Project Number Date
test_Tails_ISO_21569-fix-gnome-software-notifications 2 02 Oct 2026, 18:32

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 7:24.476 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.
20.414
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.148
And I prepare Tails for memory erasure tests 0.357
When I start a process allocating 128 MiB of memory with a known pattern 2.189
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.413

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.728
Then I find very few patterns in the guest's memory after 5 seconds 7.576

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

After features/support/hooks.rb:339 0.725
After features/support/hooks.rb:108 0.000
19.674
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.217
And I prepare Tails for memory erasure tests 0.302
And I find very few patterns in the guest's memory 2.671

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.622
Then patterns cover at least 99% of the test FS size in the guest's memory 2.831

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

When I umount "/mnt" 0.413
Then I find very few patterns in the guest's memory after 3 seconds 5.616

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 1.006
After features/support/hooks.rb:108 0.000
37.181
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.181
And I prepare Tails for memory erasure tests 0.288
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.307
Then I find very few patterns in the guest's memory 2.779

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.683
Then patterns cover at least 75% of the test FS size in the guest's memory 3.020

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

When I umount the USB drive 0.704
Then I find very few patterns in the guest's memory after 3 seconds 5.987

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# read cache
When I mount the USB drive again 0.163
And I read the content of the test FS 0.570
Then patterns cover at least 99% of the test FS size in the guest's memory 3.167

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

When I umount the USB drive 0.477
Then I find very few patterns in the guest's memory after 3 seconds 5.849

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

After features/support/hooks.rb:339 1.008
After features/support/hooks.rb:108 0.000
1:14.183
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.253
And I prepare Tails for memory erasure tests 0.262
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.970
Then I find very few patterns in the guest's memory 4.417

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.221
Then patterns cover at least 99% of the test FS size in the guest's memory 5.517

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

When I umount the USB drive 0.511
Then I find very few patterns in the guest's memory after 3 seconds 8.498

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

# read cache
When I mount the USB drive again 3.782
And I read the content of the test FS 0.359
Then patterns cover at least 99% of the test FS size in the guest's memory 5.630

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

When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 8.349

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

After features/support/hooks.rb:339 1.205
After features/support/hooks.rb:108 0.000
45.184
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.213
And I prepare Tails for memory erasure tests 0.272
When I fill a 128 MiB file with a known pattern on the root filesystem 13.942
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.656
Then patterns cover at least 128 MiB in the guest's memory 2.365

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.727

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 3.349
After features/support/hooks.rb:108 0.000
4:7.838
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.741
And I prepare Tails for memory erasure tests 0.227
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.768
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.096

Pattern coverage: 0.000% (0 MiB out of 1383 MiB reference memory)

After features/support/hooks.rb:339 3.842
After features/support/hooks.rb:108 0.009