STRUCT PSTORE_RECORD(9)

✨ struct pstore_record(9) ✨

okay so bestie, this is the struct pstore_record(9) page from the Kernel API Manual, and it's literally the blueprint for one single pstore record entry — like, the whole anatomy of a record, laid out. we're gonna go through it field by field, no skipping, no cap 💅

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🌸 NAME 🌸

struct pstore_record — the details of a pstore record entry 🎀

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🦋 SYNOPSIS 🦋

struct pstore_record {
    struct pstore_info      *psi;
    enum pstore_type_id     type;
    u64 id;
    struct timespec64       time;
    char *buf;
    ssize_t size;
    ssize_t ecc_notice_size;
    void *priv;
    int count;
    enum kmsg_dump_reason   reason;
    unsigned int            part;
    bool compressed;
 };

like, that's the whole struct, copy it exactly, don't be weird about it ✨

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💖 Members 💖

• psi — the pstore backend driver information. your hookup to whoever's actually doing the storing 🫶
• type — the pstore record type. what kind of record is this 👀
• id — a per-type unique identifier for the record. so it's unique within its type, iykyk 💅
• time — the timestamp of the record. when it happened ⏰
• buf — a pointer to the record contents. the actual payload, the main character 🎀
• size — the size of buf. yes bestie, we track our own sizes here 🦋
• ecc_notice_size — ECC information for buf. the error-correction tea ☕
• priv — a pointer for backend specific use, and it will be kfreed by the pstore core if non-NULL when the record is freed. so don't go freeing it yourself, that's a whole mess 😭
• count — the Oops count since boot. every oops gets counted, iconic behavior honestly 💀
• reason — the kdump reason for notification. why are we even talking about this record 📣
• part — the position in a multipart record. like, which slice of the record are we 🌈
• compressed — whether the buffer is compressed. true/false energy, no in-between ⭐

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🔥 Description 🔥

Valid for PSTORE_TYPE_DMESG type: — and that's literally it, that's the whole description. tiny but mighty, periodt 👑

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🧚 SEE ALSO 🧚

• Kernel file ./include/linux/pstore.h
• struct pstore_info(9)

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💜 quick vibe check: if priv is non-NULL, the pstore core handles the kfree when the record is freed. do not double-free it, bestie, i'm begging 🙈

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mwah 💋 that's the whole page, and it comes courtesy of ./include/linux, dated October 2026, filed under struct pstore_record(9) — slay, go read the kernel headers now 🫶✨