From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+93bd128a383695391534@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [dri?] WARNING in vkms_get_vblank_timestamp (2)
Date: Thu, 8 Feb 2024 08:36:07 +0800 [thread overview]
Message-ID: <20240208003607.1129-1-hdanton@sina.com> (raw)
In-Reply-To: <000000000000edf6a306105afb50@google.com>
On Thu, 01 Feb 2024 16:13:40 -0800
> HEAD commit: 6764c317b6bb Merge tag 'scsi-fixes' of git://git.kernel.or..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=102774b7e80000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
--- x/drivers/gpu/drm/drm_vblank.c
+++ y/drivers/gpu/drm/drm_vblank.c
@@ -276,7 +276,7 @@ static void drm_update_vblank_count(stru
struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
u32 cur_vblank, diff;
bool rc;
- ktime_t t_vblank;
+ ktime_t t_vblank = 128;
int count = DRM_TIMESTAMP_MAXRETRIES;
int framedur_ns = vblank->framedur_ns;
u32 max_vblank_count = drm_max_vblank_count(dev, pipe);
--
next prev parent reply other threads:[~2024-02-08 0:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 3:40 syzbot
2023-07-19 7:15 ` syzbot
2024-02-02 0:13 ` syzbot
2024-02-08 0:36 ` Hillf Danton [this message]
2024-02-08 1:44 ` syzbot
2024-02-26 2:37 ` Lizhi Xu
2024-02-26 2:53 ` syzbot
2024-02-26 2:52 ` Lizhi Xu
2024-02-26 2:58 ` syzbot
2024-02-26 4:02 ` Lizhi Xu
2024-02-26 4:34 ` syzbot
2024-02-26 7:30 ` Lizhi Xu
2024-02-26 8:33 ` syzbot
2024-02-07 18:17 ` syzbot
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=20240208003607.1129-1-hdanton@sina.com \
--to=hdanton@sina.com \
--cc=linux-kernel@vger.kernel.org \
--cc=syzbot+93bd128a383695391534@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
/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
all inboxes | Powered by JetHome®