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From: Thomas Gleixner <tglx@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Michael Kelley <mhklinux@outlook.com>, Dmitry Ilvokhin
 <d@ilvokhin.com>, Radu Rendec <radu@rendec.net>, Jan Kiszka
 <jan.kiszka@siemens.com>, Kieran Bingham <kbingham@kernel.org>, Florian
 Fainelli <florian.fainelli@broadcom.com>, Marc Zyngier <maz@kernel.org>
Subject: Re: [patch V4 07/15] scripts/gdb: Update x86 interrupts to the
 array based storage
In-Reply-To: <20260331072419.015247250@kernel.org>
References: <20260331071453.172185305@kernel.org>
 <20260331072419.015247250@kernel.org>
Date: Tue, 31 Mar 2026 16:47:54 +0200
Message-ID: <87cy0k9ht1.ffs@tglx>
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On Tue, Mar 31 2026 at 09:26, Thomas Gleixner wrote:
> -def show_irq_err_count(prec):
> -    cnt = utils.gdb_eval_or_none("irq_err_count")
> -    text = ""
> -    if cnt is not None:
> -        text += "%*s: %10u\n" % (prec, "ERR", cnt['counter'])
> -    return text

Just noticed that this is used by mips and needs to stay. 

>  def x86_show_interupts(prec):
> -    text = x86_show_irqstat(prec, "NMI", '__nmi_count', 'Non-maskable interrupts')
> +    info_type = gdb.lookup_type('struct irq_stat_info')
> +    info = gdb.parse_and_eval('irq_stat_info')
> +    bitmap = gdb.parse_and_eval('irq_stat_count_show')
> +    nbits = 8 * int(bitmap.type.sizeof)

and this only works for a bitmap with size <= [32|64]. The correct variant
is:

       bitsperlong = 8 * int(bitmap.type.target().sizeof)