Project Number Date
test_Tails_ISO_21565-flatpak-safe 35 15 Sep 2026, 03:21

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 7:34.068 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.
19.243
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 6.169
And I prepare Tails for memory erasure tests 0.294
When I start a process allocating 128 MiB of memory with a known pattern 2.187
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.860

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

When I kill the allocating process 0.207
Then I find very few patterns in the guest's memory after 5 seconds 7.524

Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)

After features/support/hooks.rb:339 0.999
After features/support/hooks.rb:108 0.000
19.270
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 6.191
And I prepare Tails for memory erasure tests 0.251
And I find very few patterns in the guest's memory 2.786

Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.310
Then patterns cover at least 99% of the test FS size in the guest's memory 2.721

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

When I umount "/mnt" 0.341
Then I find very few patterns in the guest's memory after 3 seconds 5.666

Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)

After features/support/hooks.rb:339 0.927
After features/support/hooks.rb:108 0.000
47.242
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 17.843
And I prepare Tails for memory erasure tests 0.273
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.302
Then I find very few patterns in the guest's memory 2.685

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.367
Then patterns cover at least 75% of the test FS size in the guest's memory 2.799

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

When I umount the USB drive 0.609
Then I find very few patterns in the guest's memory after 3 seconds 5.686

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.504
Then patterns cover at least 99% of the test FS size in the guest's memory 2.872

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

When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.743

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

After features/support/hooks.rb:339 0.962
After features/support/hooks.rb:108 0.000
1:2.351
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 6.129
And I prepare Tails for memory erasure tests 0.288
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.318
Then I find very few patterns in the guest's memory 2.750

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.254
Then patterns cover at least 99% of the test FS size in the guest's memory 2.632

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

When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 5.331

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

# read cache
When I mount the USB drive again 4.094
And I read the content of the test FS 0.368
Then patterns cover at least 99% of the test FS size in the guest's memory 2.723

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

When I umount the USB drive 0.421
Then I find very few patterns in the guest's memory after 3 seconds 5.517

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

After features/support/hooks.rb:339 0.833
After features/support/hooks.rb:108 0.000
44.165
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 6.149
And I prepare Tails for memory erasure tests 0.367
When I fill a 128 MiB file with a known pattern on the root filesystem 12.930
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.605
Then patterns cover at least 128 MiB in the guest's memory 2.168

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.938

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

After features/support/hooks.rb:339 3.385
After features/support/hooks.rb:108 0.000
4:21.794
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 3:50.115
And I prepare Tails for memory erasure tests 0.263
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.307
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.103

Pattern coverage: 0.000% (0 MiB out of 1442 MiB reference memory)

After features/support/hooks.rb:339 3.382
After features/support/hooks.rb:108 0.010