USB drive 2.814
Then I find very few patterns in the guest's memory after 3 seconds 5.773

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

# read cache
When I mount the USB drive again 5.289
And I read the content of the test FS 1.437
Then patterns cover at least 99% of the test FS size in the guest's memory 4.024

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

When I umount the USB drive 1.577
Then I find very few patterns in the guest's memory after 3 seconds 6.165

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

After features/support/hooks.rb:326 1.084
After features/support/hooks.rb:100 0.000
48.997
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.705
And I prepare Tails for memory erasure tests 0.555
When I fill a 128 MiB file with a known pattern on the root filesystem 14.208
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.973
Then patterns cover at least 128 MiB in the guest's memory 2.760

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

When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 20.775

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:326 3.724
After features/support/hooks.rb:100 0.000
7:54.007
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:8.645
And I prepare Tails for memory erasure tests 0.534
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.658
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.153

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

After features/support/hooks.rb:326 3.561
After features/support/hooks.rb:100 0.013