Project Number Date
test_Tails_ISO_21565-flatpak-safe 40 19 Sep 2026, 03:19

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 7:12.828 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.
19.235
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 6.133
And I prepare Tails for memory erasure tests 0.285
When I start a process allocating 128 MiB of memory with a known pattern 2.168
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.822

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

When I kill the allocating process 0.232
Then I find very few patterns in the guest's memory after 5 seconds 7.591

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.979
After features/support/hooks.rb:108 0.000
19.839
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 6.187
And I prepare Tails for memory erasure tests 0.305
And I find very few patterns in the guest's memory 3.032

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.946

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

When I umount "/mnt" 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.629

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.918
After features/support/hooks.rb:108 0.000
44.974
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 6.138
And I prepare Tails for memory erasure tests 0.275
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.448
Then I find very few patterns in the guest's memory 4.148

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.531
Then patterns cover at least 75% of the test FS size in the guest's memory 5.378

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

When I umount the USB drive 0.654
Then I find very few patterns in the guest's memory after 3 seconds 7.014

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# read cache
When I mount the USB drive again 0.226
And I read the content of the test FS 0.522
Then patterns cover at least 99% of the test FS size in the guest's memory 5.131

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

When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 7.051

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 0.758
After features/support/hooks.rb:108 0.000
1:0.911
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 6.386
And I prepare Tails for memory erasure tests 0.323
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.196
Then I find very few patterns in the guest's memory 3.017

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 0.986
Then patterns cover at least 99% of the test FS size in the guest's memory 2.992

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

When I umount the USB drive 0.463
Then I find very few patterns in the guest's memory after 3 seconds 5.679

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

# read cache
When I mount the USB drive again 4.017
And I read the content of the test FS 0.340
Then patterns cover at least 99% of the test FS size in the guest's memory 2.566

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

When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 5.498

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

After features/support/hooks.rb:339 0.921
After features/support/hooks.rb:108 0.000
44.133
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 6.254
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the root filesystem 12.806
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.516
Then patterns cover at least 128 MiB in the guest's memory 2.395

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 20.846

Pattern coverage: 0.000% (0 MiB out of 1391 MiB reference memory)

After features/support/hooks.rb:339 3.412
After features/support/hooks.rb:108 0.000
4:3.734
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 3:32.155
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.186
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.088

Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)

After features/support/hooks.rb:339 3.395
After features/support/hooks.rb:108 0.008