AMDGPU RAS SYSFS GPU_VRAM_BAD_PAGES INTERFACE(9)

💖 AMDGPU RAS sysfs gpu_vram_bad_pages Interface 💖

okay bestie so we're in the Kernel API Manual today and this page is literally the whole vibe check on your GPU's bad vram pages ✨

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🌸 DESCRIPTION 🌸

this interface lets u (yes u 🫶) read the bad pages of vram on the gpu — and u get to do it right through:

/sys/class/drm/card[0/1/2...]/device/ras/gpu_vram_bad_pages

it outputs multiple lines, and each line stands for one gpu page 👑 no cap, one page per line.

the format of one line is below, bestie:

gpu pfn : gpu page size : flags

gpu pfn and gpu page size are printed in hex format 🔥 (hex girl summer fr fr). and flags can be one of the below characters:

• R — reserved, this gpu page is reserved and not able to use 💀
• P — pending for reserve, this gpu page is marked as bad, will be reserved in next window of page_reserve ⏳
• F — unable to reserve. this gpu page can't be reserved due to some reasons 😭

🦋 Examples 🦋

like, actual receipts:

0x00000001 : 0x00001000 : R
0x00000002 : 0x00001000 : P

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⭐ SEE ALSO ⭐

go read these next, iykyk 💅

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
• AMDGPU RAS debugfs control interface(9)
• AMDGPU RAS debugfs EEPROM table reset interface(9)
• AMDGPU RAS sysfs Error Count Interface(9)
• amdgpu_ras_query_error_count_helper(9)
• amdgpu_ras_query_error_count(9)
• AMDGPU RAS Reboot Behavior for Unrecoverable Errors(9)

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🎀 that's the whole page, mwah 🎀 — this came from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's serving AMDGPU RAS ...es Interface(9) energy from the Kernel API Manual. slay, go read ur bad pages 💜🦋