Project Number Date
test_Tails_ISO_20860-unsafe-browser-desktop-portals 9 13 May 2025, 21:47

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 11:12.873 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.
24.334
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.022
And I prepare Tails for memory erasure tests 0.628
When I start a process allocating 128 MiB of memory with a known pattern 2.445
Then patterns cover at least 128 MiB in the guest's memory 3.702

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

When I kill the allocating process 0.873
Then I find very few patterns in the guest's memory after 5 seconds 8.662

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:330 1.881
After features/support/hooks.rb:100 0.000
24.300
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.062
And I prepare Tails for memory erasure tests 0.617
And I find very few patterns in the guest's memory 3.265

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 1.950
Then patterns cover at least 99% of the test FS size in the guest's memory 3.591

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

When I umount "/mnt" 0.582
Then I find very few patterns in the guest's memory after 3 seconds 6.229

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

After features/support/hooks.rb:330 1.245
After features/support/hooks.rb:100 0.000
48.192
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.116
And I prepare Tails for memory erasure tests 0.563
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.158
Then I find very few patterns in the guest's memory 3.568

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.501
Then patterns cover at least 75% of the test FS size in the guest's memory 4.579

Pattern coverage: 90.118% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.022
Then I find very few patterns in the guest's memory after 3 seconds 6.299

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# read cache
When I mount the USB drive again 0.310
And I read the content of the test FS 0.469
Then patterns cover at least 99% of the test FS size in the guest's memory 3.584

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

When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 6.508

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:330 1.852
After features/support/hooks.rb:100 0.000
1:17.870
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.293
And I prepare Tails for memory erasure tests 0.546
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.107
Then I find very few patterns in the guest's memory 2.912

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

# write cache
When I fill the USB drive with a known pattern 1.774
Then patterns cover at least 99% of the test FS size in the guest's memory 3.231

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

When I umount the USB drive 0.665
Then I find very few patterns in the guest's memory after 3 seconds 6.248

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

# read cache
When I mount the USB drive again 4.653
And I read the content of the test FS 0.445
Then patterns cover at least 99% of the test FS size in the guest's memory 3.359

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

When I umount the USB drive 0.718
Then I find very few patterns in the guest's memory after 3 seconds 5.912

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

After features/support/hooks.rb:330 1.015
After features/support/hooks.rb:100 0.000
50.298
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.842
And I prepare Tails for memory erasure tests 0.426
When I fill a 128 MiB file with a known pattern on the root filesystem 15.364
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.000
Then patterns cover at least 128 MiB in the guest's memory 2.807

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 20.845

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:330 3.531
After features/support/hooks.rb:100 0.000
7:27.877
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:43.356
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.698
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.401

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

After features/support/hooks.rb:330 3.570
After features/support/hooks.rb:100 0.038