On Sun, Jan 24, 2021 at 03:27:25PM +0530, Gaurav Kohli wrote:
>
>
> On 1/24/2021 8:51 AM, Steven Rostedt wrote:
> > On Sat, 23 Jan 2021 22:03:27 +0530
> > Gaurav Kohli wrote:
> >
> >
> > > Sure I will do, I have never posted on backport branches. Let me check
> > > and post it.
> > >
> >
> >
On 1/24/2021 8:51 AM, Steven Rostedt wrote:
On Sat, 23 Jan 2021 22:03:27 +0530
Gaurav Kohli wrote:
Sure I will do, I have never posted on backport branches. Let me check
and post it.
Basically you take your original patch that was in mainline (as the
subject and commit message), and mak
On Sat, 23 Jan 2021 22:03:27 +0530
Gaurav Kohli wrote:
> Sure I will do, I have never posted on backport branches. Let me check
> and post it.
>
Basically you take your original patch that was in mainline (as the
subject and commit message), and make it work as if you were doing the
same exac
On 1/23/2021 4:19 PM, Denis Efremov wrote:
On 1/22/21 5:37 PM, Steven Rostedt wrote:
On Fri, 22 Jan 2021 16:55:29 +0530
Gaurav Kohli wrote:
That could possibly work.
Yes, this will work, As i have tested similar patch for internal testing
for kernel branches like 5.4/4.19.
Can you or
On 1/22/21 5:37 PM, Steven Rostedt wrote:
> On Fri, 22 Jan 2021 16:55:29 +0530
> Gaurav Kohli wrote:
>
That could possibly work.
>>
>> Yes, this will work, As i have tested similar patch for internal testing
>> for kernel branches like 5.4/4.19.
>
> Can you or Denis send a proper patc
On Fri, 22 Jan 2021 16:55:29 +0530
Gaurav Kohli wrote:
> >> That could possibly work.
>
> Yes, this will work, As i have tested similar patch for internal testing
> for kernel branches like 5.4/4.19.
Can you or Denis send a proper patch for Greg to backport? I'll review it,
test it and give
On Thu, Jan 21, 2021 at 03:37:32PM -0500, Steven Rostedt wrote:
> On Thu, 21 Jan 2021 23:15:22 +0300
> Denis Efremov wrote:
>
> > On 1/21/21 10:09 PM, Steven Rostedt wrote:
> > > On Thu, 21 Jan 2021 17:30:40 +0300
> > > Denis Efremov wrote:
> > >
> > >> Hi,
> > >>
> > >> This patch (CVE-2020-
On 1/22/2021 4:29 PM, Greg KH wrote:
On Thu, Jan 21, 2021 at 03:37:32PM -0500, Steven Rostedt wrote:
On Thu, 21 Jan 2021 23:15:22 +0300
Denis Efremov wrote:
On 1/21/21 10:09 PM, Steven Rostedt wrote:
On Thu, 21 Jan 2021 17:30:40 +0300
Denis Efremov wrote:
Hi,
This patch (CVE-2020-2
On Thu, 21 Jan 2021 23:15:22 +0300
Denis Efremov wrote:
> On 1/21/21 10:09 PM, Steven Rostedt wrote:
> > On Thu, 21 Jan 2021 17:30:40 +0300
> > Denis Efremov wrote:
> >
> >> Hi,
> >>
> >> This patch (CVE-2020-27825) was tagged with
> >> Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer rese
On 1/21/21 10:09 PM, Steven Rostedt wrote:
> On Thu, 21 Jan 2021 17:30:40 +0300
> Denis Efremov wrote:
>
>> Hi,
>>
>> This patch (CVE-2020-27825) was tagged with
>> Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer resets by avoiding
>> synchronize_rcu for each CPU")
>>
>> I'm not an expert
On Thu, 21 Jan 2021 17:30:40 +0300
Denis Efremov wrote:
> Hi,
>
> This patch (CVE-2020-27825) was tagged with
> Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer resets by avoiding
> synchronize_rcu for each CPU")
>
> I'm not an expert here but it seems like b23d7a5f4a07a only refactored
> r
Hi,
This patch (CVE-2020-27825) was tagged with
Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer resets by avoiding
synchronize_rcu for each CPU")
I'm not an expert here but it seems like b23d7a5f4a07a only refactored
ring_buffer_reset_cpu() by introducing reset_disabled_cpu_buffer() without
Below race can come, if trace_open and resize of
cpu buffer is running parallely on different cpus
CPUXCPUY
ring_buffer_resize
atomic_read(&buffer->resize_disabled)
tracing_open
tracing_reset_onl
On 10/5/2020 10:02 PM, Steven Rostedt wrote:
On Mon, 5 Oct 2020 21:59:02 +0530
Gaurav Kohli wrote:
Hi Steven,
I am using normal git send-email(never saw problem with this), Not sure
what is wrong. In my older mail i have kept you in to and rest in cc.
Let me try to resent it.
The Cc is
On Mon, 5 Oct 2020 21:59:02 +0530
Gaurav Kohli wrote:
> Hi Steven,
>
> I am using normal git send-email(never saw problem with this), Not sure
> what is wrong. In my older mail i have kept you in to and rest in cc.
>
> Let me try to resent it.
The Cc is working (I got it in my LKML box), but
On 10/5/2020 7:57 PM, Steven Rostedt wrote:
On Mon, 5 Oct 2020 10:25:15 -0400
Steven Rostedt wrote:
On Mon, 5 Oct 2020 10:09:34 +0530
Gaurav Kohli wrote:
Hi Steven,
please let us know, if below looks good to you or need modifications.
Strange, I don't have your original email in my in
On Mon, 5 Oct 2020 10:25:15 -0400
Steven Rostedt wrote:
> On Mon, 5 Oct 2020 10:09:34 +0530
> Gaurav Kohli wrote:
>
> > Hi Steven,
> >
> > please let us know, if below looks good to you or need modifications.
>
> Strange, I don't have your original email in my inbox. I do have it in my
> LK
On Mon, 5 Oct 2020 10:09:34 +0530
Gaurav Kohli wrote:
> Hi Steven,
>
> please let us know, if below looks good to you or need modifications.
Strange, I don't have your original email in my inbox. I do have it in my
LKML folder, but that's way too big for me to read. I checked my server
logs. I
Hi Steven,
please let us know, if below looks good to you or need modifications.
Thanks
Gaurav
On 9/24/2020 7:25 PM, Gaurav Kohli wrote:
Below race can come, if trace_open and resize of
cpu buffer is running parallely on different cpus
CPUXCPUY
Below race can come, if trace_open and resize of
cpu buffer is running parallely on different cpus
CPUXCPUY
ring_buffer_resize
atomic_read(&buffer->resize_disabled)
tracing_open
tracing_reset_onl
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