On Fri, 25 Mar 2022 15:53:09 +0800 Jason Wang wrote:
>
> Ok, Hillf, does this make sense for you? We want the issue to be fixed
> soon, it's near to our product release.
Feel free to go ahead - product release is important.
BR
Hillf
___
Virtualization
On Thu, 24 Mar 2022 16:20:34 +0800 Jason Wang wrote:
> On Thu, Mar 24, 2022 at 2:17 PM Michael S. Tsirkin wrote:
> > On Thu, Mar 24, 2022 at 02:04:19PM +0800, Hillf Danton wrote:
> > > On Thu, 24 Mar 2022 10:34:09 +0800 Jason Wang wrote:
> > > > On Thu, Mar 24, 2022
On Thu, 24 Mar 2022 10:34:09 +0800 Jason Wang wrote:
> On Thu, Mar 24, 2022 at 8:54 AM Hillf Danton wrote:
> >
> > On Tue, 22 Mar 2022 09:59:14 +0800 Jason Wang wrote:
> > >
> > > Yes, there will be no "infinite" loop, but since the loop is t
On Tue, 22 Mar 2022 09:59:14 +0800 Jason Wang wrote:
>
> Yes, there will be no "infinite" loop, but since the loop is triggered
> by userspace. It looks to me it will delay the flush/drain of the
> workqueue forever which is still suboptimal.
Usually it is barely possible to shoot two birds
On Mon, 21 Mar 2022 17:00:09 +0800 Jason Wang wrote:
>
> Ok, speak too fast.
Frankly I have fun running faster five days a week.
> So you meant to add a cond_resched() in the loop?
Yes, it is one liner.
Hillf
___
Virtualization mailing list
On Mon, 21 Mar 2022 14:04:28 +0800 Jason Wang wrote:
> A userspace triggerable infinite loop could happen in
> mlx5_cvq_kick_handler() if userspace keeps sending a huge amount of
> cvq requests.
>
> Fixing this by introducing a quota and re-queue the work if we're out
> of the budget. While at
On Thu, 16 Sep 2021 16:20:50 -0500 Mike Christie wrote:
>
> static int vhost_worker_create(struct vhost_dev *dev)
> {
> + DECLARE_COMPLETION_ONSTACK(start_done);
Nit, cut it.
> struct vhost_worker *worker;
> struct task_struct *task;
> + char buf[TASK_COMM_LEN];
>
On Mon, 24 Feb 2020 11:08:53 +0100 Stefano Garzarella wrote:
> On Sun, Feb 23, 2020 at 03:50:25PM +0800, Hillf Danton wrote:
> >
> > Seems like vsock needs a word to track lock owner in an attempt to
> > avoid trying to lock sock while the current is the lo
On Sat, 22 Feb 2020 10:58:12 -0800
> syzbot found the following crash on:
>
> HEAD commit:2bb07f4e tc-testing: updated tdc tests for basic filter
> git tree: net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=122efdede0
> kernel config:
On Thu, 3 Oct 2019 09:45:55 +0300 Jaak Ristioja wrote:
> On 30.09.19 16:29, Frediano Ziglio wrote:
> > Why didn't you update bug at
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813620?
> > I know it can seem tedious but would help tracking it.
>
> I suppose the lack on
On Mon, 9 Sep 2019 from Gerd Hoffmann
>
> Hmm, I think the patch is wrong.
Hmm...it should have added change only in the error path, leaving locks
for drivers to release if job is done with no error returned.
> As far I know it is the qxl drivers's
> job to call ttm_eu_backoff_reservation().
Hi,
On Mon, 9 Sep 2019 from Gerd Hoffmann
>
> Hmm, I think the patch is wrong. As far I know it is the qxl drivers's
> job to call ttm_eu_backoff_reservation(). Doing that automatically in
> ttm will most likely break other ttm users.
>
Perhaps.
>So I guess the call is missing in the qxl
>From Frediano Ziglio
>
> Where does it came this patch?
My fingers tapping the keyboard.
> Is it already somewhere?
No idea yet.
> Is it supposed to fix this issue?
It may do nothing else as far as I can tell.
> Does it affect some other card beside QXL?
Perhaps.
On Tue, 6 Aug 2019 21:00:10 +0300 From: Jaak Ristioja
> Hello!
>
> I'm writing to report a crash in the QXL / DRM code in the Linux kernel.
> I originally filed the issue on LaunchPad and more details can be found
> there, although I doubt whether these details are useful.
>
>
On Thu, 15 Aug 2019 12:09:41 +0100 Tom Murphy wrote:
>
> Handle devices which defer their attach to the iommu in the dma-iommu api
>
> Signed-off-by: Tom Murphy
> ---
> drivers/iommu/dma-iommu.c | 27 ++-
> 1 file changed, 26 insertions(+), 1 deletion(-)
>
> diff
Fri, 26 Jul 2019 08:26:01 -0700 (PDT)
syzbot has bisected this bug to:
commit 0ecfebd2b52404ae0c54a878c872bb93363ada36
Author: Linus Torvalds
Date: Sun Jul 7 22:41:56 2019 +
Linux 5.2
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=118810bfa0
start commit:
On Tue, 2 Jul 2019 13:30:07 +0800 Jason Wang wrote:
> On 2019/7/2 Eric Biggers wrote:
> > [This email was generated by a script. Let me know if you have any
> > suggestions
> > to make it better, or if you want it re-generated with the latest status.]
> >
> > Of the currently open syzbot
Hello Syzbot
On Fri, 14 Jun 2019 11:04:03 +0800 syzbot wrote:
>
>Hello,
>
>syzbot has tested the proposed patch but the reproducer still triggered crash:
>memory leak in batadv_tvlv_handler_register
>
> 484.626788][ T156] bond0 (unregistering): Releasing backup interface
> bond_slave_1
Hello Syzbot
On Fri, 14 Jun 2019 11:04:03 +0800 syzbot wrote:
>
>Hello,
>
>syzbot has tested the proposed patch but the reproducer still triggered crash:
>memory leak in batadv_tvlv_handler_register
>
It is not ubuf leak which is addressed in this thread. Good news.
I will see this new leak
Hello Syzbot
On Fri, 14 Jun 2019 02:26:02 +0800 syzbot wrote:
>
> Hello,
>
> syzbot has tested the proposed patch but the reproducer still triggered crash:
> memory leak in vhost_net_ioctl
>
Oh sorry for my poor patch.
> ANGE): hsr_slave_1: link becomes ready
> 2019/06/13 18:24:57 executed
Hello Dmitry
On Thu, 13 Jun 2019 20:12:06 +0800 Dmitry Vyukov wrote:
> On Thu, Jun 13, 2019 at 2:07 PM Hillf Danton wrote:
> >
> > Hello Jason
> >
> > On Thu, 13 Jun 2019 17:10:39 +0800 Jason Wang wrote:
> > >
> > > This is basically a
Hello Jason
On Thu, 13 Jun 2019 17:10:39 +0800 Jason Wang wrote:
>
> This is basically a kfree(ubuf) after the second vhost_net_flush() in
> vhost_net_release().
>
Fairly good catch.
> Could you please post a formal patch?
>
I'd like very much to do that; but I wont, I am afraid, until I
On Wed, 05 Jun 2019 16:42:05 -0700 (PDT) syzbot wrote:
Hello,
syzbot found the following crash on:
HEAD commit:788a0249 Merge tag 'arc-5.2-rc4' of git://git.kernel.org/p..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15dc9ea6a0
kernel config:
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