Project Number Date
test_Tails_ISO_20522-ocr-more 24 02 Jan 2025, 05:05

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:15.608 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.
20.307
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.273
And I prepare Tails for memory erasure tests 0.428
When I start a process allocating 128 MiB of memory with a known pattern 1.278
Then patterns cover at least 128 MiB in the guest's memory 3.633

Pattern coverage: 100.000% (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 after 3 seconds 6.311

Pattern coverage: 0.000% (0 MiB out of 677 MiB reference memory)

After features/support/hooks.rb:326 0.742
After features/support/hooks.rb:100 0.000
25.893
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.006
And I prepare Tails for memory erasure tests 0.398
And I find very few patterns in the guest's memory 3.899

Pattern coverage: 0.000% (0 MiB out of 676 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.764
Then patterns cover at least 99% of the test FS size in the guest's memory 4.232

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

When I umount "/mnt" 0.330
Then I find very few patterns in the guest's memory after 3 seconds 7.259

Pattern coverage: 0.000% (0 MiB out of 676 MiB reference memory)

After features/support/hooks.rb:326 1.345
After features/support/hooks.rb:100 0.000
46.968
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.254
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.248
Then I find very few patterns in the guest's memory 3.771

Pattern coverage: 0.000% (0 MiB out of 673 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.560
Then patterns cover at least 75% of the test FS size in the guest's memory 4.204

Pattern coverage: 79.281% (101 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.472
Then I find very few patterns in the guest's memory after 3 seconds 5.899

Pattern coverage: 0.000% (0 MiB out of 673 MiB reference memory)

# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.495
Then patterns cover at least 99% of the test FS size in the guest's memory 3.296

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

When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory after 3 seconds 5.647

Pattern coverage: 0.000% (0 MiB out of 673 MiB reference memory)

After features/support/hooks.rb:326 0.908
After features/support/hooks.rb:100 0.000
1:18.723
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.573
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.589
Then I find very few patterns in the guest's memory 3.000

Pattern coverage: 0.000% (0 MiB out of 669 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.083
Then patterns cover at least 99% of the test FS size in the guest's memory 4.720

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

When I umount the USB drive 0.867
Then I find very few patterns in the guest's memory after 3 seconds 6.020

Pattern coverage: 0.000% (0 MiB out of 669 MiB reference memory)

# read cache
When I mount the USB drive again 5.111
And I read the content of the test FS 0.445
Then patterns cover at least 99% of the test FS size in the guest's memory 3.407

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

When I umount the USB drive 0.531
Then I find very few patterns in the guest's memory after 3 seconds 5.937

Pattern coverage: 0.000% (0 MiB out of 669 MiB reference memory)

After features/support/hooks.rb:326 1.201
After features/support/hooks.rb:100 0.000
53.167
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.160
And I prepare Tails for memory erasure tests 0.456
When I fill a 128 MiB file with a known pattern on the root filesystem 20.060
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.047
Then patterns cover at least 128 MiB in the guest's memory 2.656

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.772

Pattern coverage: 0.000% (0 MiB out of 673 MiB reference memory)

After features/support/hooks.rb:326 3.499
After features/support/hooks.rb:100 0.000
7:30.548
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:47.723
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.185
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.198

Pattern coverage: 0.000% (0 MiB out of 752 MiB reference memory)

After features/support/hooks.rb:326 3.480
After features/support/hooks.rb:100 0.044