[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <2023092009-angriness-sank-ae4f@gregkh>
Date: Wed, 20 Sep 2023 10:11:06 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Guenter Roeck <linux@...ck-us.net>,
Kyle Zeng <zengyhkyle@...il.com>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev,
linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, shuah@...nel.org, patches@...nelci.org,
lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
f.fainelli@...il.com, sudipm.mukherjee@...il.com,
srw@...dewatkins.net, rwarsow@....de, conor@...nel.org
Subject: Re: [PATCH 5.10 000/406] 5.10.195-rc1 review
On Tue, Sep 19, 2023 at 09:57:25PM -0700, Guenter Roeck wrote:
> On 9/17/23 12:07, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.10.195 release.
> > There are 406 patches in this series, all will be posted as a response
> > to this one. If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Tue, 19 Sep 2023 19:10:04 +0000.
> > Anything received after that time might be too late.
> >
>
> chromeos-5.10 locks up in configfs_lookup() after the merge of v5.10.195.
>
> I am a bit puzzled because I see
>
> c709c7ca020a configfs: fix a race in configfs_lookup()
>
> in v5.10.195 but not in the list of commits below. I guess I must be
> missing something.
It was part of the big patchset, it was posted here:
https://lore.kernel.org/r/20230917191101.511939651@linuxfoundation.org
Not hidden at all :)
and was submitted here:
https://lore.kernel.org/r/ZPOZFHHA0abVmGx+@westworld
> Either case, the code now looks as follows.
>
> configfs_lookup()
> {
> ...
> spin_lock(&configfs_dirent_lock);
> ...
> err = configfs_attach_attr(sd, dentry);
> ...
> spin_unlock(&configfs_dirent_lock);
> ...
> }
>
> and
>
> configfs_attach_attr(...)
> {
> ...
> spin_lock(&configfs_dirent_lock);
> ...
> }
>
> which unless it is way too late here and I really need to go to sleep
> just won't work.
Kyle, you did the backport, any comments?
thanks,
greg k-h
Powered by blists - more mailing lists