Re: [PATCH 6.1] softirq: Add trace points for tasklet entry/exit

From: John Stultz
Date: Thu Aug 21 2025 - 14:55:17 EST


On Thu, Aug 21, 2025 at 11:41 AM Sumanth Gavini
<sumanth.gavini@xxxxxxxxx> wrote:
>
> Hi All,
>
> Just following up on my patch submitted with subject "Subject: [PATCH 6.1] softirq: Add trace points for tasklet entry/exit".
>
> Original message: https://lore.kernel.org/all/20250812161755.609600-1-sumanth.gavini@xxxxxxxxx/
>
> Would you have any feedback on this change? I'd be happy to address any comments or concerns.
>
> This patch fixes this three bugs
> 1. https://syzkaller.appspot.com/bug?extid=5284a86a0b0a31ab266a
> 2. https://syzkaller.appspot.com/bug?extid=296695c8ae3c7da3d511
> 3. https://syzkaller.appspot.com/bug?extid=97f2ac670e5e7a3b48e4

How does a patch adding a tracepoint fix the bugs highlighted here?
It seems maybe it would help in debugging those issues, but I'm not
sure I see how it would fix them.

thanks
-john