trim and rootfs encryption not compatible?

[tinker2much]

I've had trim set up on the SSD on my pi5 since 19 Nov 2023 using your satrim (yay!). I've had the rootfs on that SSD encrypted since 23 Jan 2024 using your sdm-cryptconfig (also yay!). But I just noticed that trim isn't happening on /sda2 since the encryption happened, though its still happening on sda1. I don't know enough to say whether this is necessarily so, given encryption, or whether there's something that can be tweaked to let it happen again; I'm just posting the fact for your more informed opinion:

pi@pi5:~ $ journalctl | grep trimmed
Nov 21 11:22:00 pi5 fstrim[21427]: /: 407.8 GiB (437823856640 bytes) trimmed on /dev/sda2
Nov 21 11:22:00 pi5 fstrim[21427]: /boot/firmware: 437.7 MiB (458952704 bytes) trimmed on /dev/sda1
Nov 29 11:26:31 pi5 fstrim[9780]: /: 407.7 GiB (437718462464 bytes) trimmed on /dev/sda2
Nov 29 11:26:31 pi5 fstrim[9780]: /boot/firmware: 437.7 MiB (458952704 bytes) trimmed on /dev/sda1
Dec 05 10:27:07 pi5 fstrim[8863]: /: 407.5 GiB (437539053568 bytes) trimmed on /dev/sda2
Dec 05 10:27:07 pi5 fstrim[8863]: /boot/firmware: 437.7 MiB (458952704 bytes) trimmed on /dev/sda1
Dec 11 12:02:01 pi5 fstrim[4433]: /: 405.4 GiB (435252088832 bytes) trimmed on /dev/sda2
Dec 11 12:02:01 pi5 fstrim[4433]: /boot/firmware: 437.6 MiB (458883072 bytes) trimmed on /dev/sda1
Dec 18 07:16:02 pi5 fstrim[7037]: /: 404.5 GiB (434326900736 bytes) trimmed on /dev/sda2
Dec 18 07:16:02 pi5 fstrim[7037]: /boot/firmware: 437.6 MiB (458883072 bytes) trimmed on /dev/sda1
Dec 25 08:54:47 pi5 fstrim[6115]: /: 404.2 GiB (433986170880 bytes) trimmed on /dev/sda2
Dec 25 08:54:47 pi5 fstrim[6115]: /boot/firmware: 437.6 MiB (458883072 bytes) trimmed on /dev/sda1
Jan 01 01:13:10 pi5 fstrim[75980]: /: 407 GiB (436979990528 bytes) trimmed on /dev/sda2
Jan 01 01:13:10 pi5 fstrim[75980]: /boot/firmware: 437.6 MiB (458883072 bytes) trimmed on /dev/sda1
Jan 09 11:41:44 pi5 fstrim[6402]: /: 407 GiB (437053423616 bytes) trimmed on /dev/sda2
Jan 09 11:41:44 pi5 fstrim[6402]: /boot/firmware: 435.5 MiB (456685568 bytes) trimmed on /dev/sda1
Jan 15 12:24:15 pi5 fstrim[15734]: /: 406.9 GiB (436953976832 bytes) trimmed on /dev/sda2
Jan 15 12:24:15 pi5 fstrim[15734]: /boot/firmware: 437.6 MiB (458883072 bytes) trimmed on /dev/sda1
Jan 23 12:06:07 pi5 fstrim[7826]: /boot/firmware: 436.2 MiB (457345024 bytes) trimmed on /dev/sda1
Jan 29 09:27:14 pi5 fstrim[35206]: /boot/firmware: 436.1 MiB (457279488 bytes) trimmed on /dev/sda1

[gitbls]

I'll take a look at this after I finish 11.3. I'm pretty excited about the rootfs crypt improvements (SSH in to type the unlock password!), and there are some important bug fixes to keep us all sane 🤪