Project Number Date
test_Tails_ISO_stable 4702 07 Mar 2024, 12:39

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 10:16.755 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.
19.854
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 9.077
And I prepare Tails for memory erasure tests 0.440
When I start a process allocating 128 MiB of memory with a known pattern 2.312
Then patterns cover at least 128 MiB in the guest's memory 3.456

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

When I kill the allocating process 0.703
Then I find very few patterns in the guest's memory 3.863

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:291 1.232
After features/support/hooks.rb:75 0.000
22.315
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.194
And I prepare Tails for memory erasure tests 0.427
And I find very few patterns in the guest's memory 3.753

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.826
Then patterns cover at least 99% of the test FS size in the guest's memory 3.249

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

When I umount "/mnt" 0.416
Then I find very few patterns in the guest's memory 4.447

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

After features/support/hooks.rb:291 3.276
After features/support/hooks.rb:75 0.000
55.888
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.150
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.830
Then I find very few patterns in the guest's memory 4.720

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.523
Then patterns cover at least 86% of the test FS size in the guest's memory 4.856

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.090
Then I find very few patterns in the guest's memory 8.061

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

# read cache
When I mount the USB drive again 0.569
And I read the content of the test FS 0.513
Then patterns cover at least 99% of the test FS size in the guest's memory 9.009

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.553
Then I find very few patterns in the guest's memory 8.617

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

After features/support/hooks.rb:291 1.997
After features/support/hooks.rb:75 0.000
1:8.769
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.918
And I prepare Tails for memory erasure tests 0.487
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.516
Then I find very few patterns in the guest's memory 3.755

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.834
Then patterns cover at least 99% of the test FS size in the guest's memory 3.156

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

When I umount the USB drive 1.219
Then I find very few patterns in the guest's memory 4.139

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# read cache
When I mount the USB drive again 4.261
And I read the content of the test FS 0.367
Then patterns cover at least 99% of the test FS size in the guest's memory 3.386

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.815
Then I find very few patterns in the guest's memory 3.910

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

After features/support/hooks.rb:291 0.628
After features/support/hooks.rb:75 0.000
49.220
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.439
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the root filesystem 13.832
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.561
Then patterns cover at least 128 MiB in the guest's memory 3.049

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.900

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

After features/support/hooks.rb:291 3.728
After features/support/hooks.rb:75 0.000
6:40.706
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:56.649
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.195
When I trigger shutdown 0.012
And I wait 20 seconds 20.012

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.391

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

After features/support/hooks.rb:291 3.536
After features/support/hooks.rb:75 0.033