Project Number Date
test_Tails_ISO_21565-flatpak-safe 53 27 Sep 2026, 03:39

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 7:15.342 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.
19.932
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.342
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 2.202
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.895

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

When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 7.892

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.838
After features/support/hooks.rb:108 0.000
19.674
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.161
And I prepare Tails for memory erasure tests 0.294
And I find very few patterns in the guest's memory 2.660

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.411
Then patterns cover at least 99% of the test FS size in the guest's memory 2.848

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

When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 5.924

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.543
After features/support/hooks.rb:108 0.000
36.599
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.261
And I prepare Tails for memory erasure tests 0.312
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.158
Then I find very few patterns in the guest's memory 2.781

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

# write cache
When I fill the USB drive with a known pattern 2.705
Then patterns cover at least 75% of the test FS size in the guest's memory 3.308

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

When I umount the USB drive 0.722
Then I find very few patterns in the guest's memory after 3 seconds 5.639

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

# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 2.859

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

When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 5.677

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

After features/support/hooks.rb:339 0.590
After features/support/hooks.rb:108 0.000
1:0.411
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.275
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.868
Then I find very few patterns in the guest's memory 2.542

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.207
Then patterns cover at least 99% of the test FS size in the guest's memory 3.056

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

When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 5.585

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

# read cache
When I mount the USB drive again 4.152
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 2.603

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

When I umount the USB drive 0.457
Then I find very few patterns in the guest's memory after 3 seconds 5.485

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

After features/support/hooks.rb:339 0.864
After features/support/hooks.rb:108 0.000
44.555
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.216
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the root filesystem 13.746
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.400
Then patterns cover at least 128 MiB in the guest's memory 2.120

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

When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 20.713

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 3.441
After features/support/hooks.rb:108 0.000
4:14.168
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:42.842
And I prepare Tails for memory erasure tests 0.221
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.020
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.078

Pattern coverage: 0.000% (0 MiB out of 1441 MiB reference memory)

After features/support/hooks.rb:339 3.504
After features/support/hooks.rb:108 0.008