Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 47 27 May 2026, 11:44

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 7:48.246 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.
18.589
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.735
And I prepare Tails for memory erasure tests 0.335
When I start a process allocating 128 MiB of memory with a known pattern 2.246
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.097

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

When I kill the allocating process 0.241
Then I find very few patterns in the guest's memory after 5 seconds 6.932

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:335 0.669
After features/support/hooks.rb:104 0.000
18.485
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.560
And I prepare Tails for memory erasure tests 0.392
And I find very few patterns in the guest's memory 2.016

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.872
Then patterns cover at least 99% of the test FS size in the guest's memory 2.244

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

When I umount "/mnt" 0.385
Then I find very few patterns in the guest's memory after 3 seconds 5.015

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:335 0.816
After features/support/hooks.rb:104 0.000
33.106
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.628
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.475
Then I find very few patterns in the guest's memory 1.896

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.779
Then patterns cover at least 75% of the test FS size in the guest's memory 2.083

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

When I umount the USB drive 0.763
Then I find very few patterns in the guest's memory after 3 seconds 4.947

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.403
Then patterns cover at least 99% of the test FS size in the guest's memory 2.105

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

When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.977

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:335 1.060
After features/support/hooks.rb:104 0.000
1:1.846
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 6.821
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.476
Then I find very few patterns in the guest's memory 1.945

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.457
Then patterns cover at least 99% of the test FS size in the guest's memory 2.305

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

When I umount the USB drive 0.562
Then I find very few patterns in the guest's memory after 3 seconds 4.681

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

# read cache
When I mount the USB drive again 4.394
And I read the content of the test FS 0.361
Then patterns cover at least 99% of the test FS size in the guest's memory 2.153

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

When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 4.878

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:335 1.219
After features/support/hooks.rb:104 0.000
55.135
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.946
And I prepare Tails for memory erasure tests 0.377
When I fill a 128 MiB file with a known pattern on the root filesystem 23.389
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.007
Then patterns cover at least 128 MiB in the guest's memory 1.782

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

When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.624

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:335 3.465
After features/support/hooks.rb:104 0.000
4:41.082
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.355
And I prepare Tails for memory erasure tests 0.376
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.170
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.172

Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)

After features/support/hooks.rb:335 3.877
After features/support/hooks.rb:104 0.013