STRUCT HL_PAGE_FAULT_INFO(9)

💅 struct hl_page_fault_info(9) — the Kernel API Manual glow-up

okay so bestie, gather round, because we're talking about struct hl_page_fault_info from the Kernel API Manual and honestly? it's giving "small struct, big feelings." 🎀 this little icon is literally just a bundle of page fault information, and we're gonna go through every single member together, no skips, no cap. ✨

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🌸 NAME 🌸

struct hl_page_fault_info — page fault information. that's it, that's the whole vibe. 💖

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✨ SYNOPSIS ✨

here's the struct in all her main character glory, copied exactly because we do not mess with the source:

struct hl_page_fault_info {
    __s64 timestamp;
    __u64 addr;
    __u16 engine_id;
    __u8 pad[6];
 };

look at her. immaculate. 🫶

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🦋 Members 🦋

• timestamp — the timestamp of the page fault ⏰. like, when did the whole thing go down.
• addr — the address which accessing it caused page fault 🌈. yes, the address you touched that started all this drama. it's literally the culprit.
• engine_id — the engine id which caused the page fault 🔥. important note bestie: this one is supported only in gaudi3. so if you're not on gaudi3, don't come for her, she's not available. 💀

ngl, that pad[6] is just sitting there doing structural support duty and we respect the quiet ones. 🧚

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👑 SEE ALSO 👑

the whole friend group, and we love every one of them:

• Kernel file ./include/uapi/drm/habanalabs_accel.h enum
• hl_goya_dma_direction(9)
• enum hl_device_status(9)
• struct hl_info_hw_ip_info(9)
• struct hl_info_pci_counters(9)
• struct hl_info_clk_throttle(9)
• struct hl_info_energy(9)
• struct hl_open_stats_info(9)
• struct hl_power_info(9)
• struct hl_info_sync_manager(9)
• struct hl_info_cs_counters(9)
• struct hl_info_last_err_open_dev_time(9)
• struct hl_info_cs_timeout_event(9)
• struct hl_info_razwi_event(9)
• struct hl_info_undefined_opcode_event(9)
• struct hl_info_hw_err_event(9)
• struct hl_info_fw_err_event(9)
• struct hl_info_engine_err_event(9)
• struct hl_info_dev_memalloc_page_sizes(9)
• struct hl_user_mapping(9)
• struct hl_info_args(9)

like, the entire squad showed up. no one left on read. 💜

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🍓 the cute sign-off 🍓

this page lives in ./include/uapi/drm, dated October 2026 (yes, future queen behavior ⭐), and it's filed under struct hl_page_fault_info(9) in the Kernel API Manual. mwah. 💅🌸 bye bestie, go read your page faults responsibly! 🦋✨