Project Number Date
test_Tails_ISO_21565-flatpak-safe 95 21 Oct 2026, 03:23

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 7:14.403 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.
19.231
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 6.144
And I prepare Tails for memory erasure tests 0.292
When I start a process allocating 128 MiB of memory with a known pattern 2.156
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.875

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

When I kill the allocating process 0.183
Then I find very few patterns in the guest's memory after 5 seconds 7.579

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

After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
20.013
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 6.207
And I prepare Tails for memory erasure tests 0.276
And I find very few patterns in the guest's memory 2.902

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.399
Then patterns cover at least 99% of the test FS size in the guest's memory 3.157

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

When I umount "/mnt" 0.366
Then I find very few patterns in the guest's memory after 3 seconds 5.704

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 0.694
After features/support/hooks.rb:108 0.000
36.222
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 0.280
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.183
Then I find very few patterns in the guest's memory 2.712

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.775
Then patterns cover at least 75% of the test FS size in the guest's memory 2.832

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

When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 5.626

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.534
Then patterns cover at least 99% of the test FS size in the guest's memory 2.980

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

When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.872

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 1.004
After features/support/hooks.rb:108 0.000
59.380
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 6.234
And I prepare Tails for memory erasure tests 0.290
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.537
Then I find very few patterns in the guest's memory 2.887

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.099
Then patterns cover at least 99% of the test FS size in the guest's memory 2.826

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

When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 5.524

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

# read cache
When I mount the USB drive again 3.814
And I read the content of the test FS 0.348
Then patterns cover at least 99% of the test FS size in the guest's memory 2.627

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

When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 5.282

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 0.936
After features/support/hooks.rb:108 0.000
45.094
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 6.285
And I prepare Tails for memory erasure tests 0.282
When I fill a 128 MiB file with a known pattern on the root filesystem 13.955
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.556
Then patterns cover at least 128 MiB in the guest's memory 2.230

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 20.779

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 3.441
After features/support/hooks.rb:108 0.000
4:14.459
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 3:42.425
And I prepare Tails for memory erasure tests 0.245
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.673
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.110

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

After features/support/hooks.rb:339 3.724
After features/support/hooks.rb:108 0.009