Project Number Date
test_Tails_ISO_devel 3681 04 Feb 2025, 05:27

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 11:35.585 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.
24.503
Before features/support/hooks.rb:269 0.006
Given I have started Tails from DVD without network and logged in 8.217
And I prepare Tails for memory erasure tests 0.532
When I start a process allocating 128 MiB of memory with a known pattern 2.325
Then patterns cover at least 128 MiB in the guest's memory 3.817

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

When I kill the allocating process 1.705
Then I find very few patterns in the guest's memory after 5 seconds 7.905

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

After features/support/hooks.rb:326 0.737
After features/support/hooks.rb:100 0.000
23.412
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.148
And I prepare Tails for memory erasure tests 0.447
And I find very few patterns in the guest's memory 2.740

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 2.101
Then patterns cover at least 99% of the test FS size in the guest's memory 3.339

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 6.013

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

After features/support/hooks.rb:326 0.753
After features/support/hooks.rb:100 0.000
49.375
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.157
And I prepare Tails for memory erasure tests 0.520
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.243
Then I find very few patterns in the guest's memory 2.542

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

# write cache
When I fill the USB drive with a known pattern 4.565
Then patterns cover at least 75% of the test FS size in the guest's memory 3.273

Pattern coverage: 88.346% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.858
Then I find very few patterns in the guest's memory after 3 seconds 5.751

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

# read cache
When I mount the USB drive again 0.961
And I read the content of the test FS 0.936
Then patterns cover at least 99% of the test FS size in the guest's memory 3.370

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

When I umount the USB drive 1.213
Then I find very few patterns in the guest's memory after 3 seconds 5.980

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

After features/support/hooks.rb:326 0.838
After features/support/hooks.rb:100 0.000
1:13.277
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.805
And I prepare Tails for memory erasure tests 0.486
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.486
Then I find very few patterns in the guest's memory 3.032

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.887
Then patterns cover at least 99% of the test FS size in the guest's memory 2.697

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

When I umount the USB drive 0.982
Then I find very few patterns in the guest's memory after 3 seconds 5.341

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 5.361
And I read the content of the test FS 0.428
Then patterns cover at least 99% of the test FS size in the guest's memory 2.593

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

When I umount the USB drive 0.734
Then I find very few patterns in the guest's memory after 3 seconds 5.438

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 1.034
After features/support/hooks.rb:100 0.000
52.275
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.376
And I prepare Tails for memory erasure tests 0.588
When I fill a 128 MiB file with a known pattern on the root filesystem 18.047
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.424
Then patterns cover at least 128 MiB in the guest's memory 2.968

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.853

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

After features/support/hooks.rb:326 3.570
After features/support/hooks.rb:100 0.000
7:52.740
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 7:4.308
And I prepare Tails for memory erasure tests 1.091
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.988
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.337

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

After features/support/hooks.rb:326 3.579
After features/support/hooks.rb:100 0.014