Project Number Date
test_Tails_ISO_devel 3401 27 May 2024, 13:25

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 11:40.916 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.
23.083
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.508
And I prepare Tails for memory erasure tests 0.683
When I start a process allocating 128 MiB of memory with a known pattern 3.509
Then patterns cover at least 128 MiB in the guest's memory 4.905

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

When I kill the allocating process 1.432
Then I find very few patterns in the guest's memory 4.043

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:305 1.710
After features/support/hooks.rb:89 0.000
25.502
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.581
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 4.996

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.952
Then patterns cover at least 99% of the test FS size in the guest's memory 4.275

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

When I umount "/mnt" 0.697
Then I find very few patterns in the guest's memory 4.580

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:305 0.932
After features/support/hooks.rb:89 0.000
53.938
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.303
And I prepare Tails for memory erasure tests 0.544
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.206
Then I find very few patterns in the guest's memory 5.379

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.882
Then patterns cover at least 86% of the test FS size in the guest's memory 5.861

Pattern coverage: 91.676% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.369
Then I find very few patterns in the guest's memory 4.623

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 0.321
And I read the content of the test FS 0.635
Then patterns cover at least 99% of the test FS size in the guest's memory 5.010

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

When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory 7.255

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:305 0.843
After features/support/hooks.rb:89 0.001
1:19.049
Before features/support/hooks.rb:259 0.005
Given I have started Tails from DVD without network and logged in 9.442
And I prepare Tails for memory erasure tests 0.639
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.052
Then I find very few patterns in the guest's memory 4.106

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

# write cache
When I fill the USB drive with a known pattern 4.535
Then patterns cover at least 99% of the test FS size in the guest's memory 4.028

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

When I umount the USB drive 0.851
Then I find very few patterns in the guest's memory 4.249

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

# read cache
When I mount the USB drive again 6.038
And I read the content of the test FS 0.642
Then patterns cover at least 99% of the test FS size in the guest's memory 3.483

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

When I umount the USB drive 2.162
Then I find very few patterns in the guest's memory 3.814

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

After features/support/hooks.rb:305 0.987
After features/support/hooks.rb:89 0.000
57.246
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.227
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 18.049
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.933
Then patterns cover at least 128 MiB in the guest's memory 5.511

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.936

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

After features/support/hooks.rb:305 3.550
After features/support/hooks.rb:89 0.000
7:42.095
Before features/support/hooks.rb:259 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:57.782
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.531
When I trigger shutdown 0.010
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.325

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

After features/support/hooks.rb:305 3.502
After features/support/hooks.rb:89 0.015