Project Number Date
test_Tails_ISO_stable 5270 16 Nov 2024, 08:41

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 11:19.964 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.
21.555
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.004
And I prepare Tails for memory erasure tests 0.404
When I start a process allocating 128 MiB of memory with a known pattern 2.480
Then patterns cover at least 128 MiB in the guest's memory 3.412

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

When I kill the allocating process 1.403
Then I find very few patterns in the guest's memory after 3 seconds 5.849

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.870
After features/support/hooks.rb:100 0.000
23.196
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.041
And I prepare Tails for memory erasure tests 0.431
And I find very few patterns in the guest's memory 2.798

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.909
Then patterns cover at least 99% of the test FS size in the guest's memory 3.067

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

When I umount "/mnt" 0.622
Then I find very few patterns in the guest's memory after 3 seconds 6.324

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 1.746
After features/support/hooks.rb:100 0.000
53.858
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.067
And I prepare Tails for memory erasure tests 0.611
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.091
Then I find very few patterns in the guest's memory 3.666

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.635
Then patterns cover at least 75% of the test FS size in the guest's memory 3.489

Pattern coverage: 87.299% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 4.097
Then I find very few patterns in the guest's memory after 3 seconds 5.951

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.508
And I read the content of the test FS 0.556
Then patterns cover at least 99% of the test FS size in the guest's memory 4.152

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

When I umount the USB drive 2.361
Then I find very few patterns in the guest's memory after 3 seconds 6.666

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.925
After features/support/hooks.rb:100 0.000
1:14.899
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.436
And I prepare Tails for memory erasure tests 0.708
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.056
Then I find very few patterns in the guest's memory 2.724

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.206
Then patterns cover at least 99% of the test FS size in the guest's memory 2.509

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

When I umount the USB drive 2.022
Then I find very few patterns in the guest's memory after 3 seconds 5.370

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 4.412
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 2.779

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

When I umount the USB drive 1.001
Then I find very few patterns in the guest's memory after 3 seconds 5.243

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 0.746
After features/support/hooks.rb:100 0.000
47.592
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.090
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the root filesystem 13.753
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.995
Then patterns cover at least 128 MiB in the guest's memory 2.520

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 20.784

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 3.535
After features/support/hooks.rb:100 0.000
7:38.863
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 6:54.008
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.071
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.362

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

After features/support/hooks.rb:326 3.528
After features/support/hooks.rb:100 0.012