stack_trace_print(9)

💅 stack_trace_print(9) — a.k.a. the "bestie, print my stack trace" era

okay so real talk, this is a page from the Kernel API Manual and it's lowkey iconic. it's stack_trace_print(9) and it does exactly one thing: it prints out the entries in a stack trace. that's it. that's the whole vibe. no cap. 🫶

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✨ NAME ✨

stack_trace_print — literally just prints the entries in the stack trace. slay.

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🌸 SYNOPSIS 🌸

void stack_trace_print (const unsigned long *entries , unsigned int
       nr_entries , int spaces );

void return, three args, no notes. the way that signature just works. 💅

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🦋 ARGUMENTS 🦋

okay bestie here's the breakdown, one by one, no skipping:

• entries — pointer to the storage array. it's giving "here's where the data lives". 👑
• nr_entries — number of entries in the storage array. yes, it's the count. yes, you need it. the array does not come with a little nametag, so tell it. 😭
• spaces — number of leading spaces to print. it's the indentation parameter. it's the "make it cute and aligned" parameter. 🎀

ngl, spaces is such a main character move for an argument that just adds whitespace. but we respect it.

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🧚 SEE ALSO 🧚

the whole squad, in the order the page gave them, duplicates included — because we don't edit the group chat roster:

• Kernel file ./kernel/stacktrace.c
• stack_trace_snprint(9)
• stack_trace_save(9)
• stack_trace_save_tsk(9)
• stack_trace_save_regs(9)
• stack_trace_save_tsk_reliable(9)
• stack_trace_save_user(9)
• stack_trace_save(9)
• stack_trace_save_tsk(9)
• stack_trace_save_regs(9)
• stack_trace_save_tsk_reliable(9)
• stack_trace_save_user(9)
• filter_irq_stacks(9)

and yeah, some of them are in there twice. that's not me being messy, that's the source material. iykyk. 💀

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✨ cute little sign-off ✨

this whole situation lives in ./kernel, and it's dated October 2026, page name stack_trace_print(9). go forth and print those traces, bestie. 💖 🌈 ⭐