filter_irq_stacks(9)

✨ filter_irq_stacks(9) ✨

okay bestie, welcome to this Kernel API Manual page for filter_irq_stacks(9) — it’s giving very specific stack-trace energy, and we’re gonna read it together like the iconic little manual page it is. 💅

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💖 NAME 💖

filter_irq_stacks — find the first IRQ stack entry in a trace. no cap, that’s the whole vibe. 🎀

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🌸 SYNOPSIS 🌸

unsigned int filter_irq_stacks (unsigned long *entries , unsigned int
nr_entries );

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🦋 ARGUMENTS 🦋

• entries — pointer to the stack trace array. literally the array of stack trace stuff you’re handing over. 🫶
• nr_entries — number of entries in the storage array. like, how many spots are in that storage array. 🌸

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🔥 RETURN 🔥

it returns the number of trace entries until the IRQ stack starts. that’s the number, bestie. ⭐

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👑 SEE ALSO 👑

peep the kernel file ./kernel/stacktrace.c, plus these absolute icons:

• stack_trace_print(9)
• 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)

yes, some of those repeat — that’s literally what the page says, not me being extra. 💀

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mwah 💋 this cutie came from source/version ./kernel, dated October 2026 — filter_irq_stacks(9) out, periodt. 🧚💜