libnvme(2)

πŸ’– NAME πŸ’–

struct nvme_lba_status_log β€” the LBA Status Information Log, bestie ✨

Ok so picture this: the NVMe drive keeps a whole lil diary about which logical blocks are giving... nothing. Unreadable. Gone. And this struct? This struct is that diary. It's the LBA Status Information Log and it's lowkey iconic πŸŽ€


🌸 SYNOPSIS 🌸

struct nvme_lba_status_log {
    __le32 lslplen;
    __le32 nlslne;
    __le32 estulb;
    __u8 rsvd12[2];
    __le16 lsgc;
    struct nvme_lbas_ns_element elements[];
};

Look at her. Six fields and not one of them is filler (well, okay, one of them literally is filler, we'll get there πŸ™ˆ). The trailing elements[] is a flexible array member so this whole thing is giving main character energy β€” it just keeps going until the log says stop.


πŸ‘‘ Members πŸ‘‘

The cast of characters, in order, no skips, no skimming, we respect the source fr fr.

  • lslplen β€” __le32. The LBA Status Log Page Length. It's the length. Of the log page. She said what she said πŸ’…
  • nlslne β€” __le32. The Number of LBA Status Log Namespace Elements. Yes it's a mouthful, we're not renaming her. This is how many namespace elements are chillin' in that log.
  • estulb β€” __le32. The Estimate of Unrecoverable Logical Blocks 😭 not the unrecoverable blocks. A whole estimate of how bad it is. It's giving "we did the math and... yeah."
  • rsvd12 β€” __u8[2]. Reserved. That's it. That's the description. She's just some reserved padding bytes minding her own business, do not touch her 🫢
  • lsgc β€” __le16. The LBA Status Generation Counter. Generational. Literally. It bumps when the status info gets a whole new era ✨
  • elements β€” struct nvme_lbas_ns_element[]. The LBA Status Log Namespace Element List β€” the actual receipts, one entry per namespace element, trailing off the end of the struct like a group chat that never ends πŸ’€

🌈 gentle reminder bestie: every single one of these lil fields is little-endian (__le32, __le16), so vibe check your byte order before you go reading them raw. iykyk.

That's the whole page, mwah πŸ’‹ This was libnvme(2) from the API Manual, page date July 2026, and the page is literally named struct nvme_lba_status_log. Slay, ate, no crumbs. Periodt πŸ‘‘πŸ’–πŸ¦‹

πŸ“¦ where this page comes from