Project Number Date
test_Tails_ISO_devel 3317 11 Mar 2024, 18:35

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 9:52.699 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.
18.049
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.899
And I prepare Tails for memory erasure tests 0.376
When I start a process allocating 128 MiB of memory with a known pattern 1.181
Then patterns cover at least 128 MiB in the guest's memory 3.743

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

When I kill the allocating process 0.841
Then I find very few patterns in the guest's memory 4.006

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

After features/support/hooks.rb:291 1.077
After features/support/hooks.rb:75 0.000
21.351
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.143
And I prepare Tails for memory erasure tests 0.397
And I find very few patterns in the guest's memory 3.743

Pattern coverage: 0.000% (0 MiB out of 926 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.538
Then patterns cover at least 99% of the test FS size in the guest's memory 3.274

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

When I umount "/mnt" 0.387
Then I find very few patterns in the guest's memory 3.866

Pattern coverage: 0.000% (0 MiB out of 926 MiB reference memory)

After features/support/hooks.rb:291 0.924
After features/support/hooks.rb:75 0.000
42.686
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.965
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.928
Then I find very few patterns in the guest's memory 4.472

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.325
Then patterns cover at least 86% of the test FS size in the guest's memory 4.304

Pattern coverage: 94.180% (120 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.836
Then I find very few patterns in the guest's memory 4.270

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

# read cache
When I mount the USB drive again 0.543
And I read the content of the test FS 0.589
Then patterns cover at least 99% of the test FS size in the guest's memory 4.511

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

When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory 4.075

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

After features/support/hooks.rb:291 1.160
After features/support/hooks.rb:75 0.000
1:1.763
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.148
And I prepare Tails for memory erasure tests 0.398
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.375
Then I find very few patterns in the guest's memory 4.067

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.582
Then patterns cover at least 99% of the test FS size in the guest's memory 3.163

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

When I umount the USB drive 0.891
Then I find very few patterns in the guest's memory 3.687

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

# read cache
When I mount the USB drive again 4.006
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 3.346

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

When I umount the USB drive 0.747
Then I find very few patterns in the guest's memory 3.946

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

After features/support/hooks.rb:291 0.733
After features/support/hooks.rb:75 0.000
47.717
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.959
And I prepare Tails for memory erasure tests 0.460
When I fill a 128 MiB file with a known pattern on the root filesystem 12.794
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.829
Then patterns cover at least 128 MiB in the guest's memory 2.903

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

When I trigger shutdown 0.012
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.742

Pattern coverage: 0.000% (0 MiB out of 933 MiB reference memory)

After features/support/hooks.rb:291 3.597
After features/support/hooks.rb:75 0.000
6:41.131
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 5:53.283
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.275
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 2.161

Pattern coverage: 0.000% (0 MiB out of 937 MiB reference memory)

After features/support/hooks.rb:291 3.536
After features/support/hooks.rb:75 0.013