Project Number Date
test_Tails_ISO_stable 4898 18 Jun 2024, 13:29

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:53.141 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.
20.351
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.974
And I prepare Tails for memory erasure tests 0.504
When I start a process allocating 128 MiB of memory with a known pattern 2.377
Then patterns cover at least 128 MiB in the guest's memory 3.509

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

When I kill the allocating process 1.609
Then I find very few patterns in the guest's memory 4.376

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

After features/support/hooks.rb:320 1.143
After features/support/hooks.rb:100 0.000
23.748
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.902
And I prepare Tails for memory erasure tests 0.444
And I find very few patterns in the guest's memory 3.854

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.412
Then patterns cover at least 99% of the test FS size in the guest's memory 3.229

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

When I umount "/mnt" 1.250
Then I find very few patterns in the guest's memory 3.654

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

After features/support/hooks.rb:320 1.342
After features/support/hooks.rb:100 0.000
48.575
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.548
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.213
Then I find very few patterns in the guest's memory 4.272

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.020
Then patterns cover at least 86% of the test FS size in the guest's memory 4.223

Pattern coverage: 89.261% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.855
Then I find very few patterns in the guest's memory 4.604

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 0.242
And I read the content of the test FS 0.999
Then patterns cover at least 99% of the test FS size in the guest's memory 3.944

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

When I umount the USB drive 0.740
Then I find very few patterns in the guest's memory 4.468

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:320 1.219
After features/support/hooks.rb:100 0.000
1:17.132
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.094
And I prepare Tails for memory erasure tests 0.573
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.042
Then I find very few patterns in the guest's memory 3.549

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

# write cache
When I fill the USB drive with a known pattern 1.931
Then patterns cover at least 99% of the test FS size in the guest's memory 2.796

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

When I umount the USB drive 1.665
Then I find very few patterns in the guest's memory 3.576

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

# read cache
When I mount the USB drive again 6.712
And I read the content of the test FS 0.465
Then patterns cover at least 99% of the test FS size in the guest's memory 3.480

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

When I umount the USB drive 3.010
Then I find very few patterns in the guest's memory 4.231

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

After features/support/hooks.rb:320 1.082
After features/support/hooks.rb:100 0.000
53.050
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.645
And I prepare Tails for memory erasure tests 0.468
When I fill a 128 MiB file with a known pattern on the root filesystem 17.323
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.280
Then patterns cover at least 128 MiB in the guest's memory 2.543

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.756

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:320 3.494
After features/support/hooks.rb:100 0.000
8:10.283
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 7:22.560
And I prepare Tails for memory erasure tests 0.503
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.004
When I trigger shutdown 0.011
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.185

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:320 3.514
After features/support/hooks.rb:100 0.012