Project Number Date
test_Tails_ISO_stable 4701 06 Mar 2024, 12:14

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 9:38.197 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.
18.523
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.584
And I prepare Tails for memory erasure tests 0.443
When I start a process allocating 128 MiB of memory with a known pattern 1.175
Then patterns cover at least 128 MiB in the guest's memory 3.797

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

When I kill the allocating process 0.835
Then I find very few patterns in the guest's memory 3.687

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

After features/support/hooks.rb:291 1.233
After features/support/hooks.rb:75 0.000
21.672
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.112
And I prepare Tails for memory erasure tests 0.364
And I find very few patterns in the guest's memory 3.975

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.517
Then patterns cover at least 99% of the test FS size in the guest's memory 3.351

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

When I umount "/mnt" 0.312
Then I find very few patterns in the guest's memory 4.039

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

After features/support/hooks.rb:291 1.221
After features/support/hooks.rb:75 0.000
39.014
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.978
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.943
Then I find very few patterns in the guest's memory 4.053

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

# write cache
When I fill the USB drive with a known pattern 2.487
Then patterns cover at least 86% of the test FS size in the guest's memory 3.723

Pattern coverage: 94.808% (120 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.165
Then I find very few patterns in the guest's memory 3.649

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

# read cache
When I mount the USB drive again 0.219
And I read the content of the test FS 0.535
Then patterns cover at least 99% of the test FS size in the guest's memory 3.416

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

When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory 3.842

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

After features/support/hooks.rb:291 1.163
After features/support/hooks.rb:75 0.000
1:2.626
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.994
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.760
Then I find very few patterns in the guest's memory 3.593

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.199
Then patterns cover at least 99% of the test FS size in the guest's memory 2.559

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

When I umount the USB drive 0.862
Then I find very few patterns in the guest's memory 3.402

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# read cache
When I mount the USB drive again 4.309
And I read the content of the test FS 0.640
Then patterns cover at least 99% of the test FS size in the guest's memory 3.276

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.487
Then I find very few patterns in the guest's memory 3.166

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:291 0.962
After features/support/hooks.rb:75 0.000
49.779
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.952
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the root filesystem 15.673
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.393
Then patterns cover at least 128 MiB in the guest's memory 2.586

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.775

Pattern coverage: 0.000% (0 MiB out of 934 MiB reference memory)

After features/support/hooks.rb:291 3.507
After features/support/hooks.rb:75 0.000
6:26.580
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 5:42.387
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.608
When I trigger shutdown 0.010
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.145

Pattern coverage: 0.000% (0 MiB out of 955 MiB reference memory)

After features/support/hooks.rb:291 3.490
After features/support/hooks.rb:75 0.012