Project Number Date
test_Tails_ISO_stable 4649 01 Feb 2024, 12:19

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 15:16.436 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.
16.589
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.596
And I prepare Tails for memory erasure tests 0.466
When I start a process allocating 128 MiB of memory with a known pattern 1.221
Then patterns cover at least 128 MiB in the guest's memory 3.329

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.380
Then I find very few patterns in the guest's memory 3.594

Pattern coverage: 0.000% (0 MiB out of 1204 MiB reference memory)

After features/support/hooks.rb:291 0.716
After features/support/hooks.rb:75 0.000
1:0.522
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.693
And I prepare Tails for memory erasure tests 0.461
And I find very few patterns in the guest's memory 4.528

Pattern coverage: 0.000% (0 MiB out of 1198 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 40.342
Then patterns cover at least 99% of the test FS size in the guest's memory 3.444

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

When I umount "/mnt" 0.273
Then I find very few patterns in the guest's memory 3.778

Pattern coverage: 0.000% (0 MiB out of 1198 MiB reference memory)

After features/support/hooks.rb:291 1.132
After features/support/hooks.rb:75 0.000
3:40.609
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.746
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.260
Then I find very few patterns in the guest's memory 6.021

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:58.069
Then patterns cover at least 86% of the test FS size in the guest's memory 3.315

Pattern coverage: 92.008% (114 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory 4.604

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 2.361
Then patterns cover at least 99% of the test FS size in the guest's memory 3.633

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.926
Then I find very few patterns in the guest's memory 4.425

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

After features/support/hooks.rb:291 0.797
After features/support/hooks.rb:75 0.000
2:36.312
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.176
And I prepare Tails for memory erasure tests 0.501
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.564
Then I find very few patterns in the guest's memory 3.152

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:38.758
Then patterns cover at least 99% of the test FS size in the guest's memory 3.466

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.591
Then I find very few patterns in the guest's memory 3.819

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# read cache
When I mount the USB drive again 3.250
And I read the content of the test FS 3.340
Then patterns cover at least 99% of the test FS size in the guest's memory 3.137

Pattern coverage: 108.661% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.837
Then I find very few patterns in the guest's memory 3.713

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

After features/support/hooks.rb:291 1.033
After features/support/hooks.rb:75 0.000
49.299
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.906
And I prepare Tails for memory erasure tests 0.462
When I fill a 128 MiB file with a known pattern on the root filesystem 13.529
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.552
Then patterns cover at least 128 MiB in the guest's memory 3.314

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

When I trigger shutdown 0.593
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.921

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

After features/support/hooks.rb:291 3.433
After features/support/hooks.rb:75 0.000
6:53.102
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:7.972
And I prepare Tails for memory erasure tests 0.530
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.061
When I trigger shutdown 0.389
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.129

Pattern coverage: 0.000% (0 MiB out of 1159 MiB reference memory)

After features/support/hooks.rb:291 3.462
After features/support/hooks.rb:75 0.010