public inbox for gdb@sourceware.org
 help / color / mirror / Atom feed
From: He Leon <Leon.He@msn.com>
To: "gdb@sourceware.org" <gdb@sourceware.org>
Subject: APP cannot be interrupted to gdb console by contrl+c, if APP enters into kernel mode via ioctl.
Date: Tue, 2 Feb 2021 12:13:06 +0000	[thread overview]
Message-ID: <ME3PR01MB61043A7A2467138DC84E7B63EEB59@ME3PR01MB6104.ausprd01.prod.outlook.com> (raw)

Hi all,

I meet an issue while debugging APP by gdb.

I have a very simple APP and a very simple Kernel Mode Driver. APP accesses Kernel Mode Driver via IOCTL.

When I debug APP in User Mode by gdb, I found if APP enters and stays inside IOCTL, the APP cannot be interrupted to gdb console by control+C.

The issue is quite easy to be reproduced. I have reproduced it over different versions of kernel or gdb.

Is there such limitation for: gdb doesn't work if APP enters and stays in kernel mode?

Thanks




             reply	other threads:[~2021-02-02 12:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-02 12:13 He Leon [this message]
2021-02-02 13:47 ` Paul Koning
     [not found]   ` <ME3PR01MB6104A7C20E589FCA43C0B389EEB49@ME3PR01MB6104.ausprd01.prod.outlook.com>
2021-02-03 14:01     ` Paul Koning

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ME3PR01MB61043A7A2467138DC84E7B63EEB59@ME3PR01MB6104.ausprd01.prod.outlook.com \
    --to=leon.he@msn.com \
    --cc=gdb@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).