Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 66 18 Jun 2026, 14:37

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 7:59.101 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.
19.186
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 7.296
And I prepare Tails for memory erasure tests 0.408
When I start a process allocating 128 MiB of memory with a known pattern 2.268
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.961

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

When I kill the allocating process 0.217
Then I find very few patterns in the guest's memory after 5 seconds 7.034

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:339 1.117
After features/support/hooks.rb:108 0.000
18.804
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 7.294
And I prepare Tails for memory erasure tests 0.358
And I find very few patterns in the guest's memory 1.756

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.614
Then patterns cover at least 99% of the test FS size in the guest's memory 2.432

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

When I umount "/mnt" 0.371
Then I find very few patterns in the guest's memory after 3 seconds 4.976

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:339 1.106
After features/support/hooks.rb:108 0.000
34.224
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 7.226
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.350
Then I find very few patterns in the guest's memory 1.793

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.808
Then patterns cover at least 75% of the test FS size in the guest's memory 2.118

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

When I umount the USB drive 0.768
Then I find very few patterns in the guest's memory after 3 seconds 4.895

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# read cache
When I mount the USB drive again 0.297
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 1.953

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

When I umount the USB drive 0.367
Then I find very few patterns in the guest's memory after 3 seconds 4.878

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:339 1.045
After features/support/hooks.rb:108 0.000
1:6.946
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 7.587
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.281
Then I find very few patterns in the guest's memory 2.427

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.463
Then patterns cover at least 99% of the test FS size in the guest's memory 2.034

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

When I umount the USB drive 0.610
Then I find very few patterns in the guest's memory after 3 seconds 4.714

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# read cache
When I mount the USB drive again 4.595
And I read the content of the test FS 0.325
Then patterns cover at least 99% of the test FS size in the guest's memory 2.264

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

When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 4.907

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:339 0.910
After features/support/hooks.rb:108 0.000
53.915
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 7.072
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the root filesystem 22.010
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.750
Then patterns cover at least 128 MiB in the guest's memory 1.713

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.020

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 3.704
After features/support/hooks.rb:108 0.000
4:46.023
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:4.936
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.886
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.881

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:339 3.688
After features/support/hooks.rb:108 0.031