mem_dump_obj(9)

💖 mem_dump_obj(9) — Kernel API Manual 💖

okay bestie, welcome to the Kernel API Manual page for mem_dump_obj. It's giving “print the receipts on this object,” and I'm obsessed. 🫶

✨ NAME ✨

mem_dump_obj — Print available provenance information. that's it, that's the name, periodt. 💅

🦋 SYNOPSIS 🦋

void mem_dump_obj (void *object );

🌸 ARGUMENTS 🌸

• object — object for which to find provenance information. literally the object we're getting the provenance tea on. 🍓

🎀 DESCRIPTION 🎀

okay so this function uses pr_cont, so that the caller is expected to have printed out whatever preamble is appropriate. no cap — the preamble is the caller's job. 💅

The provenance information depends on the type of object and on how much debugging is enabled. For example, for a slab-cache object, the slab name is printed, and, if available, the return address and stack trace from the allocation and last free path of that object. iconic forensic behavior, honestly. 🔥

👑 SEE ALSO 👑

Kernel file ./mm/util.c — and the whole SEE ALSO entourage:

• kfree_const(9)
• __kmemdup_nul(9)
• kstrdup(9)
• kstrdup_const(9)
• kstrndup(9)
• kmemdup(9)
• kmemdup_array(9)
• kvmemdup(9)
• kmemdup_nul(9)
• memdup_user(9)
• vmemdup_user(9)
• strndup_user(9)
• memdup_user_nul(9)
• randomize_page(9)
• __account_locked_vm(9)
• account_locked_vm(9)
• __vmalloc_array(9)
• vmalloc_array(9)
• __vcalloc(9)
• vcalloc(9)
• folio_mapping(9)
• folio_copy(9)
• get_cmdline(9)
• compat_set_desc_from_vma(9)
• __compat_vma_mmap(9)
• compat_vma_mmap(9)
• snapshot_page(9)
• mmap_action_prepare(9)
• mmap_action_complete(9)
• folio_pte_batch(9)
• page_range_contiguous(9)

byeee bestie 💅 this page's source/version is ./mm, dated October 2026. mwah 🫶